Make changes required for testtest

36 files changed, 61235 insertions, 39 deletions

diff --git a/buildfile b/buildfile
index 17ba8ab..c375238 100644
--- a/buildfile
+++ b/buildfile
@@ -1,7 +1,7 @@
 # file      : buildfile
 # license   : MIT; see accompanying LICENSE file
 
-./: {*/ -build/ -web/}                                     \
+./: {*/ -build/ -web/ -doc/}                                     \
     doc{NEWS README INSTALL*} legal{LICENSE AUTHORS LEGAL} \
     manifest
 
diff --git a/clean/clean-options.cxx b/clean/clean-options.cxx
new file mode 100644
index 0000000..c33ecd7
--- /dev/null
+++ b/clean/clean-options.cxx
@@ -0,0 +1,836 @@
+// -*- C++ -*-
+//
+// This file was generated by CLI, a command line interface
+// compiler for C++.
+//
+
+// Begin prologue.
+//
+//
+// End prologue.
+
+#include <clean/clean-options.hxx>
+
+#include <map>
+#include <set>
+#include <string>
+#include <vector>
+#include <ostream>
+#include <sstream>
+
+namespace cli
+{
+  // unknown_option
+  //
+  unknown_option::
+  ~unknown_option () throw ()
+  {
+  }
+
+  void unknown_option::
+  print (::std::ostream& os) const
+  {
+    os << "unknown option '" << option ().c_str () << "'";
+  }
+
+  const char* unknown_option::
+  what () const throw ()
+  {
+    return "unknown option";
+  }
+
+  // unknown_argument
+  //
+  unknown_argument::
+  ~unknown_argument () throw ()
+  {
+  }
+
+  void unknown_argument::
+  print (::std::ostream& os) const
+  {
+    os << "unknown argument '" << argument ().c_str () << "'";
+  }
+
+  const char* unknown_argument::
+  what () const throw ()
+  {
+    return "unknown argument";
+  }
+
+  // missing_value
+  //
+  missing_value::
+  ~missing_value () throw ()
+  {
+  }
+
+  void missing_value::
+  print (::std::ostream& os) const
+  {
+    os << "missing value for option '" << option ().c_str () << "'";
+  }
+
+  const char* missing_value::
+  what () const throw ()
+  {
+    return "missing option value";
+  }
+
+  // invalid_value
+  //
+  invalid_value::
+  ~invalid_value () throw ()
+  {
+  }
+
+  void invalid_value::
+  print (::std::ostream& os) const
+  {
+    os << "invalid value '" << value ().c_str () << "' for option '"
+       << option ().c_str () << "'";
+
+    if (!message ().empty ())
+      os << ": " << message ().c_str ();
+  }
+
+  const char* invalid_value::
+  what () const throw ()
+  {
+    return "invalid option value";
+  }
+
+  // eos_reached
+  //
+  void eos_reached::
+  print (::std::ostream& os) const
+  {
+    os << what ();
+  }
+
+  const char* eos_reached::
+  what () const throw ()
+  {
+    return "end of argument stream reached";
+  }
+
+  // scanner
+  //
+  scanner::
+  ~scanner ()
+  {
+  }
+
+  // argv_scanner
+  //
+  bool argv_scanner::
+  more ()
+  {
+    return i_ < argc_;
+  }
+
+  const char* argv_scanner::
+  peek ()
+  {
+    if (i_ < argc_)
+      return argv_[i_];
+    else
+      throw eos_reached ();
+  }
+
+  const char* argv_scanner::
+  next ()
+  {
+    if (i_ < argc_)
+    {
+      const char* r (argv_[i_]);
+
+      if (erase_)
+      {
+        for (int i (i_ + 1); i < argc_; ++i)
+          argv_[i - 1] = argv_[i];
+
+        --argc_;
+        argv_[argc_] = 0;
+      }
+      else
+        ++i_;
+
+      return r;
+    }
+    else
+      throw eos_reached ();
+  }
+
+  void argv_scanner::
+  skip ()
+  {
+    if (i_ < argc_)
+      ++i_;
+    else
+      throw eos_reached ();
+  }
+
+  template <typename X>
+  struct parser
+  {
+    static void
+    parse (X& x, bool& xs, scanner& s)
+    {
+      using namespace std;
+
+      const char* o (s.next ());
+      if (s.more ())
+      {
+        string v (s.next ());
+        istringstream is (v);
+        if (!(is >> x && is.peek () == istringstream::traits_type::eof ()))
+          throw invalid_value (o, v);
+      }
+      else
+        throw missing_value (o);
+
+      xs = true;
+    }
+  };
+
+  template <>
+  struct parser<bool>
+  {
+    static void
+    parse (bool& x, scanner& s)
+    {
+      s.next ();
+      x = true;
+    }
+  };
+
+  template <>
+  struct parser<std::string>
+  {
+    static void
+    parse (std::string& x, bool& xs, scanner& s)
+    {
+      const char* o (s.next ());
+
+      if (s.more ())
+        x = s.next ();
+      else
+        throw missing_value (o);
+
+      xs = true;
+    }
+  };
+
+  template <typename X>
+  struct parser<std::vector<X> >
+  {
+    static void
+    parse (std::vector<X>& c, bool& xs, scanner& s)
+    {
+      X x;
+      bool dummy;
+      parser<X>::parse (x, dummy, s);
+      c.push_back (x);
+      xs = true;
+    }
+  };
+
+  template <typename X, typename C>
+  struct parser<std::set<X, C> >
+  {
+    static void
+    parse (std::set<X, C>& c, bool& xs, scanner& s)
+    {
+      X x;
+      bool dummy;
+      parser<X>::parse (x, dummy, s);
+      c.insert (x);
+      xs = true;
+    }
+  };
+
+  template <typename K, typename V, typename C>
+  struct parser<std::map<K, V, C> >
+  {
+    static void
+    parse (std::map<K, V, C>& m, bool& xs, scanner& s)
+    {
+      const char* o (s.next ());
+
+      if (s.more ())
+      {
+        std::string ov (s.next ());
+        std::string::size_type p = ov.find ('=');
+
+        K k = K ();
+        V v = V ();
+        std::string kstr (ov, 0, p);
+        std::string vstr (ov, (p != std::string::npos ? p + 1 : ov.size ()));
+
+        int ac (2);
+        char* av[] =
+        {
+          const_cast<char*> (o),
+          0
+        };
+
+        bool dummy;
+        if (!kstr.empty ())
+        {
+          av[1] = const_cast<char*> (kstr.c_str ());
+          argv_scanner s (0, ac, av);
+          parser<K>::parse (k, dummy, s);
+        }
+
+        if (!vstr.empty ())
+        {
+          av[1] = const_cast<char*> (vstr.c_str ());
+          argv_scanner s (0, ac, av);
+          parser<V>::parse (v, dummy, s);
+        }
+
+        m[k] = v;
+      }
+      else
+        throw missing_value (o);
+
+      xs = true;
+    }
+  };
+
+  template <typename X, typename T, T X::*M>
+  void
+  thunk (X& x, scanner& s)
+  {
+    parser<T>::parse (x.*M, s);
+  }
+
+  template <typename X, typename T, T X::*M, bool X::*S>
+  void
+  thunk (X& x, scanner& s)
+  {
+    parser<T>::parse (x.*M, x.*S, s);
+  }
+}
+
+#include <map>
+#include <cstring>
+
+// options
+//
+
+options::
+options ()
+: archive_ (),
+  db_user_ (),
+  db_user_specified_ (false),
+  db_password_ (),
+  db_password_specified_ (false),
+  db_name_ (),
+  db_name_specified_ (false),
+  db_host_ (),
+  db_host_specified_ (false),
+  db_port_ (0),
+  db_port_specified_ (false),
+  pager_ (),
+  pager_specified_ (false),
+  pager_option_ (),
+  pager_option_specified_ (false),
+  help_ (),
+  version_ ()
+{
+}
+
+options::
+options (int& argc,
+         char** argv,
+         bool erase,
+         ::cli::unknown_mode opt,
+         ::cli::unknown_mode arg)
+: archive_ (),
+  db_user_ (),
+  db_user_specified_ (false),
+  db_password_ (),
+  db_password_specified_ (false),
+  db_name_ (),
+  db_name_specified_ (false),
+  db_host_ (),
+  db_host_specified_ (false),
+  db_port_ (0),
+  db_port_specified_ (false),
+  pager_ (),
+  pager_specified_ (false),
+  pager_option_ (),
+  pager_option_specified_ (false),
+  help_ (),
+  version_ ()
+{
+  ::cli::argv_scanner s (argc, argv, erase);
+  _parse (s, opt, arg);
+}
+
+options::
+options (int start,
+         int& argc,
+         char** argv,
+         bool erase,
+         ::cli::unknown_mode opt,
+         ::cli::unknown_mode arg)
+: archive_ (),
+  db_user_ (),
+  db_user_specified_ (false),
+  db_password_ (),
+  db_password_specified_ (false),
+  db_name_ (),
+  db_name_specified_ (false),
+  db_host_ (),
+  db_host_specified_ (false),
+  db_port_ (0),
+  db_port_specified_ (false),
+  pager_ (),
+  pager_specified_ (false),
+  pager_option_ (),
+  pager_option_specified_ (false),
+  help_ (),
+  version_ ()
+{
+  ::cli::argv_scanner s (start, argc, argv, erase);
+  _parse (s, opt, arg);
+}
+
+options::
+options (int& argc,
+         char** argv,
+         int& end,
+         bool erase,
+         ::cli::unknown_mode opt,
+         ::cli::unknown_mode arg)
+: archive_ (),
+  db_user_ (),
+  db_user_specified_ (false),
+  db_password_ (),
+  db_password_specified_ (false),
+  db_name_ (),
+  db_name_specified_ (false),
+  db_host_ (),
+  db_host_specified_ (false),
+  db_port_ (0),
+  db_port_specified_ (false),
+  pager_ (),
+  pager_specified_ (false),
+  pager_option_ (),
+  pager_option_specified_ (false),
+  help_ (),
+  version_ ()
+{
+  ::cli::argv_scanner s (argc, argv, erase);
+  _parse (s, opt, arg);
+  end = s.end ();
+}
+
+options::
+options (int start,
+         int& argc,
+         char** argv,
+         int& end,
+         bool erase,
+         ::cli::unknown_mode opt,
+         ::cli::unknown_mode arg)
+: archive_ (),
+  db_user_ (),
+  db_user_specified_ (false),
+  db_password_ (),
+  db_password_specified_ (false),
+  db_name_ (),
+  db_name_specified_ (false),
+  db_host_ (),
+  db_host_specified_ (false),
+  db_port_ (0),
+  db_port_specified_ (false),
+  pager_ (),
+  pager_specified_ (false),
+  pager_option_ (),
+  pager_option_specified_ (false),
+  help_ (),
+  version_ ()
+{
+  ::cli::argv_scanner s (start, argc, argv, erase);
+  _parse (s, opt, arg);
+  end = s.end ();
+}
+
+options::
+options (::cli::scanner& s,
+         ::cli::unknown_mode opt,
+         ::cli::unknown_mode arg)
+: archive_ (),
+  db_user_ (),
+  db_user_specified_ (false),
+  db_password_ (),
+  db_password_specified_ (false),
+  db_name_ (),
+  db_name_specified_ (false),
+  db_host_ (),
+  db_host_specified_ (false),
+  db_port_ (0),
+  db_port_specified_ (false),
+  pager_ (),
+  pager_specified_ (false),
+  pager_option_ (),
+  pager_option_specified_ (false),
+  help_ (),
+  version_ ()
+{
+  _parse (s, opt, arg);
+}
+
+::cli::usage_para options::
+print_usage (::std::ostream& os, ::cli::usage_para p)
+{
+  CLI_POTENTIALLY_UNUSED (os);
+
+  if (p != ::cli::usage_para::none)
+    os << ::std::endl;
+
+  os << "\033[1mOPTIONS\033[0m" << ::std::endl;
+
+  os << std::endl
+     << "\033[1m--archive\033[0m          Archive old tenants." << ::std::endl;
+
+  os << std::endl
+     << "\033[1m--db-user\033[0m \033[4muser\033[0m     Database user name. If not specified, then operating system" << ::std::endl
+     << "                   (login) name is used." << ::std::endl;
+
+  os << std::endl
+     << "\033[1m--db-password\033[0m \033[4mpass\033[0m Database password. If not specified, then login without" << ::std::endl
+     << "                   password is expected to work." << ::std::endl;
+
+  os << std::endl
+     << "\033[1m--db-name\033[0m \033[4mname\033[0m     Database name. If not specified, then \033[1mbrep_build\033[0m is used for" << ::std::endl
+     << "                   the first form and \033[1mbrep_package\033[0m for the second." << ::std::endl;
+
+  os << std::endl
+     << "\033[1m--db-host\033[0m \033[4mhost\033[0m     Database host name, address, or socket. If not specified," << ::std::endl
+     << "                   then connect to \033[1mlocalhost\033[0m using the operating system-default" << ::std::endl
+     << "                   mechanism (Unix-domain socket, etc)." << ::std::endl;
+
+  os << std::endl
+     << "\033[1m--db-port\033[0m \033[4mport\033[0m     Database port number. If not specified, the default port is" << ::std::endl
+     << "                   used." << ::std::endl;
+
+  os << std::endl
+     << "\033[1m--pager\033[0m \033[4mpath\033[0m       The pager program to be used to show long text. Commonly" << ::std::endl
+     << "                   used pager programs are \033[1mless\033[0m and \033[1mmore\033[0m. You can also specify" << ::std::endl
+     << "                   additional options that should be passed to the pager" << ::std::endl
+     << "                   program with \033[1m--pager-option\033[0m. If an empty string is specified" << ::std::endl
+     << "                   as the pager program, then no pager will be used. If the" << ::std::endl
+     << "                   pager program is not explicitly specified, then \033[1mbrep-clean\033[0m" << ::std::endl
+     << "                   will try to use \033[1mless\033[0m. If it is not available, then no pager" << ::std::endl
+     << "                   will be used." << ::std::endl;
+
+  os << std::endl
+     << "\033[1m--pager-option\033[0m \033[4mopt\033[0m Additional option to be passed to the pager program. See" << ::std::endl
+     << "                   \033[1m--pager\033[0m for more information on the pager program. Repeat" << ::std::endl
+     << "                   this option to specify multiple pager options." << ::std::endl;
+
+  os << std::endl
+     << "\033[1m--help\033[0m             Print usage information and exit." << ::std::endl;
+
+  os << std::endl
+     << "\033[1m--version\033[0m          Print version and exit." << ::std::endl;
+
+  p = ::cli::usage_para::option;
+
+  return p;
+}
+
+typedef
+std::map<std::string, void (*) (options&, ::cli::scanner&)>
+_cli_options_map;
+
+static _cli_options_map _cli_options_map_;
+
+struct _cli_options_map_init
+{
+  _cli_options_map_init ()
+  {
+    _cli_options_map_["--archive"] =
+    &::cli::thunk< options, bool, &options::archive_ >;
+    _cli_options_map_["--db-user"] =
+    &::cli::thunk< options, std::string, &options::db_user_,
+      &options::db_user_specified_ >;
+    _cli_options_map_["--db-password"] =
+    &::cli::thunk< options, std::string, &options::db_password_,
+      &options::db_password_specified_ >;
+    _cli_options_map_["--db-name"] =
+    &::cli::thunk< options, std::string, &options::db_name_,
+      &options::db_name_specified_ >;
+    _cli_options_map_["--db-host"] =
+    &::cli::thunk< options, std::string, &options::db_host_,
+      &options::db_host_specified_ >;
+    _cli_options_map_["--db-port"] =
+    &::cli::thunk< options, std::uint16_t, &options::db_port_,
+      &options::db_port_specified_ >;
+    _cli_options_map_["--pager"] =
+    &::cli::thunk< options, std::string, &options::pager_,
+      &options::pager_specified_ >;
+    _cli_options_map_["--pager-option"] =
+    &::cli::thunk< options, std::vector<std::string>, &options::pager_option_,
+      &options::pager_option_specified_ >;
+    _cli_options_map_["--help"] =
+    &::cli::thunk< options, bool, &options::help_ >;
+    _cli_options_map_["--version"] =
+    &::cli::thunk< options, bool, &options::version_ >;
+  }
+};
+
+static _cli_options_map_init _cli_options_map_init_;
+
+bool options::
+_parse (const char* o, ::cli::scanner& s)
+{
+  _cli_options_map::const_iterator i (_cli_options_map_.find (o));
+
+  if (i != _cli_options_map_.end ())
+  {
+    (*(i->second)) (*this, s);
+    return true;
+  }
+
+  return false;
+}
+
+bool options::
+_parse (::cli::scanner& s,
+        ::cli::unknown_mode opt_mode,
+        ::cli::unknown_mode arg_mode)
+{
+  // Can't skip combined flags (--no-combined-flags).
+  //
+  assert (opt_mode != ::cli::unknown_mode::skip);
+
+  bool r = false;
+  bool opt = true;
+
+  while (s.more ())
+  {
+    const char* o = s.peek ();
+
+    if (std::strcmp (o, "--") == 0)
+    {
+      opt = false;
+      s.skip ();
+      r = true;
+      continue;
+    }
+
+    if (opt)
+    {
+      if (_parse (o, s))
+      {
+        r = true;
+        continue;
+      }
+
+      if (std::strncmp (o, "-", 1) == 0 && o[1] != '\0')
+      {
+        // Handle combined option values.
+        //
+        std::string co;
+        if (const char* v = std::strchr (o, '='))
+        {
+          co.assign (o, 0, v - o);
+          ++v;
+
+          int ac (2);
+          char* av[] =
+          {
+            const_cast<char*> (co.c_str ()),
+            const_cast<char*> (v)
+          };
+
+          ::cli::argv_scanner ns (0, ac, av);
+
+          if (_parse (co.c_str (), ns))
+          {
+            // Parsed the option but not its value?
+            //
+            if (ns.end () != 2)
+              throw ::cli::invalid_value (co, v);
+
+            s.next ();
+            r = true;
+            continue;
+          }
+          else
+          {
+            // Set the unknown option and fall through.
+            //
+            o = co.c_str ();
+          }
+        }
+
+        // Handle combined flags.
+        //
+        char cf[3];
+        {
+          const char* p = o + 1;
+          for (; *p != '\0'; ++p)
+          {
+            if (!((*p >= 'a' && *p <= 'z') ||
+                  (*p >= 'A' && *p <= 'Z') ||
+                  (*p >= '0' && *p <= '9')))
+              break;
+          }
+
+          if (*p == '\0')
+          {
+            for (p = o + 1; *p != '\0'; ++p)
+            {
+              std::strcpy (cf, "-");
+              cf[1] = *p;
+              cf[2] = '\0';
+
+              int ac (1);
+              char* av[] =
+              {
+                cf
+              };
+
+              ::cli::argv_scanner ns (0, ac, av);
+
+              if (!_parse (cf, ns))
+                break;
+            }
+
+            if (*p == '\0')
+            {
+              // All handled.
+              //
+              s.next ();
+              r = true;
+              continue;
+            }
+            else
+            {
+              // Set the unknown option and fall through.
+              //
+              o = cf;
+            }
+          }
+        }
+
+        switch (opt_mode)
+        {
+          case ::cli::unknown_mode::skip:
+          {
+            s.skip ();
+            r = true;
+            continue;
+          }
+          case ::cli::unknown_mode::stop:
+          {
+            break;
+          }
+          case ::cli::unknown_mode::fail:
+          {
+            throw ::cli::unknown_option (o);
+          }
+        }
+
+        break;
+      }
+    }
+
+    switch (arg_mode)
+    {
+      case ::cli::unknown_mode::skip:
+      {
+        s.skip ();
+        r = true;
+        continue;
+      }
+      case ::cli::unknown_mode::stop:
+      {
+        break;
+      }
+      case ::cli::unknown_mode::fail:
+      {
+        throw ::cli::unknown_argument (o);
+      }
+    }
+
+    break;
+  }
+
+  return r;
+}
+
+::cli::usage_para
+print_usage (::std::ostream& os, ::cli::usage_para p)
+{
+  CLI_POTENTIALLY_UNUSED (os);
+
+  if (p != ::cli::usage_para::none)
+    os << ::std::endl;
+
+  os << "\033[1mSYNOPSIS\033[0m" << ::std::endl
+     << ::std::endl
+     << "\033[1mbrep-clean --help\033[0m" << ::std::endl
+     << "\033[1mbrep-clean --version\033[0m" << ::std::endl
+     << "\033[1mbrep-clean\033[0m [\033[4moptions\033[0m] builds \033[4mbuildtab\033[0m [\033[4mtimeout\033[0m...]" << ::std::endl
+     << "\033[1mbrep-clean\033[0m [\033[4moptions\033[0m] tenants \033[4mtimeout\033[0m\033[0m" << ::std::endl
+     << ::std::endl
+     << "\033[1mDESCRIPTION\033[0m" << ::std::endl
+     << ::std::endl
+     << "\033[1mbrep-clean\033[0m deletes expired package builds from the brep \033[1mbuild\033[0m database or" << ::std::endl
+     << "deletes/archives tenants from the brep \033[1mpackage\033[0m database." << ::std::endl
+     << ::std::endl
+     << "The first form considers a build as expired if the corresponding package" << ::std::endl
+     << "version is not in the \033[1mpackage\033[0m database, or the configuration is not listed in" << ::std::endl
+     << "the \033[4mbuildtab\033[0m file, or its age is older than the specified timeout for this" << ::std::endl
+     << "build toolchain." << ::std::endl
+     << ::std::endl
+     << "Build \033[4mtimeout\033[0m, if specified, should have the [\033[4mname\033[0m=]\033[4mhours\033[0m\033[0m form. Specify zero" << ::std::endl
+     << "for \033[4mhours\033[0m to make builds for a toolchain to never expire. Omit \033[4mname\033[0m (including" << ::std::endl
+     << "\033[1m=\033[0m) to specify the default timeout. It will apply to all the toolchains that" << ::std::endl
+     << "don't have a toolchain-specific timeout." << ::std::endl
+     << ::std::endl
+     << "The second form considers a tenant as expired if its age is older than the" << ::std::endl
+     << "specified \033[4mtimeout\033[0m." << ::std::endl
+     << ::std::endl
+     << "If the \033[1m--archive\033[0m option is specified, then the tenant is archived rather than" << ::std::endl
+     << "deleted. In this state the tenant packages (and their builds) are still visible" << ::std::endl
+     << "in \033[1mbrep\033[0m but are not (re-)built by build bots." << ::std::endl
+     << ::std::endl
+     << "Note that \033[1mbrep-clean\033[0m expects the \033[1mbuild\033[0m and \033[1mpackage\033[0m database schemas to have" << ::std::endl
+     << "already been created using \033[1mbrep-migrate(1)\033[0m." << ::std::endl;
+
+  p = ::options::print_usage (os, ::cli::usage_para::text);
+
+  if (p != ::cli::usage_para::none)
+    os << ::std::endl;
+
+  os << "\033[1mEXIT STATUS\033[0m" << ::std::endl
+     << ::std::endl
+     << "\033[1m0\033[0m" << ::std::endl
+     << "    Success." << ::std::endl
+     << "\033[1m1\033[0m" << ::std::endl
+     << "    Fatal error." << ::std::endl
+     << "\033[1m2\033[0m" << ::std::endl
+     << "    An instance of \033[1mbrep-clean\033[0m or some other \033[1mbrep\033[0m utility is already running." << ::std::endl
+     << "    Try again." << ::std::endl
+     << "\033[1m3\033[0m" << ::std::endl
+     << "    Recoverable database error. Try again." << ::std::endl;
+
+  p = ::cli::usage_para::text;
+
+  return p;
+}
+
+// Begin epilogue.
+//
+//
+// End epilogue.
+
diff --git a/clean/clean-options.hxx b/clean/clean-options.hxx
new file mode 100644
index 0000000..94b92fb
--- /dev/null
+++ b/clean/clean-options.hxx
@@ -0,0 +1,393 @@
+// -*- C++ -*-
+//
+// This file was generated by CLI, a command line interface
+// compiler for C++.
+//
+
+#ifndef CLEAN_CLEAN_OPTIONS_HXX
+#define CLEAN_CLEAN_OPTIONS_HXX
+
+// Begin prologue.
+//
+//
+// End prologue.
+
+#include <iosfwd>
+#include <string>
+#include <cstddef>
+#include <exception>
+
+#ifndef CLI_POTENTIALLY_UNUSED
+#  if defined(_MSC_VER) || defined(__xlC__)
+#    define CLI_POTENTIALLY_UNUSED(x) (void*)&x
+#  else
+#    define CLI_POTENTIALLY_UNUSED(x) (void)x
+#  endif
+#endif
+
+namespace cli
+{
+  class usage_para
+  {
+    public:
+    enum value
+    {
+      none,
+      text,
+      option
+    };
+
+    usage_para (value);
+
+    operator value () const 
+    {
+      return v_;
+    }
+
+    private:
+    value v_;
+  };
+
+  class unknown_mode
+  {
+    public:
+    enum value
+    {
+      skip,
+      stop,
+      fail
+    };
+
+    unknown_mode (value);
+
+    operator value () const 
+    {
+      return v_;
+    }
+
+    private:
+    value v_;
+  };
+
+  // Exceptions.
+  //
+
+  class exception: public std::exception
+  {
+    public:
+    virtual void
+    print (::std::ostream&) const = 0;
+  };
+
+  ::std::ostream&
+  operator<< (::std::ostream&, const exception&);
+
+  class unknown_option: public exception
+  {
+    public:
+    virtual
+    ~unknown_option () throw ();
+
+    unknown_option (const std::string& option);
+
+    const std::string&
+    option () const;
+
+    virtual void
+    print (::std::ostream&) const;
+
+    virtual const char*
+    what () const throw ();
+
+    private:
+    std::string option_;
+  };
+
+  class unknown_argument: public exception
+  {
+    public:
+    virtual
+    ~unknown_argument () throw ();
+
+    unknown_argument (const std::string& argument);
+
+    const std::string&
+    argument () const;
+
+    virtual void
+    print (::std::ostream&) const;
+
+    virtual const char*
+    what () const throw ();
+
+    private:
+    std::string argument_;
+  };
+
+  class missing_value: public exception
+  {
+    public:
+    virtual
+    ~missing_value () throw ();
+
+    missing_value (const std::string& option);
+
+    const std::string&
+    option () const;
+
+    virtual void
+    print (::std::ostream&) const;
+
+    virtual const char*
+    what () const throw ();
+
+    private:
+    std::string option_;
+  };
+
+  class invalid_value: public exception
+  {
+    public:
+    virtual
+    ~invalid_value () throw ();
+
+    invalid_value (const std::string& option,
+                   const std::string& value,
+                   const std::string& message = std::string ());
+
+    const std::string&
+    option () const;
+
+    const std::string&
+    value () const;
+
+    const std::string&
+    message () const;
+
+    virtual void
+    print (::std::ostream&) const;
+
+    virtual const char*
+    what () const throw ();
+
+    private:
+    std::string option_;
+    std::string value_;
+    std::string message_;
+  };
+
+  class eos_reached: public exception
+  {
+    public:
+    virtual void
+    print (::std::ostream&) const;
+
+    virtual const char*
+    what () const throw ();
+  };
+
+  // Command line argument scanner interface.
+  //
+  // The values returned by next() are guaranteed to be valid
+  // for the two previous arguments up until a call to a third
+  // peek() or next().
+  //
+  class scanner
+  {
+    public:
+    virtual
+    ~scanner ();
+
+    virtual bool
+    more () = 0;
+
+    virtual const char*
+    peek () = 0;
+
+    virtual const char*
+    next () = 0;
+
+    virtual void
+    skip () = 0;
+  };
+
+  class argv_scanner: public scanner
+  {
+    public:
+    argv_scanner (int& argc, char** argv, bool erase = false);
+    argv_scanner (int start, int& argc, char** argv, bool erase = false);
+
+    int
+    end () const;
+
+    virtual bool
+    more ();
+
+    virtual const char*
+    peek ();
+
+    virtual const char*
+    next ();
+
+    virtual void
+    skip ();
+
+    private:
+    int i_;
+    int& argc_;
+    char** argv_;
+    bool erase_;
+  };
+
+  template <typename X>
+  struct parser;
+}
+
+#include <vector>
+
+#include <string>
+
+#include <cstdint>
+
+class options
+{
+  public:
+  options ();
+
+  options (int& argc,
+           char** argv,
+           bool erase = false,
+           ::cli::unknown_mode option = ::cli::unknown_mode::fail,
+           ::cli::unknown_mode argument = ::cli::unknown_mode::stop);
+
+  options (int start,
+           int& argc,
+           char** argv,
+           bool erase = false,
+           ::cli::unknown_mode option = ::cli::unknown_mode::fail,
+           ::cli::unknown_mode argument = ::cli::unknown_mode::stop);
+
+  options (int& argc,
+           char** argv,
+           int& end,
+           bool erase = false,
+           ::cli::unknown_mode option = ::cli::unknown_mode::fail,
+           ::cli::unknown_mode argument = ::cli::unknown_mode::stop);
+
+  options (int start,
+           int& argc,
+           char** argv,
+           int& end,
+           bool erase = false,
+           ::cli::unknown_mode option = ::cli::unknown_mode::fail,
+           ::cli::unknown_mode argument = ::cli::unknown_mode::stop);
+
+  options (::cli::scanner&,
+           ::cli::unknown_mode option = ::cli::unknown_mode::fail,
+           ::cli::unknown_mode argument = ::cli::unknown_mode::stop);
+
+  // Option accessors.
+  //
+  const bool&
+  archive () const;
+
+  const std::string&
+  db_user () const;
+
+  bool
+  db_user_specified () const;
+
+  const std::string&
+  db_password () const;
+
+  bool
+  db_password_specified () const;
+
+  const std::string&
+  db_name () const;
+
+  bool
+  db_name_specified () const;
+
+  const std::string&
+  db_host () const;
+
+  bool
+  db_host_specified () const;
+
+  const std::uint16_t&
+  db_port () const;
+
+  bool
+  db_port_specified () const;
+
+  const std::string&
+  pager () const;
+
+  bool
+  pager_specified () const;
+
+  const std::vector<std::string>&
+  pager_option () const;
+
+  bool
+  pager_option_specified () const;
+
+  const bool&
+  help () const;
+
+  const bool&
+  version () const;
+
+  // Print usage information.
+  //
+  static ::cli::usage_para
+  print_usage (::std::ostream&,
+               ::cli::usage_para = ::cli::usage_para::none);
+
+  // Implementation details.
+  //
+  protected:
+  bool
+  _parse (const char*, ::cli::scanner&);
+
+  private:
+  bool
+  _parse (::cli::scanner&,
+          ::cli::unknown_mode option,
+          ::cli::unknown_mode argument);
+
+  public:
+  bool archive_;
+  std::string db_user_;
+  bool db_user_specified_;
+  std::string db_password_;
+  bool db_password_specified_;
+  std::string db_name_;
+  bool db_name_specified_;
+  std::string db_host_;
+  bool db_host_specified_;
+  std::uint16_t db_port_;
+  bool db_port_specified_;
+  std::string pager_;
+  bool pager_specified_;
+  std::vector<std::string> pager_option_;
+  bool pager_option_specified_;
+  bool help_;
+  bool version_;
+};
+
+// Print page usage information.
+//
+::cli::usage_para
+print_usage (::std::ostream&,
+             ::cli::usage_para = ::cli::usage_para::none);
+
+#include <clean/clean-options.ixx>
+
+// Begin epilogue.
+//
+//
+// End epilogue.
+
+#endif // CLEAN_CLEAN_OPTIONS_HXX
diff --git a/clean/clean-options.ixx b/clean/clean-options.ixx
new file mode 100644
index 0000000..973125d
--- /dev/null
+++ b/clean/clean-options.ixx
@@ -0,0 +1,242 @@
+// -*- C++ -*-
+//
+// This file was generated by CLI, a command line interface
+// compiler for C++.
+//
+
+// Begin prologue.
+//
+//
+// End prologue.
+
+#include <cassert>
+
+namespace cli
+{
+  // usage_para
+  //
+  inline usage_para::
+  usage_para (value v)
+  : v_ (v)
+  {
+  }
+
+  // unknown_mode
+  //
+  inline unknown_mode::
+  unknown_mode (value v)
+  : v_ (v)
+  {
+  }
+
+  // exception
+  //
+  inline ::std::ostream&
+  operator<< (::std::ostream& os, const exception& e)
+  {
+    e.print (os);
+    return os;
+  }
+
+  // unknown_option
+  //
+  inline unknown_option::
+  unknown_option (const std::string& option)
+  : option_ (option)
+  {
+  }
+
+  inline const std::string& unknown_option::
+  option () const
+  {
+    return option_;
+  }
+
+  // unknown_argument
+  //
+  inline unknown_argument::
+  unknown_argument (const std::string& argument)
+  : argument_ (argument)
+  {
+  }
+
+  inline const std::string& unknown_argument::
+  argument () const
+  {
+    return argument_;
+  }
+
+  // missing_value
+  //
+  inline missing_value::
+  missing_value (const std::string& option)
+  : option_ (option)
+  {
+  }
+
+  inline const std::string& missing_value::
+  option () const
+  {
+    return option_;
+  }
+
+  // invalid_value
+  //
+  inline invalid_value::
+  invalid_value (const std::string& option,
+                 const std::string& value,
+                 const std::string& message)
+  : option_ (option),
+    value_ (value),
+    message_ (message)
+  {
+  }
+
+  inline const std::string& invalid_value::
+  option () const
+  {
+    return option_;
+  }
+
+  inline const std::string& invalid_value::
+  value () const
+  {
+    return value_;
+  }
+
+  inline const std::string& invalid_value::
+  message () const
+  {
+    return message_;
+  }
+
+  // argv_scanner
+  //
+  inline argv_scanner::
+  argv_scanner (int& argc, char** argv, bool erase)
+  : i_ (1), argc_ (argc), argv_ (argv), erase_ (erase)
+  {
+  }
+
+  inline argv_scanner::
+  argv_scanner (int start, int& argc, char** argv, bool erase)
+  : i_ (start), argc_ (argc), argv_ (argv), erase_ (erase)
+  {
+  }
+
+  inline int argv_scanner::
+  end () const
+  {
+    return i_;
+  }
+}
+
+// options
+//
+
+inline const bool& options::
+archive () const
+{
+  return this->archive_;
+}
+
+inline const std::string& options::
+db_user () const
+{
+  return this->db_user_;
+}
+
+inline bool options::
+db_user_specified () const
+{
+  return this->db_user_specified_;
+}
+
+inline const std::string& options::
+db_password () const
+{
+  return this->db_password_;
+}
+
+inline bool options::
+db_password_specified () const
+{
+  return this->db_password_specified_;
+}
+
+inline const std::string& options::
+db_name () const
+{
+  return this->db_name_;
+}
+
+inline bool options::
+db_name_specified () const
+{
+  return this->db_name_specified_;
+}
+
+inline const std::string& options::
+db_host () const
+{
+  return this->db_host_;
+}
+
+inline bool options::
+db_host_specified () const
+{
+  return this->db_host_specified_;
+}
+
+inline const std::uint16_t& options::
+db_port () const
+{
+  return this->db_port_;
+}
+
+inline bool options::
+db_port_specified () const
+{
+  return this->db_port_specified_;
+}
+
+inline const std::string& options::
+pager () const
+{
+  return this->pager_;
+}
+
+inline bool options::
+pager_specified () const
+{
+  return this->pager_specified_;
+}
+
+inline const std::vector<std::string>& options::
+pager_option () const
+{
+  return this->pager_option_;
+}
+
+inline bool options::
+pager_option_specified () const
+{
+  return this->pager_option_specified_;
+}
+
+inline const bool& options::
+help () const
+{
+  return this->help_;
+}
+
+inline const bool& options::
+version () const
+{
+  return this->version_;
+}
+
+// Begin epilogue.
+//
+//
+// End epilogue.
diff --git a/libbrep/build-extra.hxx b/libbrep/build-extra.hxx
new file mode 100644
index 0000000..fd59069
--- /dev/null
+++ b/libbrep/build-extra.hxx
@@ -0,0 +1,288 @@
+  0x2d, 0x2d, 0x20, 0x54, 0x68, 0x69, 0x73, 0x20, 0x66, 0x69, 0x6c, 0x65,
+  0x20, 0x73, 0x68, 0x6f, 0x75, 0x6c, 0x64, 0x20, 0x62, 0x65, 0x20, 0x70,
+  0x61, 0x72, 0x73, 0x61, 0x62, 0x6c, 0x65, 0x20, 0x62, 0x79, 0x20, 0x74,
+  0x68, 0x65, 0x20, 0x62, 0x72, 0x65, 0x70, 0x2d, 0x6d, 0x69, 0x67, 0x72,
+  0x61, 0x74, 0x65, 0x20, 0x75, 0x74, 0x69, 0x6c, 0x69, 0x74, 0x79, 0x2e,
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+  0x2c, 0x20, 0x73, 0x65, 0x65, 0x20, 0x70, 0x61, 0x63, 0x6b, 0x61, 0x67,
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+  0x65, 0x20, 0x27, 0x62, 0x75, 0x69, 0x6c, 0x64, 0x27, 0x20, 0x73, 0x63,
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+  0x20, 0x74, 0x68, 0x69, 0x73, 0x20, 0x66, 0x69, 0x6c, 0x65, 0x2c, 0x20,
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+  0x20, 0x66, 0x69, 0x6c, 0x65, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x64, 0x65,
+  0x74, 0x61, 0x69, 0x6c, 0x73, 0x2e, 0x0a, 0x2d, 0x2d, 0x0a, 0x0a, 0x44,
+  0x52, 0x4f, 0x50, 0x20, 0x46, 0x4f, 0x52, 0x45, 0x49, 0x47, 0x4e, 0x20,
+  0x54, 0x41, 0x42, 0x4c, 0x45, 0x20, 0x49, 0x46, 0x20, 0x45, 0x58, 0x49,
+  0x53, 0x54, 0x53, 0x20, 0x62, 0x75, 0x69, 0x6c, 0x64, 0x5f, 0x70, 0x61,
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+  0x20, 0x62, 0x75, 0x69, 0x6c, 0x64, 0x5f, 0x70, 0x61, 0x63, 0x6b, 0x61,
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diff --git a/libbrep/build-odb.cxx b/libbrep/build-odb.cxx
new file mode 100644
index 0000000..1a75f07
--- /dev/null
+++ b/libbrep/build-odb.cxx
@@ -0,0 +1,4541 @@
+// -*- C++ -*-
+//
+// This file was generated by ODB, object-relational mapping (ORM)
+// compiler for C++.
+//
+
+#include <odb/pre.hxx>
+
+#include <libbrep/build-odb.hxx>
+
+#include <cassert>
+#include <cstring>  // std::memcpy
+
+#include <odb/schema-catalog-impl.hxx>
+
+#include <odb/pgsql/traits.hxx>
+#include <odb/pgsql/database.hxx>
+#include <odb/pgsql/transaction.hxx>
+#include <odb/pgsql/connection.hxx>
+#include <odb/pgsql/statement.hxx>
+#include <odb/pgsql/statement-cache.hxx>
+#include <odb/pgsql/simple-object-statements.hxx>
+#include <odb/pgsql/view-statements.hxx>
+#include <odb/pgsql/section-statements.hxx>
+#include <odb/pgsql/container-statements.hxx>
+#include <odb/pgsql/exceptions.hxx>
+#include <odb/pgsql/prepared-query.hxx>
+#include <odb/pgsql/simple-object-result.hxx>
+#include <odb/pgsql/view-result.hxx>
+
+namespace odb
+{
+  // operation_result
+  //
+
+  bool access::composite_value_traits< ::bbot::operation_result, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // operation
+    //
+    if (t[0UL])
+    {
+      i.operation_value.capacity (i.operation_size);
+      grew = true;
+    }
+
+    // status
+    //
+    if (t[1UL])
+    {
+      i.status_value.capacity (i.status_size);
+      grew = true;
+    }
+
+    // log
+    //
+    if (t[2UL])
+    {
+      i.log_value.capacity (i.log_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bbot::operation_result, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // operation
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.operation_value.data ();
+    b[n].capacity = i.operation_value.capacity ();
+    b[n].size = &i.operation_size;
+    b[n].is_null = &i.operation_null;
+    n++;
+
+    // status
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.status_value.data ();
+    b[n].capacity = i.status_value.capacity ();
+    b[n].size = &i.status_size;
+    b[n].is_null = &i.status_null;
+    n++;
+
+    // log
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.log_value.data ();
+    b[n].capacity = i.log_value.capacity ();
+    b[n].size = &i.log_size;
+    b[n].is_null = &i.log_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::bbot::operation_result, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // operation
+    //
+    {
+      ::std::string const& v =
+        o.operation;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.operation_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.operation_value,
+        size,
+        is_null,
+        v);
+      i.operation_null = is_null;
+      i.operation_size = size;
+      grew = grew || (cap != i.operation_value.capacity ());
+    }
+
+    // status
+    //
+    {
+      ::bbot::result_status const& v =
+        o.status;
+
+      // From build.hxx:35:12
+      ::std::string const& vt =
+        to_string (v);
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.status_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.status_value,
+        size,
+        is_null,
+        vt);
+      i.status_null = is_null;
+      i.status_size = size;
+      grew = grew || (cap != i.status_value.capacity ());
+    }
+
+    // log
+    //
+    {
+      ::std::string const& v =
+        o.log;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.log_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.log_value,
+        size,
+        is_null,
+        v);
+      i.log_null = is_null;
+      i.log_size = size;
+      grew = grew || (cap != i.log_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bbot::operation_result, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // operation
+    //
+    {
+      ::std::string& v =
+        o.operation;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.operation_value,
+        i.operation_size,
+        i.operation_null);
+    }
+
+    // status
+    //
+    {
+      ::bbot::result_status& v =
+        o.status;
+
+      ::std::string vt;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        vt,
+        i.status_value,
+        i.status_size,
+        i.status_null);
+
+      // From build.hxx:35:12
+      v = bbot::to_result_status (vt);
+    }
+
+    // log
+    //
+    {
+      ::std::string& v =
+        o.log;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.log_value,
+        i.log_size,
+        i.log_null);
+    }
+  }
+
+  // build_id
+  //
+
+  bool access::composite_value_traits< ::brep::build_id, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // package
+    //
+    if (composite_value_traits< ::brep::package_id, id_pgsql >::grow (
+          i.package_value, t + 0UL))
+      grew = true;
+
+    // configuration
+    //
+    if (t[6UL])
+    {
+      i.configuration_value.capacity (i.configuration_size);
+      grew = true;
+    }
+
+    // toolchain_name
+    //
+    if (t[7UL])
+    {
+      i.toolchain_name_value.capacity (i.toolchain_name_size);
+      grew = true;
+    }
+
+    // toolchain_version
+    //
+    if (composite_value_traits< ::brep::canonical_version, id_pgsql >::grow (
+          i.toolchain_version_value, t + 8UL))
+      grew = true;
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::build_id, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // package
+    //
+    composite_value_traits< ::brep::package_id, id_pgsql >::bind (
+      b + n, i.package_value, sk);
+    n += 6UL;
+
+    // configuration
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.configuration_value.data ();
+    b[n].capacity = i.configuration_value.capacity ();
+    b[n].size = &i.configuration_size;
+    b[n].is_null = &i.configuration_null;
+    n++;
+
+    // toolchain_name
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.toolchain_name_value.data ();
+    b[n].capacity = i.toolchain_name_value.capacity ();
+    b[n].size = &i.toolchain_name_size;
+    b[n].is_null = &i.toolchain_name_null;
+    n++;
+
+    // toolchain_version
+    //
+    composite_value_traits< ::brep::canonical_version, id_pgsql >::bind (
+      b + n, i.toolchain_version_value, sk);
+    n += 4UL;
+  }
+
+  bool access::composite_value_traits< ::brep::build_id, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // package
+    //
+    {
+      ::brep::package_id const& v =
+        o.package;
+
+      if (composite_value_traits< ::brep::package_id, id_pgsql >::init (
+            i.package_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    // configuration
+    //
+    {
+      ::std::string const& v =
+        o.configuration;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.configuration_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.configuration_value,
+        size,
+        is_null,
+        v);
+      i.configuration_null = is_null;
+      i.configuration_size = size;
+      grew = grew || (cap != i.configuration_value.capacity ());
+    }
+
+    // toolchain_name
+    //
+    {
+      ::std::string const& v =
+        o.toolchain_name;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.toolchain_name_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.toolchain_name_value,
+        size,
+        is_null,
+        v);
+      i.toolchain_name_null = is_null;
+      i.toolchain_name_size = size;
+      grew = grew || (cap != i.toolchain_name_value.capacity ());
+    }
+
+    // toolchain_version
+    //
+    {
+      ::brep::canonical_version const& v =
+        o.toolchain_version;
+
+      if (composite_value_traits< ::brep::canonical_version, id_pgsql >::init (
+            i.toolchain_version_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::build_id, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // package
+    //
+    {
+      ::brep::package_id& v =
+        o.package;
+
+      composite_value_traits< ::brep::package_id, id_pgsql >::init (
+        v,
+        i.package_value,
+        db);
+    }
+
+    // configuration
+    //
+    {
+      ::std::string& v =
+        o.configuration;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.configuration_value,
+        i.configuration_size,
+        i.configuration_null);
+    }
+
+    // toolchain_name
+    //
+    {
+      ::std::string& v =
+        o.toolchain_name;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.toolchain_name_value,
+        i.toolchain_name_size,
+        i.toolchain_name_null);
+    }
+
+    // toolchain_version
+    //
+    {
+      ::brep::canonical_version& v =
+        o.toolchain_version;
+
+      composite_value_traits< ::brep::canonical_version, id_pgsql >::init (
+        v,
+        i.toolchain_version_value,
+        db);
+    }
+  }
+
+  // build
+  //
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::
+  persist_statement_name[] = "persist_brep_build";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::
+  find_statement_name[] = "find_brep_build";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::
+  update_statement_name[] = "update_brep_build";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::
+  erase_statement_name[] = "erase_brep_build";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::
+  query_statement_name[] = "query_brep_build";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::
+  erase_query_statement_name[] = "erase_query_brep_build";
+
+  const unsigned int access::object_traits_impl< ::brep::build, id_pgsql >::
+  persist_statement_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int8_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int8_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid
+  };
+
+  const unsigned int access::object_traits_impl< ::brep::build, id_pgsql >::
+  find_statement_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid
+  };
+
+  const unsigned int access::object_traits_impl< ::brep::build, id_pgsql >::
+  update_statement_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int8_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int8_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid
+  };
+
+  struct access::object_traits_impl< ::brep::build, id_pgsql >::extra_statement_cache_type
+  {
+    pgsql::container_statements_impl< results_traits > results;
+
+    pgsql::section_statements< ::brep::build, results_section_traits > results_section;
+
+    extra_statement_cache_type (
+      pgsql::connection& c,
+      image_type& im,
+      id_image_type& idim,
+      pgsql::binding& id,
+      pgsql::binding& idv,
+      pgsql::native_binding& idn,
+      const unsigned int* idt)
+    : results (c, id, idn, idt),
+      results_section (c, im, idim, id, idv, idn, idt)
+    {
+    }
+  };
+
+  // results
+  //
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  select_name[] = "select_brep_build_results";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  insert_name[] = "insert_brep_build_results";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  delete_name[] = "delete_brep_build_results";
+
+  const unsigned int access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  insert_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::int8_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid
+  };
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  select_statement[] =
+  "SELECT "
+  "\"build_results\".\"index\", "
+  "\"build_results\".\"operation\", "
+  "\"build_results\".\"status\", "
+  "\"build_results\".\"log\" "
+  "FROM \"build_results\" "
+  "WHERE \"build_results\".\"package_tenant\"=$1 AND \"build_results\".\"package_name\"=$2::CITEXT AND \"build_results\".\"package_version_epoch\"=$3 AND \"build_results\".\"package_version_canonical_upstream\"=$4 AND \"build_results\".\"package_version_canonical_release\"=$5 AND \"build_results\".\"package_version_revision\"=$6 AND \"build_results\".\"configuration\"=$7 AND \"build_results\".\"toolchain_name\"=$8 AND \"build_results\".\"toolchain_version_epoch\"=$9 AND \"build_results\".\"toolchain_version_canonical_upstream\"=$10 AND \"build_results\".\"toolchain_version_canonical_release\"=$11 AND \"build_results\".\"toolchain_version_revision\"=$12 ORDER BY \"build_results\".\"index\"";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  insert_statement[] =
+  "INSERT INTO \"build_results\" "
+  "(\"package_tenant\", "
+  "\"package_name\", "
+  "\"package_version_epoch\", "
+  "\"package_version_canonical_upstream\", "
+  "\"package_version_canonical_release\", "
+  "\"package_version_revision\", "
+  "\"configuration\", "
+  "\"toolchain_name\", "
+  "\"toolchain_version_epoch\", "
+  "\"toolchain_version_canonical_upstream\", "
+  "\"toolchain_version_canonical_release\", "
+  "\"toolchain_version_revision\", "
+  "\"index\", "
+  "\"operation\", "
+  "\"status\", "
+  "\"log\") "
+  "VALUES "
+  "($1, $2::CITEXT, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16)";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  delete_statement[] =
+  "DELETE FROM \"build_results\" "
+  "WHERE \"package_tenant\"=$1 AND \"package_name\"=$2::CITEXT AND \"package_version_epoch\"=$3 AND \"package_version_canonical_upstream\"=$4 AND \"package_version_canonical_release\"=$5 AND \"package_version_revision\"=$6 AND \"configuration\"=$7 AND \"toolchain_name\"=$8 AND \"toolchain_version_epoch\"=$9 AND \"toolchain_version_canonical_upstream\"=$10 AND \"toolchain_version_canonical_release\"=$11 AND \"toolchain_version_revision\"=$12";
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  bind (pgsql::bind* b,
+        const pgsql::bind* id,
+        std::size_t id_size,
+        data_image_type& d)
+  {
+    using namespace pgsql;
+
+    statement_kind sk (statement_select);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    size_t n (0);
+
+    // object_id
+    //
+    if (id != 0)
+      std::memcpy (&b[n], id, id_size * sizeof (id[0]));
+    n += id_size;
+
+    // index
+    //
+    b[n].type = pgsql::bind::bigint;
+    b[n].buffer = &d.index_value;
+    b[n].is_null = &d.index_null;
+    n++;
+
+    // value
+    //
+    composite_value_traits< value_type, id_pgsql >::bind (
+      b + n, d.value_value, sk);
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  grow (data_image_type& i,
+        bool* t)
+  {
+    bool grew (false);
+
+    // index
+    //
+    t[0UL] = 0;
+
+    // value
+    //
+    if (composite_value_traits< value_type, id_pgsql >::grow (
+          i.value_value, t + 1UL))
+      grew = true;
+
+    if (grew)
+      i.version++;
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  init (data_image_type& i,
+        index_type* j,
+        const value_type& v)
+  {
+    using namespace pgsql;
+
+    statement_kind sk (statement_insert);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    bool grew (false);
+
+    // index
+    //
+    if (j != 0)
+    {
+      bool is_null (false);
+      pgsql::value_traits<
+          index_type,
+          pgsql::id_bigint >::set_image (
+        i.index_value, is_null, *j);
+      i.index_null = is_null;
+    }
+
+    // value
+    //
+    {
+      if (composite_value_traits< value_type, id_pgsql >::init (
+            i.value_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    if (grew)
+      i.version++;
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  init (index_type& j,
+        value_type& v,
+        const data_image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // index
+    //
+    {
+      pgsql::value_traits<
+          index_type,
+          pgsql::id_bigint >::set_value (
+        j,
+        i.index_value,
+        i.index_null);
+    }
+
+    // value
+    //
+    {
+      composite_value_traits< value_type, id_pgsql >::init (
+        v,
+        i.value_value,
+        db);
+    }
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  insert (index_type i, const value_type& v, void* d)
+  {
+    using namespace pgsql;
+
+    statements_type& sts (*static_cast< statements_type* > (d));
+    data_image_type& di (sts.data_image ());
+
+    init (di, &i, v);
+
+    if (sts.data_binding_test_version ())
+    {
+      const binding& id (sts.id_binding ());
+      bind (sts.data_bind (), id.bind, id.count, di);
+      sts.data_binding_update_version ();
+    }
+
+    if (!sts.insert_statement ().execute ())
+      throw object_already_persistent ();
+  }
+
+  bool access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  select (index_type& i, value_type& v, void* d)
+  {
+    using namespace pgsql;
+    using pgsql::select_statement;
+
+    statements_type& sts (*static_cast< statements_type* > (d));
+    data_image_type& di (sts.data_image ());
+
+    init (i, v, di, &sts.connection ().database ());
+
+    select_statement& st (sts.select_statement ());
+    select_statement::result r (st.fetch ());
+
+    if (r == select_statement::truncated)
+    {
+      grow (di, sts.select_image_truncated ());
+
+      if (sts.data_binding_test_version ())
+      {
+        bind (sts.data_bind (), 0, sts.id_binding ().count, di);
+        sts.data_binding_update_version ();
+        st.refetch ();
+      }
+    }
+
+    return r != select_statement::no_data;
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  delete_ (void* d)
+  {
+    using namespace pgsql;
+
+    statements_type& sts (*static_cast< statements_type* > (d));
+    sts.delete_statement ().execute ();
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  persist (const container_type& c,
+           statements_type& sts)
+  {
+    using namespace pgsql;
+
+    functions_type& fs (sts.functions ());
+    fs.ordered_ = true;
+    container_traits_type::persist (c, fs);
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  load (container_type& c,
+        statements_type& sts)
+  {
+    using namespace pgsql;
+    using pgsql::select_statement;
+
+    const binding& id (sts.id_binding ());
+
+    if (sts.data_binding_test_version ())
+    {
+      bind (sts.data_bind (), id.bind, id.count, sts.data_image ());
+      sts.data_binding_update_version ();
+    }
+
+    select_statement& st (sts.select_statement ());
+    st.execute ();
+    auto_result ar (st);
+    select_statement::result r (st.fetch ());
+
+    if (r == select_statement::truncated)
+    {
+      data_image_type& di (sts.data_image ());
+      grow (di, sts.select_image_truncated ());
+
+      if (sts.data_binding_test_version ())
+      {
+        bind (sts.data_bind (), 0, id.count, di);
+        sts.data_binding_update_version ();
+        st.refetch ();
+      }
+    }
+
+    bool more (r != select_statement::no_data);
+
+    functions_type& fs (sts.functions ());
+    fs.ordered_ = true;
+    container_traits_type::load (c, more, fs);
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  update (const container_type& c,
+          statements_type& sts)
+  {
+    using namespace pgsql;
+
+    functions_type& fs (sts.functions ());
+    fs.ordered_ = true;
+    container_traits_type::update (c, fs);
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::results_traits::
+  erase (statements_type& sts)
+  {
+    using namespace pgsql;
+
+    functions_type& fs (sts.functions ());
+    fs.ordered_ = true;
+    container_traits_type::erase (fs);
+  }
+
+  // results_section
+  //
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::results_section_traits::
+  load (extra_statement_cache_type& esc, object_type& obj)
+  {
+    // results
+    //
+    {
+      ::bbot::operation_results& v =
+        obj.results;
+
+      results_traits::load (
+        v,
+        esc.results);
+    }
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::results_section_traits::
+  update (extra_statement_cache_type& esc, const object_type& obj)
+  {
+    // results
+    //
+    {
+      ::bbot::operation_results const& v =
+        obj.results;
+
+      results_traits::update (
+        v,
+        esc.results);
+    }
+  }
+
+  access::object_traits_impl< ::brep::build, id_pgsql >::id_type
+  access::object_traits_impl< ::brep::build, id_pgsql >::
+  id (const image_type& i)
+  {
+    pgsql::database* db (0);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    id_type id;
+    {
+      composite_value_traits< ::brep::build_id, id_pgsql >::init (
+        id,
+        i.id_value,
+        db);
+    }
+
+    return id;
+  }
+
+  bool access::object_traits_impl< ::brep::build, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // id
+    //
+    if (composite_value_traits< ::brep::build_id, id_pgsql >::grow (
+          i.id_value, t + 0UL))
+      grew = true;
+
+    // package_version
+    //
+    if (composite_value_traits< ::brep::upstream_version, id_pgsql >::grow (
+          i.package_version_value, t + 12UL))
+      grew = true;
+
+    // toolchain_version
+    //
+    if (composite_value_traits< ::brep::upstream_version, id_pgsql >::grow (
+          i.toolchain_version_value, t + 14UL))
+      grew = true;
+
+    // state
+    //
+    if (t[16UL])
+    {
+      i.state_value.capacity (i.state_size);
+      grew = true;
+    }
+
+    // timestamp
+    //
+    t[17UL] = 0;
+
+    // force
+    //
+    if (t[18UL])
+    {
+      i.force_value.capacity (i.force_size);
+      grew = true;
+    }
+
+    // status
+    //
+    if (t[19UL])
+    {
+      i.status_value.capacity (i.status_size);
+      grew = true;
+    }
+
+    // completion_timestamp
+    //
+    t[20UL] = 0;
+
+    // agent_fingerprint
+    //
+    if (t[21UL])
+    {
+      i.agent_fingerprint_value.capacity (i.agent_fingerprint_size);
+      grew = true;
+    }
+
+    // agent_challenge
+    //
+    if (t[22UL])
+    {
+      i.agent_challenge_value.capacity (i.agent_challenge_size);
+      grew = true;
+    }
+
+    // machine
+    //
+    if (t[23UL])
+    {
+      i.machine_value.capacity (i.machine_size);
+      grew = true;
+    }
+
+    // machine_summary
+    //
+    if (t[24UL])
+    {
+      i.machine_summary_value.capacity (i.machine_summary_size);
+      grew = true;
+    }
+
+    // target
+    //
+    if (t[25UL])
+    {
+      i.target_value.capacity (i.target_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+
+    // id
+    //
+    if (sk != statement_update)
+    {
+      composite_value_traits< ::brep::build_id, id_pgsql >::bind (
+        b + n, i.id_value, sk);
+      n += 12UL;
+    }
+
+    // package_version
+    //
+    composite_value_traits< ::brep::upstream_version, id_pgsql >::bind (
+      b + n, i.package_version_value, sk);
+    n += 2UL;
+
+    // toolchain_version
+    //
+    composite_value_traits< ::brep::upstream_version, id_pgsql >::bind (
+      b + n, i.toolchain_version_value, sk);
+    n += 2UL;
+
+    // state
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.state_value.data ();
+    b[n].capacity = i.state_value.capacity ();
+    b[n].size = &i.state_size;
+    b[n].is_null = &i.state_null;
+    n++;
+
+    // timestamp
+    //
+    b[n].type = pgsql::bind::bigint;
+    b[n].buffer = &i.timestamp_value;
+    b[n].is_null = &i.timestamp_null;
+    n++;
+
+    // force
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.force_value.data ();
+    b[n].capacity = i.force_value.capacity ();
+    b[n].size = &i.force_size;
+    b[n].is_null = &i.force_null;
+    n++;
+
+    // status
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.status_value.data ();
+    b[n].capacity = i.status_value.capacity ();
+    b[n].size = &i.status_size;
+    b[n].is_null = &i.status_null;
+    n++;
+
+    // completion_timestamp
+    //
+    b[n].type = pgsql::bind::bigint;
+    b[n].buffer = &i.completion_timestamp_value;
+    b[n].is_null = &i.completion_timestamp_null;
+    n++;
+
+    // agent_fingerprint
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.agent_fingerprint_value.data ();
+    b[n].capacity = i.agent_fingerprint_value.capacity ();
+    b[n].size = &i.agent_fingerprint_size;
+    b[n].is_null = &i.agent_fingerprint_null;
+    n++;
+
+    // agent_challenge
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.agent_challenge_value.data ();
+    b[n].capacity = i.agent_challenge_value.capacity ();
+    b[n].size = &i.agent_challenge_size;
+    b[n].is_null = &i.agent_challenge_null;
+    n++;
+
+    // machine
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.machine_value.data ();
+    b[n].capacity = i.machine_value.capacity ();
+    b[n].size = &i.machine_size;
+    b[n].is_null = &i.machine_null;
+    n++;
+
+    // machine_summary
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.machine_summary_value.data ();
+    b[n].capacity = i.machine_summary_value.capacity ();
+    b[n].size = &i.machine_summary_size;
+    b[n].is_null = &i.machine_summary_null;
+    n++;
+
+    // target
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.target_value.data ();
+    b[n].capacity = i.target_value.capacity ();
+    b[n].size = &i.target_size;
+    b[n].is_null = &i.target_null;
+    n++;
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::
+  bind (pgsql::bind* b, id_image_type& i)
+  {
+    std::size_t n (0);
+    pgsql::statement_kind sk (pgsql::statement_select);
+    composite_value_traits< ::brep::build_id, id_pgsql >::bind (
+      b + n, i.id_value, sk);
+  }
+
+  bool access::object_traits_impl< ::brep::build, id_pgsql >::
+  init (image_type& i,
+        const object_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // id
+    //
+    if (sk == statement_insert)
+    {
+      ::brep::build_id const& v =
+        o.id;
+
+      if (composite_value_traits< ::brep::build_id, id_pgsql >::init (
+            i.id_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    // package_version
+    //
+    {
+      ::brep::upstream_version const& v =
+        o.package_version;
+
+      if (composite_value_traits< ::brep::upstream_version, id_pgsql >::init (
+            i.package_version_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    // toolchain_version
+    //
+    {
+      ::brep::upstream_version const& v =
+        o.toolchain_version;
+
+      if (composite_value_traits< ::brep::upstream_version, id_pgsql >::init (
+            i.toolchain_version_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    // state
+    //
+    {
+      ::brep::build_state const& v =
+        o.state;
+
+      // From build.hxx:122:14
+      ::std::string const& vt =
+        to_string (v);
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.state_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.state_value,
+        size,
+        is_null,
+        vt);
+      i.state_null = is_null;
+      i.state_size = size;
+      grew = grew || (cap != i.state_value.capacity ());
+    }
+
+    // timestamp
+    //
+    {
+      ::brep::build::timestamp_type const& v =
+        o.timestamp;
+
+      // From common.hxx:119:14
+      ::uint64_t const& vt =
+        std::chrono::duration_cast < std::chrono::nanoseconds > ((v).time_since_epoch ()).count ();
+
+      bool is_null (false);
+      pgsql::value_traits<
+          ::uint64_t,
+          pgsql::id_bigint >::set_image (
+        i.timestamp_value, is_null, vt);
+      i.timestamp_null = is_null;
+    }
+
+    // force
+    //
+    {
+      ::brep::force_state const& v =
+        o.force;
+
+      // From build.hxx:144:14
+      ::std::string const& vt =
+        to_string (v);
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.force_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.force_value,
+        size,
+        is_null,
+        vt);
+      i.force_null = is_null;
+      i.force_size = size;
+      grew = grew || (cap != i.force_value.capacity ());
+    }
+
+    // status
+    //
+    {
+      ::butl::optional< ::bbot::result_status > const& v =
+        o.status;
+
+      // From build.hxx:154:14
+      ::brep::optional_string const& vt =
+        (v) ? bbot::to_string ( * (v)) : brep::optional_string ();
+
+      bool is_null (true);
+      std::size_t size (0);
+      std::size_t cap (i.status_value.capacity ());
+      pgsql::value_traits<
+          ::brep::optional_string,
+          pgsql::id_string >::set_image (
+        i.status_value,
+        size,
+        is_null,
+        vt);
+      i.status_null = is_null;
+      i.status_size = size;
+      grew = grew || (cap != i.status_value.capacity ());
+    }
+
+    // completion_timestamp
+    //
+    {
+      ::brep::build::timestamp_type const& v =
+        o.completion_timestamp;
+
+      // From common.hxx:119:14
+      ::uint64_t const& vt =
+        std::chrono::duration_cast < std::chrono::nanoseconds > ((v).time_since_epoch ()).count ();
+
+      bool is_null (false);
+      pgsql::value_traits<
+          ::uint64_t,
+          pgsql::id_bigint >::set_image (
+        i.completion_timestamp_value, is_null, vt);
+      i.completion_timestamp_null = is_null;
+    }
+
+    // agent_fingerprint
+    //
+    {
+      ::butl::optional< ::std::basic_string< char > > const& v =
+        o.agent_fingerprint;
+
+      bool is_null (true);
+      std::size_t size (0);
+      std::size_t cap (i.agent_fingerprint_value.capacity ());
+      pgsql::value_traits<
+          ::butl::optional< ::std::basic_string< char > >,
+          pgsql::id_string >::set_image (
+        i.agent_fingerprint_value,
+        size,
+        is_null,
+        v);
+      i.agent_fingerprint_null = is_null;
+      i.agent_fingerprint_size = size;
+      grew = grew || (cap != i.agent_fingerprint_value.capacity ());
+    }
+
+    // agent_challenge
+    //
+    {
+      ::butl::optional< ::std::basic_string< char > > const& v =
+        o.agent_challenge;
+
+      bool is_null (true);
+      std::size_t size (0);
+      std::size_t cap (i.agent_challenge_value.capacity ());
+      pgsql::value_traits<
+          ::butl::optional< ::std::basic_string< char > >,
+          pgsql::id_string >::set_image (
+        i.agent_challenge_value,
+        size,
+        is_null,
+        v);
+      i.agent_challenge_null = is_null;
+      i.agent_challenge_size = size;
+      grew = grew || (cap != i.agent_challenge_value.capacity ());
+    }
+
+    // machine
+    //
+    {
+      ::std::string const& v =
+        o.machine;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.machine_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.machine_value,
+        size,
+        is_null,
+        v);
+      i.machine_null = is_null;
+      i.machine_size = size;
+      grew = grew || (cap != i.machine_value.capacity ());
+    }
+
+    // machine_summary
+    //
+    {
+      ::std::string const& v =
+        o.machine_summary;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.machine_summary_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.machine_summary_value,
+        size,
+        is_null,
+        v);
+      i.machine_summary_null = is_null;
+      i.machine_summary_size = size;
+      grew = grew || (cap != i.machine_summary_value.capacity ());
+    }
+
+    // target
+    //
+    {
+      ::butl::target_triplet const& v =
+        o.target;
+
+      // From build.hxx:162:14
+      ::std::string const& vt =
+        (v).string ();
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.target_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.target_value,
+        size,
+        is_null,
+        vt);
+      i.target_null = is_null;
+      i.target_size = size;
+      grew = grew || (cap != i.target_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::
+  init (object_type& o,
+        const image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // id
+    //
+    {
+      ::brep::build_id& v =
+        o.id;
+
+      composite_value_traits< ::brep::build_id, id_pgsql >::init (
+        v,
+        i.id_value,
+        db);
+    }
+
+    // package_version
+    //
+    {
+      // From build.hxx:247:7
+      ::brep::upstream_version v;
+
+      composite_value_traits< ::brep::upstream_version, id_pgsql >::init (
+        v,
+        i.package_version_value,
+        db);
+
+      // From build.hxx:247:7
+      o.package_version.init (o.id.package.version, (v));
+    }
+
+    // toolchain_version
+    //
+    {
+      // From build.hxx:251:7
+      ::brep::upstream_version v;
+
+      composite_value_traits< ::brep::upstream_version, id_pgsql >::init (
+        v,
+        i.toolchain_version_value,
+        db);
+
+      // From build.hxx:251:7
+      o.toolchain_version.init (o.id.toolchain_version, (v));
+    }
+
+    // state
+    //
+    {
+      ::brep::build_state& v =
+        o.state;
+
+      ::std::string vt;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        vt,
+        i.state_value,
+        i.state_size,
+        i.state_null);
+
+      // From build.hxx:122:14
+      v = brep::to_build_state (vt);
+    }
+
+    // timestamp
+    //
+    {
+      ::brep::build::timestamp_type& v =
+        o.timestamp;
+
+      ::uint64_t vt;
+
+      pgsql::value_traits<
+          ::uint64_t,
+          pgsql::id_bigint >::set_value (
+        vt,
+        i.timestamp_value,
+        i.timestamp_null);
+
+      // From common.hxx:119:14
+      v = brep::timestamp (std::chrono::duration_cast < brep::timestamp::duration > (std::chrono::nanoseconds (vt)));
+    }
+
+    // force
+    //
+    {
+      ::brep::force_state& v =
+        o.force;
+
+      ::std::string vt;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        vt,
+        i.force_value,
+        i.force_size,
+        i.force_null);
+
+      // From build.hxx:144:14
+      v = brep::to_force_state (vt);
+    }
+
+    // status
+    //
+    {
+      ::butl::optional< ::bbot::result_status >& v =
+        o.status;
+
+      ::brep::optional_string vt;
+
+      pgsql::value_traits<
+          ::brep::optional_string,
+          pgsql::id_string >::set_value (
+        vt,
+        i.status_value,
+        i.status_size,
+        i.status_null);
+
+      // From build.hxx:154:14
+      v = (vt) ? bbot::to_result_status ( * (vt)) : brep::optional_result_status ();
+    }
+
+    // completion_timestamp
+    //
+    {
+      ::brep::build::timestamp_type& v =
+        o.completion_timestamp;
+
+      ::uint64_t vt;
+
+      pgsql::value_traits<
+          ::uint64_t,
+          pgsql::id_bigint >::set_value (
+        vt,
+        i.completion_timestamp_value,
+        i.completion_timestamp_null);
+
+      // From common.hxx:119:14
+      v = brep::timestamp (std::chrono::duration_cast < brep::timestamp::duration > (std::chrono::nanoseconds (vt)));
+    }
+
+    // agent_fingerprint
+    //
+    {
+      ::butl::optional< ::std::basic_string< char > >& v =
+        o.agent_fingerprint;
+
+      pgsql::value_traits<
+          ::butl::optional< ::std::basic_string< char > >,
+          pgsql::id_string >::set_value (
+        v,
+        i.agent_fingerprint_value,
+        i.agent_fingerprint_size,
+        i.agent_fingerprint_null);
+    }
+
+    // agent_challenge
+    //
+    {
+      ::butl::optional< ::std::basic_string< char > >& v =
+        o.agent_challenge;
+
+      pgsql::value_traits<
+          ::butl::optional< ::std::basic_string< char > >,
+          pgsql::id_string >::set_value (
+        v,
+        i.agent_challenge_value,
+        i.agent_challenge_size,
+        i.agent_challenge_null);
+    }
+
+    // machine
+    //
+    {
+      ::std::string& v =
+        o.machine;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.machine_value,
+        i.machine_size,
+        i.machine_null);
+    }
+
+    // machine_summary
+    //
+    {
+      ::std::string& v =
+        o.machine_summary;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.machine_summary_value,
+        i.machine_summary_size,
+        i.machine_summary_null);
+    }
+
+    // target
+    //
+    {
+      ::butl::target_triplet& v =
+        o.target;
+
+      ::std::string vt;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        vt,
+        i.target_value,
+        i.target_size,
+        i.target_null);
+
+      // From build.hxx:162:14
+      v = butl::target_triplet (vt);
+    }
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::
+  init (id_image_type& i, const id_type& id)
+  {
+    bool grew (false);
+    pgsql::statement_kind sk (pgsql::statement_select);
+    {
+      if (composite_value_traits< ::brep::build_id, id_pgsql >::init (
+            i.id_value,
+            id,
+            sk))
+        grew = true;
+    }
+
+    if (grew)
+      i.version++;
+  }
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::persist_statement[] =
+  "INSERT INTO \"build\" "
+  "(\"package_tenant\", "
+  "\"package_name\", "
+  "\"package_version_epoch\", "
+  "\"package_version_canonical_upstream\", "
+  "\"package_version_canonical_release\", "
+  "\"package_version_revision\", "
+  "\"configuration\", "
+  "\"toolchain_name\", "
+  "\"toolchain_version_epoch\", "
+  "\"toolchain_version_canonical_upstream\", "
+  "\"toolchain_version_canonical_release\", "
+  "\"toolchain_version_revision\", "
+  "\"package_version_upstream\", "
+  "\"package_version_release\", "
+  "\"toolchain_version_upstream\", "
+  "\"toolchain_version_release\", "
+  "\"state\", "
+  "\"timestamp\", "
+  "\"force\", "
+  "\"status\", "
+  "\"completion_timestamp\", "
+  "\"agent_fingerprint\", "
+  "\"agent_challenge\", "
+  "\"machine\", "
+  "\"machine_summary\", "
+  "\"target\") "
+  "VALUES "
+  "($1, $2::CITEXT, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20, $21, $22, $23, $24, $25, $26)";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::find_statement[] =
+  "SELECT "
+  "\"build\".\"package_tenant\", "
+  "\"build\".\"package_name\"::TEXT, "
+  "\"build\".\"package_version_epoch\", "
+  "\"build\".\"package_version_canonical_upstream\", "
+  "\"build\".\"package_version_canonical_release\", "
+  "\"build\".\"package_version_revision\", "
+  "\"build\".\"configuration\", "
+  "\"build\".\"toolchain_name\", "
+  "\"build\".\"toolchain_version_epoch\", "
+  "\"build\".\"toolchain_version_canonical_upstream\", "
+  "\"build\".\"toolchain_version_canonical_release\", "
+  "\"build\".\"toolchain_version_revision\", "
+  "\"build\".\"package_version_upstream\", "
+  "\"build\".\"package_version_release\", "
+  "\"build\".\"toolchain_version_upstream\", "
+  "\"build\".\"toolchain_version_release\", "
+  "\"build\".\"state\", "
+  "\"build\".\"timestamp\", "
+  "\"build\".\"force\", "
+  "\"build\".\"status\", "
+  "\"build\".\"completion_timestamp\", "
+  "\"build\".\"agent_fingerprint\", "
+  "\"build\".\"agent_challenge\", "
+  "\"build\".\"machine\", "
+  "\"build\".\"machine_summary\", "
+  "\"build\".\"target\" "
+  "FROM \"build\" "
+  "WHERE \"build\".\"package_tenant\"=$1 AND \"build\".\"package_name\"=$2::CITEXT AND \"build\".\"package_version_epoch\"=$3 AND \"build\".\"package_version_canonical_upstream\"=$4 AND \"build\".\"package_version_canonical_release\"=$5 AND \"build\".\"package_version_revision\"=$6 AND \"build\".\"configuration\"=$7 AND \"build\".\"toolchain_name\"=$8 AND \"build\".\"toolchain_version_epoch\"=$9 AND \"build\".\"toolchain_version_canonical_upstream\"=$10 AND \"build\".\"toolchain_version_canonical_release\"=$11 AND \"build\".\"toolchain_version_revision\"=$12";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::update_statement[] =
+  "UPDATE \"build\" "
+  "SET "
+  "\"package_version_upstream\"=$1, "
+  "\"package_version_release\"=$2, "
+  "\"toolchain_version_upstream\"=$3, "
+  "\"toolchain_version_release\"=$4, "
+  "\"state\"=$5, "
+  "\"timestamp\"=$6, "
+  "\"force\"=$7, "
+  "\"status\"=$8, "
+  "\"completion_timestamp\"=$9, "
+  "\"agent_fingerprint\"=$10, "
+  "\"agent_challenge\"=$11, "
+  "\"machine\"=$12, "
+  "\"machine_summary\"=$13, "
+  "\"target\"=$14 "
+  "WHERE \"package_tenant\"=$15 AND \"package_name\"=$16::CITEXT AND \"package_version_epoch\"=$17 AND \"package_version_canonical_upstream\"=$18 AND \"package_version_canonical_release\"=$19 AND \"package_version_revision\"=$20 AND \"configuration\"=$21 AND \"toolchain_name\"=$22 AND \"toolchain_version_epoch\"=$23 AND \"toolchain_version_canonical_upstream\"=$24 AND \"toolchain_version_canonical_release\"=$25 AND \"toolchain_version_revision\"=$26";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::erase_statement[] =
+  "DELETE FROM \"build\" "
+  "WHERE \"package_tenant\"=$1 AND \"package_name\"=$2::CITEXT AND \"package_version_epoch\"=$3 AND \"package_version_canonical_upstream\"=$4 AND \"package_version_canonical_release\"=$5 AND \"package_version_revision\"=$6 AND \"configuration\"=$7 AND \"toolchain_name\"=$8 AND \"toolchain_version_epoch\"=$9 AND \"toolchain_version_canonical_upstream\"=$10 AND \"toolchain_version_canonical_release\"=$11 AND \"toolchain_version_revision\"=$12";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::query_statement[] =
+  "SELECT "
+  "\"build\".\"package_tenant\", "
+  "\"build\".\"package_name\"::TEXT, "
+  "\"build\".\"package_version_epoch\", "
+  "\"build\".\"package_version_canonical_upstream\", "
+  "\"build\".\"package_version_canonical_release\", "
+  "\"build\".\"package_version_revision\", "
+  "\"build\".\"configuration\", "
+  "\"build\".\"toolchain_name\", "
+  "\"build\".\"toolchain_version_epoch\", "
+  "\"build\".\"toolchain_version_canonical_upstream\", "
+  "\"build\".\"toolchain_version_canonical_release\", "
+  "\"build\".\"toolchain_version_revision\", "
+  "\"build\".\"package_version_upstream\", "
+  "\"build\".\"package_version_release\", "
+  "\"build\".\"toolchain_version_upstream\", "
+  "\"build\".\"toolchain_version_release\", "
+  "\"build\".\"state\", "
+  "\"build\".\"timestamp\", "
+  "\"build\".\"force\", "
+  "\"build\".\"status\", "
+  "\"build\".\"completion_timestamp\", "
+  "\"build\".\"agent_fingerprint\", "
+  "\"build\".\"agent_challenge\", "
+  "\"build\".\"machine\", "
+  "\"build\".\"machine_summary\", "
+  "\"build\".\"target\" "
+  "FROM \"build\"";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::erase_query_statement[] =
+  "DELETE FROM \"build\"";
+
+  const char access::object_traits_impl< ::brep::build, id_pgsql >::table_name[] =
+  "\"build\"";
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::
+  persist (database& db, const object_type& obj)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    callback (db,
+              obj,
+              callback_event::pre_persist);
+
+    image_type& im (sts.image ());
+    binding& imb (sts.insert_image_binding ());
+
+    if (init (im, obj, statement_insert))
+      im.version++;
+
+    if (im.version != sts.insert_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_insert);
+      sts.insert_image_version (im.version);
+      imb.version++;
+    }
+
+    insert_statement& st (sts.persist_statement ());
+    if (!st.execute ())
+      throw object_already_persistent ();
+
+    id_image_type& i (sts.id_image ());
+    init (i, id (obj));
+
+    binding& idb (sts.id_image_binding ());
+    if (i.version != sts.id_image_version () || idb.version == 0)
+    {
+      bind (idb.bind, i);
+      sts.id_image_version (i.version);
+      idb.version++;
+    }
+
+    extra_statement_cache_type& esc (sts.extra_statement_cache ());
+
+    // results
+    //
+    {
+      ::bbot::operation_results const& v =
+        obj.results;
+
+      results_traits::persist (
+        v,
+        esc.results);
+    }
+
+    obj.results_section.reset (true, false);
+
+    callback (db,
+              obj,
+              callback_event::post_persist);
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::
+  update (database& db, const object_type& obj)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+
+    using namespace pgsql;
+    using pgsql::update_statement;
+
+    callback (db, obj, callback_event::pre_update);
+
+    pgsql::transaction& tr (pgsql::transaction::current ());
+    pgsql::connection& conn (tr.connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    id_image_type& idi (sts.id_image ());
+    init (idi, id (obj));
+
+    image_type& im (sts.image ());
+    if (init (im, obj, statement_update))
+      im.version++;
+
+    bool u (false);
+    binding& imb (sts.update_image_binding ());
+    if (im.version != sts.update_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_update);
+      sts.update_image_version (im.version);
+      imb.version++;
+      u = true;
+    }
+
+    binding& idb (sts.id_image_binding ());
+    if (idi.version != sts.update_id_image_version () ||
+        idb.version == 0)
+    {
+      if (idi.version != sts.id_image_version () ||
+          idb.version == 0)
+      {
+        bind (idb.bind, idi);
+        sts.id_image_version (idi.version);
+        idb.version++;
+      }
+
+      sts.update_id_image_version (idi.version);
+
+      if (!u)
+        imb.version++;
+    }
+
+    update_statement& st (sts.update_statement ());
+    if (st.execute () == 0)
+      throw object_not_persistent ();
+
+    extra_statement_cache_type& esc (sts.extra_statement_cache ());
+
+    if (obj.results_section.loaded ())
+    {
+      results_section_traits::update (esc, obj);
+    }
+
+    callback (db, obj, callback_event::post_update);
+    pointer_cache_traits::update (db, obj);
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::
+  erase (database& db, const id_type& id)
+  {
+    using namespace pgsql;
+
+    ODB_POTENTIALLY_UNUSED (db);
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    id_image_type& i (sts.id_image ());
+    init (i, id);
+
+    binding& idb (sts.id_image_binding ());
+    if (i.version != sts.id_image_version () || idb.version == 0)
+    {
+      bind (idb.bind, i);
+      sts.id_image_version (i.version);
+      idb.version++;
+    }
+
+    extra_statement_cache_type& esc (sts.extra_statement_cache ());
+
+    // results
+    //
+    {
+      results_traits::erase (
+        esc.results);
+    }
+
+    if (sts.erase_statement ().execute () != 1)
+      throw object_not_persistent ();
+
+    pointer_cache_traits::erase (db, id);
+  }
+
+  access::object_traits_impl< ::brep::build, id_pgsql >::pointer_type
+  access::object_traits_impl< ::brep::build, id_pgsql >::
+  find (database& db, const id_type& id)
+  {
+    using namespace pgsql;
+
+    {
+      pointer_type p (pointer_cache_traits::find (db, id));
+
+      if (!pointer_traits::null_ptr (p))
+        return p;
+    }
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+
+    if (l.locked ())
+    {
+      if (!find_ (sts, &id))
+        return pointer_type ();
+    }
+
+    pointer_type p (
+      access::object_factory<object_type, pointer_type>::create ());
+    pointer_traits::guard pg (p);
+
+    pointer_cache_traits::insert_guard ig (
+      pointer_cache_traits::insert (db, id, p));
+
+    object_type& obj (pointer_traits::get_ref (p));
+
+    if (l.locked ())
+    {
+      select_statement& st (sts.find_statement ());
+      ODB_POTENTIALLY_UNUSED (st);
+
+      callback (db, obj, callback_event::pre_load);
+      init (obj, sts.image (), &db);
+      load_ (sts, obj, false);
+      sts.load_delayed (0);
+      l.unlock ();
+      callback (db, obj, callback_event::post_load);
+      pointer_cache_traits::load (ig.position ());
+    }
+    else
+      sts.delay_load (id, obj, ig.position ());
+
+    ig.release ();
+    pg.release ();
+    return p;
+  }
+
+  bool access::object_traits_impl< ::brep::build, id_pgsql >::
+  find (database& db, const id_type& id, object_type& obj)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+    assert (l.locked ()) /* Must be a top-level call. */;
+
+    if (!find_ (sts, &id))
+      return false;
+
+    select_statement& st (sts.find_statement ());
+    ODB_POTENTIALLY_UNUSED (st);
+
+    reference_cache_traits::position_type pos (
+      reference_cache_traits::insert (db, id, obj));
+    reference_cache_traits::insert_guard ig (pos);
+
+    callback (db, obj, callback_event::pre_load);
+    init (obj, sts.image (), &db);
+    load_ (sts, obj, false);
+    sts.load_delayed (0);
+    l.unlock ();
+    callback (db, obj, callback_event::post_load);
+    reference_cache_traits::load (pos);
+    ig.release ();
+    return true;
+  }
+
+  bool access::object_traits_impl< ::brep::build, id_pgsql >::
+  reload (database& db, object_type& obj)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+    assert (l.locked ()) /* Must be a top-level call. */;
+
+    const id_type& id (object_traits_impl::id (obj));
+    if (!find_ (sts, &id))
+      return false;
+
+    select_statement& st (sts.find_statement ());
+    ODB_POTENTIALLY_UNUSED (st);
+
+    callback (db, obj, callback_event::pre_load);
+    init (obj, sts.image (), &db);
+    load_ (sts, obj, true);
+    sts.load_delayed (0);
+    l.unlock ();
+    callback (db, obj, callback_event::post_load);
+    return true;
+  }
+
+  bool access::object_traits_impl< ::brep::build, id_pgsql >::
+  load (connection& conn, object_type& obj, section& s)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& c (static_cast<pgsql::connection&> (conn));
+    statements_type& sts (c.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+    assert (l.locked ()) /* Must be a top-level call. */;
+
+    bool r (false);
+
+    id_image_type& i (sts.id_image ());
+    init (i, id (obj));
+
+    binding& idb (sts.id_image_binding ());
+    if (i.version != sts.id_image_version () || idb.version == 0)
+    {
+      bind (idb.bind, i);
+      sts.id_image_version (i.version);
+      idb.version++;
+    }
+
+    extra_statement_cache_type& esc (sts.extra_statement_cache ());
+
+    if (!r && &s == &obj.results_section)
+    {
+      results_section_traits::load (esc, obj);
+      r = true;
+    }
+
+    sts.load_delayed (0);
+    l.unlock ();
+    return r;
+  }
+
+  bool access::object_traits_impl< ::brep::build, id_pgsql >::
+  update (connection& conn, const object_type& obj, const section& s)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& c (static_cast<pgsql::connection&> (conn));
+    statements_type& sts (c.statement_cache ().find_object<object_type> ());
+    extra_statement_cache_type& esc (sts.extra_statement_cache ());
+
+    id_image_type& i (sts.id_image ());
+    init (i, id (obj));
+
+    binding& idb (sts.id_image_binding ());
+    if (i.version != sts.id_image_version () || idb.version == 0)
+    {
+      bind (idb.bind, i);
+      sts.id_image_version (i.version);
+      idb.version++;
+    }
+
+    if (&s == &obj.results_section)results_section_traits::update (esc, obj);
+    else
+      return false;
+
+    return true;
+  }
+
+  bool access::object_traits_impl< ::brep::build, id_pgsql >::
+  find_ (statements_type& sts,
+         const id_type* id)
+  {
+    using namespace pgsql;
+
+    id_image_type& i (sts.id_image ());
+    init (i, *id);
+
+    binding& idb (sts.id_image_binding ());
+    if (i.version != sts.id_image_version () || idb.version == 0)
+    {
+      bind (idb.bind, i);
+      sts.id_image_version (i.version);
+      idb.version++;
+    }
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    select_statement& st (sts.find_statement ());
+
+    st.execute ();
+    auto_result ar (st);
+    select_statement::result r (st.fetch ());
+
+    if (r == select_statement::truncated)
+    {
+      if (grow (im, sts.select_image_truncated ()))
+        im.version++;
+
+      if (im.version != sts.select_image_version ())
+      {
+        bind (imb.bind, im, statement_select);
+        sts.select_image_version (im.version);
+        imb.version++;
+        st.refetch ();
+      }
+    }
+
+    return r != select_statement::no_data;
+  }
+
+  void access::object_traits_impl< ::brep::build, id_pgsql >::
+  load_ (statements_type& sts,
+         object_type& obj,
+         bool reload)
+  {
+    ODB_POTENTIALLY_UNUSED (reload);
+
+    extra_statement_cache_type& esc (sts.extra_statement_cache ());
+
+    if (reload)
+    {
+      if (obj.results_section.loaded ())
+      {
+        results_section_traits::load (esc, obj);
+        obj.results_section.reset (true, false);
+      }
+    }
+    else
+      obj.results_section.reset ();
+  }
+
+  result< access::object_traits_impl< ::brep::build, id_pgsql >::object_type >
+  access::object_traits_impl< ::brep::build, id_pgsql >::
+  query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    std::string text (query_statement);
+    if (!q.empty ())
+    {
+      text += " ";
+      text += q.clause ();
+    }
+
+    q.init_parameters ();
+    shared_ptr<select_statement> st (
+      new (shared) select_statement (
+        sts.connection (),
+        query_statement_name,
+        text,
+        false,
+        true,
+        q.parameter_types (),
+        q.parameter_count (),
+        q.parameters_binding (),
+        imb));
+
+    st->execute ();
+    st->deallocate ();
+
+    shared_ptr< odb::object_result_impl<object_type> > r (
+      new (shared) pgsql::object_result_impl<object_type> (
+        q, st, sts, 0));
+
+    return result<object_type> (r);
+  }
+
+  unsigned long long access::object_traits_impl< ::brep::build, id_pgsql >::
+  erase_query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    std::string text (erase_query_statement);
+    if (!q.empty ())
+    {
+      text += ' ';
+      text += q.clause ();
+    }
+
+    q.init_parameters ();
+    delete_statement st (
+      conn,
+      erase_query_statement_name,
+      text,
+      q.parameter_types (),
+      q.parameter_count (),
+      q.parameters_binding ());
+
+    return st.execute ();
+  }
+
+  odb::details::shared_ptr<prepared_query_impl>
+  access::object_traits_impl< ::brep::build, id_pgsql >::
+  prepare_query (connection& c, const char* n, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      static_cast<pgsql::connection&> (c));
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    std::string text (query_statement);
+    if (!q.empty ())
+    {
+      text += " ";
+      text += q.clause ();
+    }
+
+    shared_ptr<pgsql::prepared_query_impl> r (
+      new (shared) pgsql::prepared_query_impl (conn));
+    r->name = n;
+    r->execute = &execute_query;
+    r->query = q;
+    r->stmt.reset (
+      new (shared) select_statement (
+        sts.connection (),
+        n,
+        text,
+        false,
+        true,
+        r->query.parameter_types (),
+        r->query.parameter_count (),
+        r->query.parameters_binding (),
+        imb));
+
+    return r;
+  }
+
+  odb::details::shared_ptr<result_impl>
+  access::object_traits_impl< ::brep::build, id_pgsql >::
+  execute_query (prepared_query_impl& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::prepared_query_impl& pq (
+      static_cast<pgsql::prepared_query_impl&> (q));
+    shared_ptr<select_statement> st (
+      odb::details::inc_ref (
+        static_cast<select_statement*> (pq.stmt.get ())));
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    // The connection used by the current transaction and the
+    // one used to prepare this statement must be the same.
+    //
+    assert (&conn == &st->connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    pq.query.init_parameters ();
+    st->execute ();
+
+    return shared_ptr<result_impl> (
+      new (shared) pgsql::object_result_impl<object_type> (
+        pq.query, st, sts, 0));
+  }
+
+  // toolchain
+  //
+
+  const char access::view_traits_impl< ::brep::toolchain, id_pgsql >::
+  query_statement_name[] = "query_brep_toolchain";
+
+  bool access::view_traits_impl< ::brep::toolchain, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // name
+    //
+    if (t[0UL])
+    {
+      i.name_value.capacity (i.name_size);
+      grew = true;
+    }
+
+    // epoch
+    //
+    t[1UL] = 0;
+
+    // canonical_upstream
+    //
+    if (t[2UL])
+    {
+      i.canonical_upstream_value.capacity (i.canonical_upstream_size);
+      grew = true;
+    }
+
+    // canonical_release
+    //
+    if (t[3UL])
+    {
+      i.canonical_release_value.capacity (i.canonical_release_size);
+      grew = true;
+    }
+
+    // revision
+    //
+    t[4UL] = 0;
+
+    // version
+    //
+    if (composite_value_traits< ::brep::upstream_version, id_pgsql >::grow (
+          i.version_value, t + 5UL))
+      grew = true;
+
+    return grew;
+  }
+
+  void access::view_traits_impl< ::brep::toolchain, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i)
+  {
+    using namespace pgsql;
+
+    pgsql::statement_kind sk (statement_select);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    std::size_t n (0);
+
+    // name
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.name_value.data ();
+    b[n].capacity = i.name_value.capacity ();
+    b[n].size = &i.name_size;
+    b[n].is_null = &i.name_null;
+    n++;
+
+    // epoch
+    //
+    b[n].type = pgsql::bind::integer;
+    b[n].buffer = &i.epoch_value;
+    b[n].is_null = &i.epoch_null;
+    n++;
+
+    // canonical_upstream
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.canonical_upstream_value.data ();
+    b[n].capacity = i.canonical_upstream_value.capacity ();
+    b[n].size = &i.canonical_upstream_size;
+    b[n].is_null = &i.canonical_upstream_null;
+    n++;
+
+    // canonical_release
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.canonical_release_value.data ();
+    b[n].capacity = i.canonical_release_value.capacity ();
+    b[n].size = &i.canonical_release_size;
+    b[n].is_null = &i.canonical_release_null;
+    n++;
+
+    // revision
+    //
+    b[n].type = pgsql::bind::integer;
+    b[n].buffer = &i.revision_value;
+    b[n].is_null = &i.revision_null;
+    n++;
+
+    // version
+    //
+    composite_value_traits< ::brep::upstream_version, id_pgsql >::bind (
+      b + n, i.version_value, sk);
+    n += 2UL;
+  }
+
+  void access::view_traits_impl< ::brep::toolchain, id_pgsql >::
+  init (view_type& o,
+        const image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // name
+    //
+    {
+      ::std::string& v =
+        o.name;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.name_value,
+        i.name_size,
+        i.name_null);
+    }
+
+    // epoch
+    //
+    {
+      // From build.hxx:309:23
+      ::uint16_t& v =
+        o.version_.epoch;
+
+      pgsql::value_traits<
+          ::uint16_t,
+          pgsql::id_integer >::set_value (
+        v,
+        i.epoch_value,
+        i.epoch_null);
+    }
+
+    // canonical_upstream
+    //
+    {
+      // From build.hxx:313:23
+      ::std::string& v =
+        o.version_.canonical_upstream;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.canonical_upstream_value,
+        i.canonical_upstream_size,
+        i.canonical_upstream_null);
+    }
+
+    // canonical_release
+    //
+    {
+      // From build.hxx:317:23
+      ::std::string& v =
+        o.version_.canonical_release;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.canonical_release_value,
+        i.canonical_release_size,
+        i.canonical_release_null);
+    }
+
+    // revision
+    //
+    {
+      // From build.hxx:321:23
+      ::uint16_t& v =
+        o.version_.revision;
+
+      pgsql::value_traits<
+          ::uint16_t,
+          pgsql::id_integer >::set_value (
+        v,
+        i.revision_value,
+        i.revision_null);
+    }
+
+    // version
+    //
+    {
+      // From build.hxx:306:7
+      ::brep::upstream_version v;
+
+      composite_value_traits< ::brep::upstream_version, id_pgsql >::init (
+        v,
+        i.version_value,
+        db);
+
+      // From build.hxx:306:7
+      o.version.init (o.version_, (v));
+    }
+  }
+
+  access::view_traits_impl< ::brep::toolchain, id_pgsql >::query_base_type
+  access::view_traits_impl< ::brep::toolchain, id_pgsql >::
+  query_statement (const query_base_type& q)
+  {
+    query_base_type r (
+      "SELECT DISTINCT "
+      "\"build\".\"toolchain_name\", "
+      "\"build\".\"toolchain_version_epoch\", "
+      "\"build\".\"toolchain_version_canonical_upstream\", "
+      "\"build\".\"toolchain_version_canonical_release\", "
+      "\"build\".\"toolchain_version_revision\", "
+      "\"build\".\"toolchain_version_upstream\", "
+      "\"build\".\"toolchain_version_release\" ");
+
+    r += "FROM \"build\"";
+
+    r += " INNER JOIN \"build_package\" ON";
+    // From build.hxx:291:5
+    r += brep::operator == (query_columns::build::id.package, query_columns::build_package::id) && query_columns::build_package::buildable;
+
+    if (!q.empty ())
+    {
+      r += " ";
+      r += q.clause_prefix ();
+      r += q;
+    }
+
+    return r;
+  }
+
+  result< access::view_traits_impl< ::brep::toolchain, id_pgsql >::view_type >
+  access::view_traits_impl< ::brep::toolchain, id_pgsql >::
+  query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    const query_base_type& qs (query_statement (q));
+    qs.init_parameters ();
+    shared_ptr<select_statement> st (
+      new (shared) select_statement (
+        sts.connection (),
+        query_statement_name,
+        qs.clause (),
+        false,
+        true,
+        qs.parameter_types (),
+        qs.parameter_count (),
+        qs.parameters_binding (),
+        imb));
+
+    st->execute ();
+    st->deallocate ();
+
+    shared_ptr< odb::view_result_impl<view_type> > r (
+      new (shared) pgsql::view_result_impl<view_type> (
+        qs, st, sts, 0));
+
+    return result<view_type> (r);
+  }
+
+  odb::details::shared_ptr<prepared_query_impl>
+  access::view_traits_impl< ::brep::toolchain, id_pgsql >::
+  prepare_query (connection& c, const char* n, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      static_cast<pgsql::connection&> (c));
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    shared_ptr<pgsql::prepared_query_impl> r (
+      new (shared) pgsql::prepared_query_impl (conn));
+    r->name = n;
+    r->execute = &execute_query;
+    r->query = query_statement (q);
+    r->stmt.reset (
+      new (shared) select_statement (
+        sts.connection (),
+        n,
+        r->query.clause (),
+        false,
+        true,
+        r->query.parameter_types (),
+        r->query.parameter_count (),
+        r->query.parameters_binding (),
+        imb));
+
+    return r;
+  }
+
+  odb::details::shared_ptr<result_impl>
+  access::view_traits_impl< ::brep::toolchain, id_pgsql >::
+  execute_query (prepared_query_impl& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::prepared_query_impl& pq (
+      static_cast<pgsql::prepared_query_impl&> (q));
+    shared_ptr<select_statement> st (
+      odb::details::inc_ref (
+        static_cast<select_statement*> (pq.stmt.get ())));
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    // The connection used by the current transaction and the
+    // one used to prepare this statement must be the same.
+    //
+    assert (&conn == &st->connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    pq.query.init_parameters ();
+    st->execute ();
+
+    return shared_ptr<result_impl> (
+      new (shared) pgsql::view_result_impl<view_type> (
+        pq.query, st, sts, 0));
+  }
+
+  // package_build
+  //
+
+  const char access::view_traits_impl< ::brep::package_build, id_pgsql >::
+  query_statement_name[] = "query_brep_package_build";
+
+  bool access::view_traits_impl< ::brep::package_build, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // build
+    //
+    if (object_traits_impl< ::brep::build, id_pgsql >::grow (
+          i.build_value, t + 0UL))
+      grew = true;
+
+    return grew;
+  }
+
+  void access::view_traits_impl< ::brep::package_build, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i)
+  {
+    using namespace pgsql;
+
+    pgsql::statement_kind sk (statement_select);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    std::size_t n (0);
+
+    // build
+    //
+    object_traits_impl< ::brep::build, id_pgsql >::bind (
+      b + n, i.build_value, sk);
+    n += 26UL;
+  }
+
+  void access::view_traits_impl< ::brep::package_build, id_pgsql >::
+  init (view_type& o,
+        const image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    // build pre
+    //
+    typedef ::brep::build build_object_type;
+    typedef object_traits_impl<build_object_type, id_pgsql> build_object_traits;
+    typedef build_object_traits::pointer_type build_pointer_type;
+    typedef build_object_traits::pointer_traits build_pointer_traits;
+    typedef build_object_traits::pointer_cache_traits build_cache_traits;
+
+    build_object_traits::id_type build_id;
+    build_pointer_type build_p;
+    build_pointer_traits::guard build_pg;
+    build_cache_traits::insert_guard build_ig;
+    build_object_type* build_o (0);
+
+    {
+      if (!composite_value_traits< build_object_traits::id_type, id_pgsql >::get_null (
+            i.build_value.id_value))
+      {
+        build_id = build_object_traits::id (i.build_value);
+        build_p = build_cache_traits::find (*db, build_id);
+
+        if (build_pointer_traits::null_ptr (build_p))
+        {
+          build_p = object_factory<build_object_type, build_pointer_type>::create ();
+          build_pg.reset (build_p);
+          build_ig.reset (build_cache_traits::insert (*db, build_id, build_p));
+          build_o = build_pointer_traits::get_ptr (build_p);
+        }
+      }
+    }
+
+    // build
+    //
+    {
+      if (build_o != 0)
+      {
+        build_object_traits::callback (*db, *build_o, callback_event::pre_load);
+        build_object_traits::init (*build_o, i.build_value, db);
+        build_object_traits::statements_type& sts (
+          conn.statement_cache ().find_object<build_object_type> ());
+        build_object_traits::load_ (sts, *build_o, false);
+      }
+    }
+
+    // build post
+    //
+    {
+      if (build_o != 0)
+      {
+        build_object_traits::callback (*db, *build_o, callback_event::post_load);
+        build_cache_traits::load (build_ig.position ());
+        build_ig.release ();
+        build_pg.release ();
+      }
+
+      // If a compiler error points to the line below, then
+      // it most likely means that a pointer used in view
+      // member cannot be initialized from an object pointer.
+      //
+      o.build = ::std::shared_ptr< ::brep::build > (
+        std::move (build_p));
+    }
+  }
+
+  access::view_traits_impl< ::brep::package_build, id_pgsql >::query_base_type
+  access::view_traits_impl< ::brep::package_build, id_pgsql >::
+  query_statement (const query_base_type& q)
+  {
+    query_base_type r (
+      "SELECT "
+      "\"build\".\"package_tenant\", "
+      "\"build\".\"package_name\"::TEXT, "
+      "\"build\".\"package_version_epoch\", "
+      "\"build\".\"package_version_canonical_upstream\", "
+      "\"build\".\"package_version_canonical_release\", "
+      "\"build\".\"package_version_revision\", "
+      "\"build\".\"configuration\", "
+      "\"build\".\"toolchain_name\", "
+      "\"build\".\"toolchain_version_epoch\", "
+      "\"build\".\"toolchain_version_canonical_upstream\", "
+      "\"build\".\"toolchain_version_canonical_release\", "
+      "\"build\".\"toolchain_version_revision\", "
+      "\"build\".\"package_version_upstream\", "
+      "\"build\".\"package_version_release\", "
+      "\"build\".\"toolchain_version_upstream\", "
+      "\"build\".\"toolchain_version_release\", "
+      "\"build\".\"state\", "
+      "\"build\".\"timestamp\", "
+      "\"build\".\"force\", "
+      "\"build\".\"status\", "
+      "\"build\".\"completion_timestamp\", "
+      "\"build\".\"agent_fingerprint\", "
+      "\"build\".\"agent_challenge\", "
+      "\"build\".\"machine\", "
+      "\"build\".\"machine_summary\", "
+      "\"build\".\"target\" ");
+
+    r += "FROM \"build\"";
+
+    r += " INNER JOIN \"build_package\" ON";
+    // From build.hxx:335:5
+    r += brep::operator == (query_columns::build::id.package, query_columns::build_package::id) && query_columns::build_package::buildable;
+
+    r += " LEFT JOIN \"build_tenant\" ON";
+    // From build.hxx:338:5
+    r += query_columns::build_package::id.tenant == query_columns::build_tenant::id;
+
+    if (!q.empty ())
+    {
+      r += " ";
+      r += q.clause_prefix ();
+      r += q;
+    }
+
+    return r;
+  }
+
+  result< access::view_traits_impl< ::brep::package_build, id_pgsql >::view_type >
+  access::view_traits_impl< ::brep::package_build, id_pgsql >::
+  query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    const query_base_type& qs (query_statement (q));
+    qs.init_parameters ();
+    shared_ptr<select_statement> st (
+      new (shared) select_statement (
+        sts.connection (),
+        query_statement_name,
+        qs.clause (),
+        false,
+        true,
+        qs.parameter_types (),
+        qs.parameter_count (),
+        qs.parameters_binding (),
+        imb));
+
+    st->execute ();
+    st->deallocate ();
+
+    shared_ptr< odb::view_result_impl<view_type> > r (
+      new (shared) pgsql::view_result_impl<view_type> (
+        qs, st, sts, 0));
+
+    return result<view_type> (r);
+  }
+
+  odb::details::shared_ptr<prepared_query_impl>
+  access::view_traits_impl< ::brep::package_build, id_pgsql >::
+  prepare_query (connection& c, const char* n, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      static_cast<pgsql::connection&> (c));
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    shared_ptr<pgsql::prepared_query_impl> r (
+      new (shared) pgsql::prepared_query_impl (conn));
+    r->name = n;
+    r->execute = &execute_query;
+    r->query = query_statement (q);
+    r->stmt.reset (
+      new (shared) select_statement (
+        sts.connection (),
+        n,
+        r->query.clause (),
+        false,
+        true,
+        r->query.parameter_types (),
+        r->query.parameter_count (),
+        r->query.parameters_binding (),
+        imb));
+
+    return r;
+  }
+
+  odb::details::shared_ptr<result_impl>
+  access::view_traits_impl< ::brep::package_build, id_pgsql >::
+  execute_query (prepared_query_impl& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::prepared_query_impl& pq (
+      static_cast<pgsql::prepared_query_impl&> (q));
+    shared_ptr<select_statement> st (
+      odb::details::inc_ref (
+        static_cast<select_statement*> (pq.stmt.get ())));
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    // The connection used by the current transaction and the
+    // one used to prepare this statement must be the same.
+    //
+    assert (&conn == &st->connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    pq.query.init_parameters ();
+    st->execute ();
+
+    return shared_ptr<result_impl> (
+      new (shared) pgsql::view_result_impl<view_type> (
+        pq.query, st, sts, 0));
+  }
+
+  // package_build_count
+  //
+
+  const char access::view_traits_impl< ::brep::package_build_count, id_pgsql >::
+  query_statement_name[] = "query_brep_package_build_count";
+
+  bool access::view_traits_impl< ::brep::package_build_count, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // result
+    //
+    t[0UL] = 0;
+
+    return grew;
+  }
+
+  void access::view_traits_impl< ::brep::package_build_count, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i)
+  {
+    using namespace pgsql;
+
+    pgsql::statement_kind sk (statement_select);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    std::size_t n (0);
+
+    // result
+    //
+    b[n].type = pgsql::bind::bigint;
+    b[n].buffer = &i.result_value;
+    b[n].is_null = &i.result_null;
+    n++;
+  }
+
+  void access::view_traits_impl< ::brep::package_build_count, id_pgsql >::
+  init (view_type& o,
+        const image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // result
+    //
+    {
+      ::std::size_t& v =
+        o.result;
+
+      pgsql::value_traits<
+          ::std::size_t,
+          pgsql::id_bigint >::set_value (
+        v,
+        i.result_value,
+        i.result_null);
+    }
+  }
+
+  access::view_traits_impl< ::brep::package_build_count, id_pgsql >::query_base_type
+  access::view_traits_impl< ::brep::package_build_count, id_pgsql >::
+  query_statement (const query_base_type& q)
+  {
+    query_base_type r (
+      "SELECT "
+      "count(\"build\".\"package_name\") ");
+
+    r += "FROM \"build\"";
+
+    r += " INNER JOIN \"build_package\" ON";
+    // From build.hxx:346:5
+    r += brep::operator == (query_columns::build::id.package, query_columns::build_package::id) && query_columns::build_package::buildable;
+
+    r += " LEFT JOIN \"build_tenant\" ON";
+    // From build.hxx:349:5
+    r += query_columns::build_package::id.tenant == query_columns::build_tenant::id;
+
+    if (!q.empty ())
+    {
+      r += " ";
+      r += q.clause_prefix ();
+      r += q;
+    }
+
+    return r;
+  }
+
+  result< access::view_traits_impl< ::brep::package_build_count, id_pgsql >::view_type >
+  access::view_traits_impl< ::brep::package_build_count, id_pgsql >::
+  query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    const query_base_type& qs (query_statement (q));
+    qs.init_parameters ();
+    shared_ptr<select_statement> st (
+      new (shared) select_statement (
+        sts.connection (),
+        query_statement_name,
+        qs.clause (),
+        false,
+        true,
+        qs.parameter_types (),
+        qs.parameter_count (),
+        qs.parameters_binding (),
+        imb));
+
+    st->execute ();
+    st->deallocate ();
+
+    shared_ptr< odb::view_result_impl<view_type> > r (
+      new (shared) pgsql::view_result_impl<view_type> (
+        qs, st, sts, 0));
+
+    return result<view_type> (r);
+  }
+
+  odb::details::shared_ptr<prepared_query_impl>
+  access::view_traits_impl< ::brep::package_build_count, id_pgsql >::
+  prepare_query (connection& c, const char* n, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      static_cast<pgsql::connection&> (c));
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    shared_ptr<pgsql::prepared_query_impl> r (
+      new (shared) pgsql::prepared_query_impl (conn));
+    r->name = n;
+    r->execute = &execute_query;
+    r->query = query_statement (q);
+    r->stmt.reset (
+      new (shared) select_statement (
+        sts.connection (),
+        n,
+        r->query.clause (),
+        false,
+        true,
+        r->query.parameter_types (),
+        r->query.parameter_count (),
+        r->query.parameters_binding (),
+        imb));
+
+    return r;
+  }
+
+  odb::details::shared_ptr<result_impl>
+  access::view_traits_impl< ::brep::package_build_count, id_pgsql >::
+  execute_query (prepared_query_impl& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::prepared_query_impl& pq (
+      static_cast<pgsql::prepared_query_impl&> (q));
+    shared_ptr<select_statement> st (
+      odb::details::inc_ref (
+        static_cast<select_statement*> (pq.stmt.get ())));
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    // The connection used by the current transaction and the
+    // one used to prepare this statement must be the same.
+    //
+    assert (&conn == &st->connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    pq.query.init_parameters ();
+    st->execute ();
+
+    return shared_ptr<result_impl> (
+      new (shared) pgsql::view_result_impl<view_type> (
+        pq.query, st, sts, 0));
+  }
+
+  // build_delay
+  //
+
+  const char access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  persist_statement_name[] = "persist_brep_build_delay";
+
+  const char access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  find_statement_name[] = "find_brep_build_delay";
+
+  const char access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  update_statement_name[] = "update_brep_build_delay";
+
+  const char access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  erase_statement_name[] = "erase_brep_build_delay";
+
+  const char access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  query_statement_name[] = "query_brep_build_delay";
+
+  const char access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  erase_query_statement_name[] = "erase_query_brep_build_delay";
+
+  const unsigned int access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  persist_statement_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int8_oid,
+    pgsql::int8_oid
+  };
+
+  const unsigned int access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  find_statement_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid
+  };
+
+  const unsigned int access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  update_statement_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int8_oid,
+    pgsql::int8_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid
+  };
+
+  struct access::object_traits_impl< ::brep::build_delay, id_pgsql >::extra_statement_cache_type
+  {
+    extra_statement_cache_type (
+      pgsql::connection&,
+      image_type&,
+      id_image_type&,
+      pgsql::binding&,
+      pgsql::binding&,
+      pgsql::native_binding&,
+      const unsigned int*)
+    {
+    }
+  };
+
+  access::object_traits_impl< ::brep::build_delay, id_pgsql >::id_type
+  access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  id (const image_type& i)
+  {
+    pgsql::database* db (0);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    id_type id;
+    {
+      composite_value_traits< ::brep::build_id, id_pgsql >::init (
+        id,
+        i.id_value,
+        db);
+    }
+
+    return id;
+  }
+
+  bool access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // id
+    //
+    if (composite_value_traits< ::brep::build_id, id_pgsql >::grow (
+          i.id_value, t + 0UL))
+      grew = true;
+
+    // package_version
+    //
+    if (composite_value_traits< ::brep::upstream_version, id_pgsql >::grow (
+          i.package_version_value, t + 12UL))
+      grew = true;
+
+    // toolchain_version
+    //
+    if (composite_value_traits< ::brep::upstream_version, id_pgsql >::grow (
+          i.toolchain_version_value, t + 14UL))
+      grew = true;
+
+    // report_timestamp
+    //
+    t[16UL] = 0;
+
+    // package_timestamp
+    //
+    t[17UL] = 0;
+
+    return grew;
+  }
+
+  void access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+
+    // id
+    //
+    if (sk != statement_update)
+    {
+      composite_value_traits< ::brep::build_id, id_pgsql >::bind (
+        b + n, i.id_value, sk);
+      n += 12UL;
+    }
+
+    // package_version
+    //
+    composite_value_traits< ::brep::upstream_version, id_pgsql >::bind (
+      b + n, i.package_version_value, sk);
+    n += 2UL;
+
+    // toolchain_version
+    //
+    composite_value_traits< ::brep::upstream_version, id_pgsql >::bind (
+      b + n, i.toolchain_version_value, sk);
+    n += 2UL;
+
+    // report_timestamp
+    //
+    b[n].type = pgsql::bind::bigint;
+    b[n].buffer = &i.report_timestamp_value;
+    b[n].is_null = &i.report_timestamp_null;
+    n++;
+
+    // package_timestamp
+    //
+    b[n].type = pgsql::bind::bigint;
+    b[n].buffer = &i.package_timestamp_value;
+    b[n].is_null = &i.package_timestamp_null;
+    n++;
+  }
+
+  void access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  bind (pgsql::bind* b, id_image_type& i)
+  {
+    std::size_t n (0);
+    pgsql::statement_kind sk (pgsql::statement_select);
+    composite_value_traits< ::brep::build_id, id_pgsql >::bind (
+      b + n, i.id_value, sk);
+  }
+
+  bool access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  init (image_type& i,
+        const object_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // id
+    //
+    if (sk == statement_insert)
+    {
+      ::brep::build_id const& v =
+        o.id;
+
+      if (composite_value_traits< ::brep::build_id, id_pgsql >::init (
+            i.id_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    // package_version
+    //
+    {
+      ::brep::upstream_version const& v =
+        o.package_version;
+
+      if (composite_value_traits< ::brep::upstream_version, id_pgsql >::init (
+            i.package_version_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    // toolchain_version
+    //
+    {
+      ::brep::upstream_version const& v =
+        o.toolchain_version;
+
+      if (composite_value_traits< ::brep::upstream_version, id_pgsql >::init (
+            i.toolchain_version_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    // report_timestamp
+    //
+    {
+      ::butl::timestamp const& v =
+        o.report_timestamp;
+
+      // From common.hxx:119:14
+      ::uint64_t const& vt =
+        std::chrono::duration_cast < std::chrono::nanoseconds > ((v).time_since_epoch ()).count ();
+
+      bool is_null (false);
+      pgsql::value_traits<
+          ::uint64_t,
+          pgsql::id_bigint >::set_image (
+        i.report_timestamp_value, is_null, vt);
+      i.report_timestamp_null = is_null;
+    }
+
+    // package_timestamp
+    //
+    {
+      ::butl::timestamp const& v =
+        o.package_timestamp;
+
+      // From common.hxx:119:14
+      ::uint64_t const& vt =
+        std::chrono::duration_cast < std::chrono::nanoseconds > ((v).time_since_epoch ()).count ();
+
+      bool is_null (false);
+      pgsql::value_traits<
+          ::uint64_t,
+          pgsql::id_bigint >::set_image (
+        i.package_timestamp_value, is_null, vt);
+      i.package_timestamp_null = is_null;
+    }
+
+    return grew;
+  }
+
+  void access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  init (object_type& o,
+        const image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // id
+    //
+    {
+      ::brep::build_id& v =
+        o.id;
+
+      composite_value_traits< ::brep::build_id, id_pgsql >::init (
+        v,
+        i.id_value,
+        db);
+    }
+
+    // package_version
+    //
+    {
+      // From build.hxx:407:7
+      ::brep::upstream_version v;
+
+      composite_value_traits< ::brep::upstream_version, id_pgsql >::init (
+        v,
+        i.package_version_value,
+        db);
+
+      // From build.hxx:407:7
+      o.package_version.init (o.id.package.version, (v));
+    }
+
+    // toolchain_version
+    //
+    {
+      // From build.hxx:411:7
+      ::brep::upstream_version v;
+
+      composite_value_traits< ::brep::upstream_version, id_pgsql >::init (
+        v,
+        i.toolchain_version_value,
+        db);
+
+      // From build.hxx:411:7
+      o.toolchain_version.init (o.id.toolchain_version, (v));
+    }
+
+    // report_timestamp
+    //
+    {
+      ::butl::timestamp& v =
+        o.report_timestamp;
+
+      ::uint64_t vt;
+
+      pgsql::value_traits<
+          ::uint64_t,
+          pgsql::id_bigint >::set_value (
+        vt,
+        i.report_timestamp_value,
+        i.report_timestamp_null);
+
+      // From common.hxx:119:14
+      v = brep::timestamp (std::chrono::duration_cast < brep::timestamp::duration > (std::chrono::nanoseconds (vt)));
+    }
+
+    // package_timestamp
+    //
+    {
+      ::butl::timestamp& v =
+        o.package_timestamp;
+
+      ::uint64_t vt;
+
+      pgsql::value_traits<
+          ::uint64_t,
+          pgsql::id_bigint >::set_value (
+        vt,
+        i.package_timestamp_value,
+        i.package_timestamp_null);
+
+      // From common.hxx:119:14
+      v = brep::timestamp (std::chrono::duration_cast < brep::timestamp::duration > (std::chrono::nanoseconds (vt)));
+    }
+  }
+
+  void access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  init (id_image_type& i, const id_type& id)
+  {
+    bool grew (false);
+    pgsql::statement_kind sk (pgsql::statement_select);
+    {
+      if (composite_value_traits< ::brep::build_id, id_pgsql >::init (
+            i.id_value,
+            id,
+            sk))
+        grew = true;
+    }
+
+    if (grew)
+      i.version++;
+  }
+
+  const char access::object_traits_impl< ::brep::build_delay, id_pgsql >::persist_statement[] =
+  "INSERT INTO \"build_delay\" "
+  "(\"package_tenant\", "
+  "\"package_name\", "
+  "\"package_version_epoch\", "
+  "\"package_version_canonical_upstream\", "
+  "\"package_version_canonical_release\", "
+  "\"package_version_revision\", "
+  "\"configuration\", "
+  "\"toolchain_name\", "
+  "\"toolchain_version_epoch\", "
+  "\"toolchain_version_canonical_upstream\", "
+  "\"toolchain_version_canonical_release\", "
+  "\"toolchain_version_revision\", "
+  "\"package_version_upstream\", "
+  "\"package_version_release\", "
+  "\"toolchain_version_upstream\", "
+  "\"toolchain_version_release\", "
+  "\"report_timestamp\", "
+  "\"package_timestamp\") "
+  "VALUES "
+  "($1, $2::CITEXT, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18)";
+
+  const char access::object_traits_impl< ::brep::build_delay, id_pgsql >::find_statement[] =
+  "SELECT "
+  "\"build_delay\".\"package_tenant\", "
+  "\"build_delay\".\"package_name\"::TEXT, "
+  "\"build_delay\".\"package_version_epoch\", "
+  "\"build_delay\".\"package_version_canonical_upstream\", "
+  "\"build_delay\".\"package_version_canonical_release\", "
+  "\"build_delay\".\"package_version_revision\", "
+  "\"build_delay\".\"configuration\", "
+  "\"build_delay\".\"toolchain_name\", "
+  "\"build_delay\".\"toolchain_version_epoch\", "
+  "\"build_delay\".\"toolchain_version_canonical_upstream\", "
+  "\"build_delay\".\"toolchain_version_canonical_release\", "
+  "\"build_delay\".\"toolchain_version_revision\", "
+  "\"build_delay\".\"package_version_upstream\", "
+  "\"build_delay\".\"package_version_release\", "
+  "\"build_delay\".\"toolchain_version_upstream\", "
+  "\"build_delay\".\"toolchain_version_release\", "
+  "\"build_delay\".\"report_timestamp\", "
+  "\"build_delay\".\"package_timestamp\" "
+  "FROM \"build_delay\" "
+  "WHERE \"build_delay\".\"package_tenant\"=$1 AND \"build_delay\".\"package_name\"=$2::CITEXT AND \"build_delay\".\"package_version_epoch\"=$3 AND \"build_delay\".\"package_version_canonical_upstream\"=$4 AND \"build_delay\".\"package_version_canonical_release\"=$5 AND \"build_delay\".\"package_version_revision\"=$6 AND \"build_delay\".\"configuration\"=$7 AND \"build_delay\".\"toolchain_name\"=$8 AND \"build_delay\".\"toolchain_version_epoch\"=$9 AND \"build_delay\".\"toolchain_version_canonical_upstream\"=$10 AND \"build_delay\".\"toolchain_version_canonical_release\"=$11 AND \"build_delay\".\"toolchain_version_revision\"=$12";
+
+  const char access::object_traits_impl< ::brep::build_delay, id_pgsql >::update_statement[] =
+  "UPDATE \"build_delay\" "
+  "SET "
+  "\"package_version_upstream\"=$1, "
+  "\"package_version_release\"=$2, "
+  "\"toolchain_version_upstream\"=$3, "
+  "\"toolchain_version_release\"=$4, "
+  "\"report_timestamp\"=$5, "
+  "\"package_timestamp\"=$6 "
+  "WHERE \"package_tenant\"=$7 AND \"package_name\"=$8::CITEXT AND \"package_version_epoch\"=$9 AND \"package_version_canonical_upstream\"=$10 AND \"package_version_canonical_release\"=$11 AND \"package_version_revision\"=$12 AND \"configuration\"=$13 AND \"toolchain_name\"=$14 AND \"toolchain_version_epoch\"=$15 AND \"toolchain_version_canonical_upstream\"=$16 AND \"toolchain_version_canonical_release\"=$17 AND \"toolchain_version_revision\"=$18";
+
+  const char access::object_traits_impl< ::brep::build_delay, id_pgsql >::erase_statement[] =
+  "DELETE FROM \"build_delay\" "
+  "WHERE \"package_tenant\"=$1 AND \"package_name\"=$2::CITEXT AND \"package_version_epoch\"=$3 AND \"package_version_canonical_upstream\"=$4 AND \"package_version_canonical_release\"=$5 AND \"package_version_revision\"=$6 AND \"configuration\"=$7 AND \"toolchain_name\"=$8 AND \"toolchain_version_epoch\"=$9 AND \"toolchain_version_canonical_upstream\"=$10 AND \"toolchain_version_canonical_release\"=$11 AND \"toolchain_version_revision\"=$12";
+
+  const char access::object_traits_impl< ::brep::build_delay, id_pgsql >::query_statement[] =
+  "SELECT "
+  "\"build_delay\".\"package_tenant\", "
+  "\"build_delay\".\"package_name\"::TEXT, "
+  "\"build_delay\".\"package_version_epoch\", "
+  "\"build_delay\".\"package_version_canonical_upstream\", "
+  "\"build_delay\".\"package_version_canonical_release\", "
+  "\"build_delay\".\"package_version_revision\", "
+  "\"build_delay\".\"configuration\", "
+  "\"build_delay\".\"toolchain_name\", "
+  "\"build_delay\".\"toolchain_version_epoch\", "
+  "\"build_delay\".\"toolchain_version_canonical_upstream\", "
+  "\"build_delay\".\"toolchain_version_canonical_release\", "
+  "\"build_delay\".\"toolchain_version_revision\", "
+  "\"build_delay\".\"package_version_upstream\", "
+  "\"build_delay\".\"package_version_release\", "
+  "\"build_delay\".\"toolchain_version_upstream\", "
+  "\"build_delay\".\"toolchain_version_release\", "
+  "\"build_delay\".\"report_timestamp\", "
+  "\"build_delay\".\"package_timestamp\" "
+  "FROM \"build_delay\"";
+
+  const char access::object_traits_impl< ::brep::build_delay, id_pgsql >::erase_query_statement[] =
+  "DELETE FROM \"build_delay\"";
+
+  const char access::object_traits_impl< ::brep::build_delay, id_pgsql >::table_name[] =
+  "\"build_delay\"";
+
+  void access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  persist (database& db, const object_type& obj)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    callback (db,
+              obj,
+              callback_event::pre_persist);
+
+    image_type& im (sts.image ());
+    binding& imb (sts.insert_image_binding ());
+
+    if (init (im, obj, statement_insert))
+      im.version++;
+
+    if (im.version != sts.insert_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_insert);
+      sts.insert_image_version (im.version);
+      imb.version++;
+    }
+
+    insert_statement& st (sts.persist_statement ());
+    if (!st.execute ())
+      throw object_already_persistent ();
+
+    callback (db,
+              obj,
+              callback_event::post_persist);
+  }
+
+  void access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  update (database& db, const object_type& obj)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+
+    using namespace pgsql;
+    using pgsql::update_statement;
+
+    callback (db, obj, callback_event::pre_update);
+
+    pgsql::transaction& tr (pgsql::transaction::current ());
+    pgsql::connection& conn (tr.connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    id_image_type& idi (sts.id_image ());
+    init (idi, id (obj));
+
+    image_type& im (sts.image ());
+    if (init (im, obj, statement_update))
+      im.version++;
+
+    bool u (false);
+    binding& imb (sts.update_image_binding ());
+    if (im.version != sts.update_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_update);
+      sts.update_image_version (im.version);
+      imb.version++;
+      u = true;
+    }
+
+    binding& idb (sts.id_image_binding ());
+    if (idi.version != sts.update_id_image_version () ||
+        idb.version == 0)
+    {
+      if (idi.version != sts.id_image_version () ||
+          idb.version == 0)
+      {
+        bind (idb.bind, idi);
+        sts.id_image_version (idi.version);
+        idb.version++;
+      }
+
+      sts.update_id_image_version (idi.version);
+
+      if (!u)
+        imb.version++;
+    }
+
+    update_statement& st (sts.update_statement ());
+    if (st.execute () == 0)
+      throw object_not_persistent ();
+
+    callback (db, obj, callback_event::post_update);
+    pointer_cache_traits::update (db, obj);
+  }
+
+  void access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  erase (database& db, const id_type& id)
+  {
+    using namespace pgsql;
+
+    ODB_POTENTIALLY_UNUSED (db);
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    id_image_type& i (sts.id_image ());
+    init (i, id);
+
+    binding& idb (sts.id_image_binding ());
+    if (i.version != sts.id_image_version () || idb.version == 0)
+    {
+      bind (idb.bind, i);
+      sts.id_image_version (i.version);
+      idb.version++;
+    }
+
+    if (sts.erase_statement ().execute () != 1)
+      throw object_not_persistent ();
+
+    pointer_cache_traits::erase (db, id);
+  }
+
+  access::object_traits_impl< ::brep::build_delay, id_pgsql >::pointer_type
+  access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  find (database& db, const id_type& id)
+  {
+    using namespace pgsql;
+
+    {
+      pointer_type p (pointer_cache_traits::find (db, id));
+
+      if (!pointer_traits::null_ptr (p))
+        return p;
+    }
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+
+    if (l.locked ())
+    {
+      if (!find_ (sts, &id))
+        return pointer_type ();
+    }
+
+    pointer_type p (
+      access::object_factory<object_type, pointer_type>::create ());
+    pointer_traits::guard pg (p);
+
+    pointer_cache_traits::insert_guard ig (
+      pointer_cache_traits::insert (db, id, p));
+
+    object_type& obj (pointer_traits::get_ref (p));
+
+    if (l.locked ())
+    {
+      select_statement& st (sts.find_statement ());
+      ODB_POTENTIALLY_UNUSED (st);
+
+      callback (db, obj, callback_event::pre_load);
+      init (obj, sts.image (), &db);
+      load_ (sts, obj, false);
+      sts.load_delayed (0);
+      l.unlock ();
+      callback (db, obj, callback_event::post_load);
+      pointer_cache_traits::load (ig.position ());
+    }
+    else
+      sts.delay_load (id, obj, ig.position ());
+
+    ig.release ();
+    pg.release ();
+    return p;
+  }
+
+  bool access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  find (database& db, const id_type& id, object_type& obj)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+    assert (l.locked ()) /* Must be a top-level call. */;
+
+    if (!find_ (sts, &id))
+      return false;
+
+    select_statement& st (sts.find_statement ());
+    ODB_POTENTIALLY_UNUSED (st);
+
+    reference_cache_traits::position_type pos (
+      reference_cache_traits::insert (db, id, obj));
+    reference_cache_traits::insert_guard ig (pos);
+
+    callback (db, obj, callback_event::pre_load);
+    init (obj, sts.image (), &db);
+    load_ (sts, obj, false);
+    sts.load_delayed (0);
+    l.unlock ();
+    callback (db, obj, callback_event::post_load);
+    reference_cache_traits::load (pos);
+    ig.release ();
+    return true;
+  }
+
+  bool access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  reload (database& db, object_type& obj)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+    assert (l.locked ()) /* Must be a top-level call. */;
+
+    const id_type& id (object_traits_impl::id (obj));
+    if (!find_ (sts, &id))
+      return false;
+
+    select_statement& st (sts.find_statement ());
+    ODB_POTENTIALLY_UNUSED (st);
+
+    callback (db, obj, callback_event::pre_load);
+    init (obj, sts.image (), &db);
+    load_ (sts, obj, true);
+    sts.load_delayed (0);
+    l.unlock ();
+    callback (db, obj, callback_event::post_load);
+    return true;
+  }
+
+  bool access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  find_ (statements_type& sts,
+         const id_type* id)
+  {
+    using namespace pgsql;
+
+    id_image_type& i (sts.id_image ());
+    init (i, *id);
+
+    binding& idb (sts.id_image_binding ());
+    if (i.version != sts.id_image_version () || idb.version == 0)
+    {
+      bind (idb.bind, i);
+      sts.id_image_version (i.version);
+      idb.version++;
+    }
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    select_statement& st (sts.find_statement ());
+
+    st.execute ();
+    auto_result ar (st);
+    select_statement::result r (st.fetch ());
+
+    if (r == select_statement::truncated)
+    {
+      if (grow (im, sts.select_image_truncated ()))
+        im.version++;
+
+      if (im.version != sts.select_image_version ())
+      {
+        bind (imb.bind, im, statement_select);
+        sts.select_image_version (im.version);
+        imb.version++;
+        st.refetch ();
+      }
+    }
+
+    return r != select_statement::no_data;
+  }
+
+  result< access::object_traits_impl< ::brep::build_delay, id_pgsql >::object_type >
+  access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    std::string text (query_statement);
+    if (!q.empty ())
+    {
+      text += " ";
+      text += q.clause ();
+    }
+
+    q.init_parameters ();
+    shared_ptr<select_statement> st (
+      new (shared) select_statement (
+        sts.connection (),
+        query_statement_name,
+        text,
+        false,
+        true,
+        q.parameter_types (),
+        q.parameter_count (),
+        q.parameters_binding (),
+        imb));
+
+    st->execute ();
+    st->deallocate ();
+
+    shared_ptr< odb::object_result_impl<object_type> > r (
+      new (shared) pgsql::object_result_impl<object_type> (
+        q, st, sts, 0));
+
+    return result<object_type> (r);
+  }
+
+  unsigned long long access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  erase_query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    std::string text (erase_query_statement);
+    if (!q.empty ())
+    {
+      text += ' ';
+      text += q.clause ();
+    }
+
+    q.init_parameters ();
+    delete_statement st (
+      conn,
+      erase_query_statement_name,
+      text,
+      q.parameter_types (),
+      q.parameter_count (),
+      q.parameters_binding ());
+
+    return st.execute ();
+  }
+
+  odb::details::shared_ptr<prepared_query_impl>
+  access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  prepare_query (connection& c, const char* n, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      static_cast<pgsql::connection&> (c));
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    std::string text (query_statement);
+    if (!q.empty ())
+    {
+      text += " ";
+      text += q.clause ();
+    }
+
+    shared_ptr<pgsql::prepared_query_impl> r (
+      new (shared) pgsql::prepared_query_impl (conn));
+    r->name = n;
+    r->execute = &execute_query;
+    r->query = q;
+    r->stmt.reset (
+      new (shared) select_statement (
+        sts.connection (),
+        n,
+        text,
+        false,
+        true,
+        r->query.parameter_types (),
+        r->query.parameter_count (),
+        r->query.parameters_binding (),
+        imb));
+
+    return r;
+  }
+
+  odb::details::shared_ptr<result_impl>
+  access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  execute_query (prepared_query_impl& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::prepared_query_impl& pq (
+      static_cast<pgsql::prepared_query_impl&> (q));
+    shared_ptr<select_statement> st (
+      odb::details::inc_ref (
+        static_cast<select_statement*> (pq.stmt.get ())));
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    // The connection used by the current transaction and the
+    // one used to prepare this statement must be the same.
+    //
+    assert (&conn == &st->connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    pq.query.init_parameters ();
+    st->execute ();
+
+    return shared_ptr<result_impl> (
+      new (shared) pgsql::object_result_impl<object_type> (
+        pq.query, st, sts, 0));
+  }
+}
+
+namespace odb
+{
+  static bool
+  create_schema (database& db, unsigned short pass, bool drop)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (pass);
+    ODB_POTENTIALLY_UNUSED (drop);
+
+    if (drop)
+    {
+      switch (pass)
+      {
+        case 1:
+        {
+          return true;
+        }
+        case 2:
+        {
+          db.execute ("DROP TABLE IF EXISTS \"build_delay\" CASCADE");
+          db.execute ("DROP TABLE IF EXISTS \"build_results\" CASCADE");
+          db.execute ("DROP TABLE IF EXISTS \"build\" CASCADE");
+          db.execute ("DROP TABLE IF EXISTS \"schema_version\"");
+          return false;
+        }
+      }
+    }
+    else
+    {
+      switch (pass)
+      {
+        case 1:
+        {
+          db.execute ("CREATE TABLE \"build\" (\n"
+                      "  \"package_tenant\" TEXT NOT NULL,\n"
+                      "  \"package_name\" CITEXT NOT NULL,\n"
+                      "  \"package_version_epoch\" INTEGER NOT NULL,\n"
+                      "  \"package_version_canonical_upstream\" TEXT NOT NULL,\n"
+                      "  \"package_version_canonical_release\" TEXT NOT NULL COLLATE \"C\",\n"
+                      "  \"package_version_revision\" INTEGER NOT NULL,\n"
+                      "  \"configuration\" TEXT NOT NULL,\n"
+                      "  \"toolchain_name\" TEXT NOT NULL,\n"
+                      "  \"toolchain_version_epoch\" INTEGER NOT NULL,\n"
+                      "  \"toolchain_version_canonical_upstream\" TEXT NOT NULL,\n"
+                      "  \"toolchain_version_canonical_release\" TEXT NOT NULL COLLATE \"C\",\n"
+                      "  \"toolchain_version_revision\" INTEGER NOT NULL,\n"
+                      "  \"package_version_upstream\" TEXT NOT NULL,\n"
+                      "  \"package_version_release\" TEXT NULL,\n"
+                      "  \"toolchain_version_upstream\" TEXT NOT NULL,\n"
+                      "  \"toolchain_version_release\" TEXT NULL,\n"
+                      "  \"state\" TEXT NOT NULL,\n"
+                      "  \"timestamp\" BIGINT NOT NULL,\n"
+                      "  \"force\" TEXT NOT NULL,\n"
+                      "  \"status\" TEXT NULL,\n"
+                      "  \"completion_timestamp\" BIGINT NOT NULL DEFAULT 0,\n"
+                      "  \"agent_fingerprint\" TEXT NULL,\n"
+                      "  \"agent_challenge\" TEXT NULL,\n"
+                      "  \"machine\" TEXT NOT NULL,\n"
+                      "  \"machine_summary\" TEXT NOT NULL,\n"
+                      "  \"target\" TEXT NOT NULL,\n"
+                      "  PRIMARY KEY (\"package_tenant\",\n"
+                      "               \"package_name\",\n"
+                      "               \"package_version_epoch\",\n"
+                      "               \"package_version_canonical_upstream\",\n"
+                      "               \"package_version_canonical_release\",\n"
+                      "               \"package_version_revision\",\n"
+                      "               \"configuration\",\n"
+                      "               \"toolchain_name\",\n"
+                      "               \"toolchain_version_epoch\",\n"
+                      "               \"toolchain_version_canonical_upstream\",\n"
+                      "               \"toolchain_version_canonical_release\",\n"
+                      "               \"toolchain_version_revision\"))");
+          db.execute ("CREATE INDEX \"build_timestamp_i\"\n"
+                      "  ON \"build\" (\"timestamp\")");
+          db.execute ("CREATE TABLE \"build_results\" (\n"
+                      "  \"package_tenant\" TEXT NOT NULL,\n"
+                      "  \"package_name\" CITEXT NOT NULL,\n"
+                      "  \"package_version_epoch\" INTEGER NOT NULL,\n"
+                      "  \"package_version_canonical_upstream\" TEXT NOT NULL,\n"
+                      "  \"package_version_canonical_release\" TEXT NOT NULL COLLATE \"C\",\n"
+                      "  \"package_version_revision\" INTEGER NOT NULL,\n"
+                      "  \"configuration\" TEXT NOT NULL,\n"
+                      "  \"toolchain_name\" TEXT NOT NULL,\n"
+                      "  \"toolchain_version_epoch\" INTEGER NOT NULL,\n"
+                      "  \"toolchain_version_canonical_upstream\" TEXT NOT NULL,\n"
+                      "  \"toolchain_version_canonical_release\" TEXT NOT NULL COLLATE \"C\",\n"
+                      "  \"toolchain_version_revision\" INTEGER NOT NULL,\n"
+                      "  \"index\" BIGINT NOT NULL,\n"
+                      "  \"operation\" TEXT NOT NULL,\n"
+                      "  \"status\" TEXT NOT NULL,\n"
+                      "  \"log\" TEXT NOT NULL,\n"
+                      "  CONSTRAINT \"object_id_fk\"\n"
+                      "    FOREIGN KEY (\"package_tenant\",\n"
+                      "                 \"package_name\",\n"
+                      "                 \"package_version_epoch\",\n"
+                      "                 \"package_version_canonical_upstream\",\n"
+                      "                 \"package_version_canonical_release\",\n"
+                      "                 \"package_version_revision\",\n"
+                      "                 \"configuration\",\n"
+                      "                 \"toolchain_name\",\n"
+                      "                 \"toolchain_version_epoch\",\n"
+                      "                 \"toolchain_version_canonical_upstream\",\n"
+                      "                 \"toolchain_version_canonical_release\",\n"
+                      "                 \"toolchain_version_revision\")\n"
+                      "    REFERENCES \"build\" (\"package_tenant\",\n"
+                      "                        \"package_name\",\n"
+                      "                        \"package_version_epoch\",\n"
+                      "                        \"package_version_canonical_upstream\",\n"
+                      "                        \"package_version_canonical_release\",\n"
+                      "                        \"package_version_revision\",\n"
+                      "                        \"configuration\",\n"
+                      "                        \"toolchain_name\",\n"
+                      "                        \"toolchain_version_epoch\",\n"
+                      "                        \"toolchain_version_canonical_upstream\",\n"
+                      "                        \"toolchain_version_canonical_release\",\n"
+                      "                        \"toolchain_version_revision\")\n"
+                      "    ON DELETE CASCADE)");
+          db.execute ("CREATE INDEX \"build_results_object_id_i\"\n"
+                      "  ON \"build_results\" (\n"
+                      "    \"package_tenant\",\n"
+                      "    \"package_name\",\n"
+                      "    \"package_version_epoch\",\n"
+                      "    \"package_version_canonical_upstream\",\n"
+                      "    \"package_version_canonical_release\",\n"
+                      "    \"package_version_revision\",\n"
+                      "    \"configuration\",\n"
+                      "    \"toolchain_name\",\n"
+                      "    \"toolchain_version_epoch\",\n"
+                      "    \"toolchain_version_canonical_upstream\",\n"
+                      "    \"toolchain_version_canonical_release\",\n"
+                      "    \"toolchain_version_revision\")");
+          db.execute ("CREATE INDEX \"build_results_index_i\"\n"
+                      "  ON \"build_results\" (\"index\")");
+          db.execute ("CREATE TABLE \"build_delay\" (\n"
+                      "  \"package_tenant\" TEXT NOT NULL,\n"
+                      "  \"package_name\" CITEXT NOT NULL,\n"
+                      "  \"package_version_epoch\" INTEGER NOT NULL,\n"
+                      "  \"package_version_canonical_upstream\" TEXT NOT NULL,\n"
+                      "  \"package_version_canonical_release\" TEXT NOT NULL COLLATE \"C\",\n"
+                      "  \"package_version_revision\" INTEGER NOT NULL,\n"
+                      "  \"configuration\" TEXT NOT NULL,\n"
+                      "  \"toolchain_name\" TEXT NOT NULL,\n"
+                      "  \"toolchain_version_epoch\" INTEGER NOT NULL,\n"
+                      "  \"toolchain_version_canonical_upstream\" TEXT NOT NULL,\n"
+                      "  \"toolchain_version_canonical_release\" TEXT NOT NULL COLLATE \"C\",\n"
+                      "  \"toolchain_version_revision\" INTEGER NOT NULL,\n"
+                      "  \"package_version_upstream\" TEXT NOT NULL,\n"
+                      "  \"package_version_release\" TEXT NULL,\n"
+                      "  \"toolchain_version_upstream\" TEXT NOT NULL,\n"
+                      "  \"toolchain_version_release\" TEXT NULL,\n"
+                      "  \"report_timestamp\" BIGINT NOT NULL,\n"
+                      "  \"package_timestamp\" BIGINT NOT NULL,\n"
+                      "  PRIMARY KEY (\"package_tenant\",\n"
+                      "               \"package_name\",\n"
+                      "               \"package_version_epoch\",\n"
+                      "               \"package_version_canonical_upstream\",\n"
+                      "               \"package_version_canonical_release\",\n"
+                      "               \"package_version_revision\",\n"
+                      "               \"configuration\",\n"
+                      "               \"toolchain_name\",\n"
+                      "               \"toolchain_version_epoch\",\n"
+                      "               \"toolchain_version_canonical_upstream\",\n"
+                      "               \"toolchain_version_canonical_release\",\n"
+                      "               \"toolchain_version_revision\"))");
+          return true;
+        }
+        case 2:
+        {
+          db.execute ("CREATE TABLE \"schema_version\" (\n"
+                      "  \"name\" TEXT NOT NULL PRIMARY KEY,\n"
+                      "  \"version\" BIGINT NOT NULL,\n"
+                      "  \"migration\" BOOLEAN NOT NULL)");
+          db.execute ("INSERT INTO \"schema_version\" (\n"
+                      "  \"name\", \"version\", \"migration\")\n"
+                      "  VALUES ('build', 12, FALSE)");
+          return false;
+        }
+      }
+    }
+
+    return false;
+  }
+
+  static const schema_catalog_create_entry
+  create_schema_entry_ (
+    id_pgsql,
+    "build",
+    &create_schema);
+
+  static const schema_catalog_migrate_entry
+  migrate_schema_entry_12_ (
+    id_pgsql,
+    "build",
+    12ULL,
+    0);
+}
+
+#include <odb/post.hxx>
diff --git a/libbrep/build-odb.hxx b/libbrep/build-odb.hxx
new file mode 100644
index 0000000..9000a24
--- /dev/null
+++ b/libbrep/build-odb.hxx
@@ -0,0 +1,2056 @@
+// -*- C++ -*-
+//
+// This file was generated by ODB, object-relational mapping (ORM)
+// compiler for C++.
+//
+
+#ifndef LIBBREP_BUILD_ODB_HXX
+#define LIBBREP_BUILD_ODB_HXX
+
+#include <odb/version.hxx>
+
+#if (ODB_VERSION != 20470UL)
+#error ODB runtime version mismatch
+#endif
+
+#include <odb/pre.hxx>
+
+#include <libbrep/build.hxx>
+
+#include <libbrep/build-package-odb.hxx>
+#include <libbrep/common-odb.hxx>
+
+#include <memory>
+#include <cstddef>
+#include <utility>
+
+#include <odb/core.hxx>
+#include <odb/traits.hxx>
+#include <odb/callback.hxx>
+#include <odb/wrapper-traits.hxx>
+#include <odb/pointer-traits.hxx>
+#include <odb/container-traits.hxx>
+#include <odb/session.hxx>
+#include <odb/cache-traits.hxx>
+#include <odb/prepared-query.hxx>
+#include <odb/result.hxx>
+#include <odb/simple-object-result.hxx>
+#include <odb/view-image.hxx>
+#include <odb/view-result.hxx>
+
+#include <odb/details/unused.hxx>
+#include <odb/details/shared-ptr.hxx>
+
+namespace odb
+{
+  // build
+  //
+  template <>
+  struct class_traits< ::brep::build >
+  {
+    static const class_kind kind = class_object;
+  };
+
+  template <>
+  class access::object_traits< ::brep::build >
+  {
+    public:
+    typedef ::brep::build object_type;
+    typedef ::std::shared_ptr< ::brep::build > pointer_type;
+    typedef odb::pointer_traits<pointer_type> pointer_traits;
+
+    static const bool polymorphic = false;
+
+    typedef ::brep::build_id id_type;
+
+    static const bool auto_id = false;
+
+    static const bool abstract = false;
+
+    static id_type
+    id (const object_type&);
+
+    typedef
+    odb::pointer_cache_traits<
+      pointer_type,
+      odb::session >
+    pointer_cache_traits;
+
+    typedef
+    odb::reference_cache_traits<
+      object_type,
+      odb::session >
+    reference_cache_traits;
+
+    static void
+    callback (database&, object_type&, callback_event);
+
+    static void
+    callback (database&, const object_type&, callback_event);
+  };
+
+  // toolchain
+  //
+  template <>
+  struct class_traits< ::brep::toolchain >
+  {
+    static const class_kind kind = class_view;
+  };
+
+  template <>
+  class access::view_traits< ::brep::toolchain >
+  {
+    public:
+    typedef ::brep::toolchain view_type;
+    typedef ::brep::toolchain* pointer_type;
+
+    static void
+    callback (database&, view_type&, callback_event);
+  };
+
+  // package_build
+  //
+  template <>
+  struct class_traits< ::brep::package_build >
+  {
+    static const class_kind kind = class_view;
+  };
+
+  template <>
+  class access::view_traits< ::brep::package_build >
+  {
+    public:
+    typedef ::brep::package_build view_type;
+    typedef ::brep::package_build* pointer_type;
+
+    static void
+    callback (database&, view_type&, callback_event);
+  };
+
+  // package_build_count
+  //
+  template <>
+  struct class_traits< ::brep::package_build_count >
+  {
+    static const class_kind kind = class_view;
+  };
+
+  template <>
+  class access::view_traits< ::brep::package_build_count >
+  {
+    public:
+    typedef ::brep::package_build_count view_type;
+    typedef ::brep::package_build_count* pointer_type;
+
+    static void
+    callback (database&, view_type&, callback_event);
+  };
+
+  // build_delay
+  //
+  template <>
+  struct class_traits< ::brep::build_delay >
+  {
+    static const class_kind kind = class_object;
+  };
+
+  template <>
+  class access::object_traits< ::brep::build_delay >
+  {
+    public:
+    typedef ::brep::build_delay object_type;
+    typedef ::std::shared_ptr< ::brep::build_delay > pointer_type;
+    typedef odb::pointer_traits<pointer_type> pointer_traits;
+
+    static const bool polymorphic = false;
+
+    typedef ::brep::build_id id_type;
+
+    static const bool auto_id = false;
+
+    static const bool abstract = false;
+
+    static id_type
+    id (const object_type&);
+
+    typedef
+    odb::pointer_cache_traits<
+      pointer_type,
+      odb::session >
+    pointer_cache_traits;
+
+    typedef
+    odb::reference_cache_traits<
+      object_type,
+      odb::session >
+    reference_cache_traits;
+
+    static void
+    callback (database&, object_type&, callback_event);
+
+    static void
+    callback (database&, const object_type&, callback_event);
+  };
+}
+
+#include <odb/details/buffer.hxx>
+
+#include <odb/pgsql/version.hxx>
+#include <odb/pgsql/forward.hxx>
+#include <odb/pgsql/binding.hxx>
+#include <odb/pgsql/pgsql-types.hxx>
+#include <odb/pgsql/query.hxx>
+
+namespace odb
+{
+  // operation_result
+  //
+  template <>
+  class access::composite_value_traits< ::bbot::operation_result, id_pgsql >
+  {
+    public:
+    typedef ::bbot::operation_result value_type;
+
+    struct image_type
+    {
+      // operation
+      //
+      details::buffer operation_value;
+      std::size_t operation_size;
+      bool operation_null;
+
+      // status
+      //
+      details::buffer status_value;
+      std::size_t status_size;
+      bool status_null;
+
+      // log
+      //
+      details::buffer log_value;
+      std::size_t log_size;
+      bool log_null;
+    };
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static bool
+    init (image_type&,
+          const value_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (value_type&,
+          const image_type&,
+          database*);
+
+    static bool
+    get_null (const image_type&);
+
+    static void
+    set_null (image_type&,
+              pgsql::statement_kind);
+
+    static const std::size_t column_count = 3UL;
+  };
+
+  // build_id
+  //
+  template <>
+  class access::composite_value_traits< ::brep::build_id, id_pgsql >
+  {
+    public:
+    typedef ::brep::build_id value_type;
+
+    struct image_type
+    {
+      // package
+      //
+      composite_value_traits< ::brep::package_id, id_pgsql >::image_type package_value;
+
+      // configuration
+      //
+      details::buffer configuration_value;
+      std::size_t configuration_size;
+      bool configuration_null;
+
+      // toolchain_name
+      //
+      details::buffer toolchain_name_value;
+      std::size_t toolchain_name_size;
+      bool toolchain_name_null;
+
+      // toolchain_version
+      //
+      composite_value_traits< ::brep::canonical_version, id_pgsql >::image_type toolchain_version_value;
+    };
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static bool
+    init (image_type&,
+          const value_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (value_type&,
+          const image_type&,
+          database*);
+
+    static bool
+    get_null (const image_type&);
+
+    static void
+    set_null (image_type&,
+              pgsql::statement_kind);
+
+    static const std::size_t column_count = 12UL;
+  };
+
+  // build
+  //
+  template <typename A>
+  struct query_columns< ::brep::build, id_pgsql, A >
+  {
+    // id
+    //
+    struct id_class_
+    {
+      id_class_ ()
+      {
+      }
+
+      // package
+      //
+      struct package_class_1_
+      {
+        package_class_1_ ()
+        {
+        }
+
+        // tenant
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::std::string,
+            pgsql::id_string >::query_type,
+          pgsql::id_string >
+        tenant_type_;
+
+        static const tenant_type_ tenant;
+
+        // name
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::bpkg::package_name,
+            pgsql::id_string >::query_type,
+          pgsql::id_string >
+        name_type_;
+
+        static const name_type_ name;
+
+        // version
+        //
+        struct version_class_2_
+        {
+          version_class_2_ ()
+          {
+          }
+
+          // epoch
+          //
+          typedef
+          pgsql::query_column<
+            pgsql::value_traits<
+              ::uint16_t,
+              pgsql::id_integer >::query_type,
+            pgsql::id_integer >
+          epoch_type_;
+
+          static const epoch_type_ epoch;
+
+          // canonical_upstream
+          //
+          typedef
+          pgsql::query_column<
+            pgsql::value_traits<
+              ::std::string,
+              pgsql::id_string >::query_type,
+            pgsql::id_string >
+          canonical_upstream_type_;
+
+          static const canonical_upstream_type_ canonical_upstream;
+
+          // canonical_release
+          //
+          typedef
+          pgsql::query_column<
+            pgsql::value_traits<
+              ::std::string,
+              pgsql::id_string >::query_type,
+            pgsql::id_string >
+          canonical_release_type_;
+
+          static const canonical_release_type_ canonical_release;
+
+          // revision
+          //
+          typedef
+          pgsql::query_column<
+            pgsql::value_traits<
+              ::uint16_t,
+              pgsql::id_integer >::query_type,
+            pgsql::id_integer >
+          revision_type_;
+
+          static const revision_type_ revision;
+        };
+
+        static const version_class_2_ version;
+      };
+
+      static const package_class_1_ package;
+
+      // configuration
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      configuration_type_;
+
+      static const configuration_type_ configuration;
+
+      // toolchain_name
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      toolchain_name_type_;
+
+      static const toolchain_name_type_ toolchain_name;
+
+      // toolchain_version
+      //
+      struct toolchain_version_class_1_
+      {
+        toolchain_version_class_1_ ()
+        {
+        }
+
+        // epoch
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::uint16_t,
+            pgsql::id_integer >::query_type,
+          pgsql::id_integer >
+        epoch_type_;
+
+        static const epoch_type_ epoch;
+
+        // canonical_upstream
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::std::string,
+            pgsql::id_string >::query_type,
+          pgsql::id_string >
+        canonical_upstream_type_;
+
+        static const canonical_upstream_type_ canonical_upstream;
+
+        // canonical_release
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::std::string,
+            pgsql::id_string >::query_type,
+          pgsql::id_string >
+        canonical_release_type_;
+
+        static const canonical_release_type_ canonical_release;
+
+        // revision
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::uint16_t,
+            pgsql::id_integer >::query_type,
+          pgsql::id_integer >
+        revision_type_;
+
+        static const revision_type_ revision;
+      };
+
+      static const toolchain_version_class_1_ toolchain_version;
+    };
+
+    static const id_class_ id;
+
+    // package_version
+    //
+    struct package_version_class_
+    {
+      package_version_class_ ()
+      {
+      }
+
+      // upstream
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      upstream_type_;
+
+      static const upstream_type_ upstream;
+
+      // release
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::basic_string< char >,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      release_type_;
+
+      static const release_type_ release;
+    };
+
+    static const package_version_class_ package_version;
+
+    // toolchain_version
+    //
+    struct toolchain_version_class_
+    {
+      toolchain_version_class_ ()
+      {
+      }
+
+      // upstream
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      upstream_type_;
+
+      static const upstream_type_ upstream;
+
+      // release
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::basic_string< char >,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      release_type_;
+
+      static const release_type_ release;
+    };
+
+    static const toolchain_version_class_ toolchain_version;
+
+    // state
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        ::std::string,
+        pgsql::id_string >::query_type,
+      pgsql::id_string >
+    state_type_;
+
+    static const state_type_ state;
+
+    // timestamp
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        ::uint64_t,
+        pgsql::id_bigint >::query_type,
+      pgsql::id_bigint >
+    timestamp_type_;
+
+    static const timestamp_type_ timestamp;
+
+    // force
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        ::std::string,
+        pgsql::id_string >::query_type,
+      pgsql::id_string >
+    force_type_;
+
+    static const force_type_ force;
+
+    // status
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        ::std::basic_string< char >,
+        pgsql::id_string >::query_type,
+      pgsql::id_string >
+    status_type_;
+
+    static const status_type_ status;
+
+    // completion_timestamp
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        ::uint64_t,
+        pgsql::id_bigint >::query_type,
+      pgsql::id_bigint >
+    completion_timestamp_type_;
+
+    static const completion_timestamp_type_ completion_timestamp;
+
+    // agent_fingerprint
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        ::std::basic_string< char >,
+        pgsql::id_string >::query_type,
+      pgsql::id_string >
+    agent_fingerprint_type_;
+
+    static const agent_fingerprint_type_ agent_fingerprint;
+
+    // agent_challenge
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        ::std::basic_string< char >,
+        pgsql::id_string >::query_type,
+      pgsql::id_string >
+    agent_challenge_type_;
+
+    static const agent_challenge_type_ agent_challenge;
+
+    // machine
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        ::std::string,
+        pgsql::id_string >::query_type,
+      pgsql::id_string >
+    machine_type_;
+
+    static const machine_type_ machine;
+
+    // machine_summary
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        ::std::string,
+        pgsql::id_string >::query_type,
+      pgsql::id_string >
+    machine_summary_type_;
+
+    static const machine_summary_type_ machine_summary;
+
+    // target
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        ::std::string,
+        pgsql::id_string >::query_type,
+      pgsql::id_string >
+    target_type_;
+
+    static const target_type_ target;
+  };
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_::tenant_type_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_::
+  tenant (A::table_name, "\"package_tenant\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_::name_type_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_::
+  name (A::table_name, "\"package_name\"", "(?)::CITEXT");
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::epoch_type_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::
+  epoch (A::table_name, "\"package_version_epoch\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::canonical_upstream_type_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::
+  canonical_upstream (A::table_name, "\"package_version_canonical_upstream\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::canonical_release_type_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::
+  canonical_release (A::table_name, "\"package_version_canonical_release\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::revision_type_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::
+  revision (A::table_name, "\"package_version_revision\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_::version_class_2_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_::version;
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::package_class_1_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::package;
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::configuration_type_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::
+  configuration (A::table_name, "\"configuration\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::toolchain_name_type_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::
+  toolchain_name (A::table_name, "\"toolchain_name\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::toolchain_version_class_1_::epoch_type_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::toolchain_version_class_1_::
+  epoch (A::table_name, "\"toolchain_version_epoch\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::toolchain_version_class_1_::canonical_upstream_type_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::toolchain_version_class_1_::
+  canonical_upstream (A::table_name, "\"toolchain_version_canonical_upstream\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::toolchain_version_class_1_::canonical_release_type_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::toolchain_version_class_1_::
+  canonical_release (A::table_name, "\"toolchain_version_canonical_release\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::toolchain_version_class_1_::revision_type_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::toolchain_version_class_1_::
+  revision (A::table_name, "\"toolchain_version_revision\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_::toolchain_version_class_1_
+  query_columns< ::brep::build, id_pgsql, A >::id_class_::toolchain_version;
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::id_class_
+  query_columns< ::brep::build, id_pgsql, A >::id;
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::package_version_class_::upstream_type_
+  query_columns< ::brep::build, id_pgsql, A >::package_version_class_::
+  upstream (A::table_name, "\"package_version_upstream\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::package_version_class_::release_type_
+  query_columns< ::brep::build, id_pgsql, A >::package_version_class_::
+  release (A::table_name, "\"package_version_release\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::package_version_class_
+  query_columns< ::brep::build, id_pgsql, A >::package_version;
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::toolchain_version_class_::upstream_type_
+  query_columns< ::brep::build, id_pgsql, A >::toolchain_version_class_::
+  upstream (A::table_name, "\"toolchain_version_upstream\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::toolchain_version_class_::release_type_
+  query_columns< ::brep::build, id_pgsql, A >::toolchain_version_class_::
+  release (A::table_name, "\"toolchain_version_release\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::toolchain_version_class_
+  query_columns< ::brep::build, id_pgsql, A >::toolchain_version;
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::state_type_
+  query_columns< ::brep::build, id_pgsql, A >::
+  state (A::table_name, "\"state\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::timestamp_type_
+  query_columns< ::brep::build, id_pgsql, A >::
+  timestamp (A::table_name, "\"timestamp\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::force_type_
+  query_columns< ::brep::build, id_pgsql, A >::
+  force (A::table_name, "\"force\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::status_type_
+  query_columns< ::brep::build, id_pgsql, A >::
+  status (A::table_name, "\"status\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::completion_timestamp_type_
+  query_columns< ::brep::build, id_pgsql, A >::
+  completion_timestamp (A::table_name, "\"completion_timestamp\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::agent_fingerprint_type_
+  query_columns< ::brep::build, id_pgsql, A >::
+  agent_fingerprint (A::table_name, "\"agent_fingerprint\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::agent_challenge_type_
+  query_columns< ::brep::build, id_pgsql, A >::
+  agent_challenge (A::table_name, "\"agent_challenge\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::machine_type_
+  query_columns< ::brep::build, id_pgsql, A >::
+  machine (A::table_name, "\"machine\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::machine_summary_type_
+  query_columns< ::brep::build, id_pgsql, A >::
+  machine_summary (A::table_name, "\"machine_summary\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build, id_pgsql, A >::target_type_
+  query_columns< ::brep::build, id_pgsql, A >::
+  target (A::table_name, "\"target\"", 0);
+
+  template <typename A>
+  struct pointer_query_columns< ::brep::build, id_pgsql, A >:
+    query_columns< ::brep::build, id_pgsql, A >
+  {
+  };
+
+  template <>
+  class access::object_traits_impl< ::brep::build, id_pgsql >:
+    public access::object_traits< ::brep::build >
+  {
+    public:
+    struct id_image_type
+    {
+      composite_value_traits< ::brep::build_id, id_pgsql >::image_type id_value;
+
+      std::size_t version;
+    };
+
+    struct image_type
+    {
+      // id
+      //
+      composite_value_traits< ::brep::build_id, id_pgsql >::image_type id_value;
+
+      // package_version
+      //
+      composite_value_traits< ::brep::upstream_version, id_pgsql >::image_type package_version_value;
+
+      // toolchain_version
+      //
+      composite_value_traits< ::brep::upstream_version, id_pgsql >::image_type toolchain_version_value;
+
+      // state
+      //
+      details::buffer state_value;
+      std::size_t state_size;
+      bool state_null;
+
+      // timestamp
+      //
+      long long timestamp_value;
+      bool timestamp_null;
+
+      // force
+      //
+      details::buffer force_value;
+      std::size_t force_size;
+      bool force_null;
+
+      // status
+      //
+      details::buffer status_value;
+      std::size_t status_size;
+      bool status_null;
+
+      // completion_timestamp
+      //
+      long long completion_timestamp_value;
+      bool completion_timestamp_null;
+
+      // agent_fingerprint
+      //
+      details::buffer agent_fingerprint_value;
+      std::size_t agent_fingerprint_size;
+      bool agent_fingerprint_null;
+
+      // agent_challenge
+      //
+      details::buffer agent_challenge_value;
+      std::size_t agent_challenge_size;
+      bool agent_challenge_null;
+
+      // machine
+      //
+      details::buffer machine_value;
+      std::size_t machine_size;
+      bool machine_null;
+
+      // machine_summary
+      //
+      details::buffer machine_summary_value;
+      std::size_t machine_summary_size;
+      bool machine_summary_null;
+
+      // target
+      //
+      details::buffer target_value;
+      std::size_t target_size;
+      bool target_null;
+
+      std::size_t version;
+    };
+
+    struct extra_statement_cache_type;
+
+    // results
+    //
+    struct results_traits
+    {
+      static const char select_name[];
+      static const char insert_name[];
+      static const char delete_name[];
+
+      static const unsigned int insert_types[];
+
+      static const std::size_t id_column_count = 12UL;
+      static const std::size_t data_column_count = 16UL;
+
+      static const bool versioned = false;
+
+      static const char insert_statement[];
+      static const char select_statement[];
+      static const char delete_statement[];
+
+      typedef ::bbot::operation_results container_type;
+      typedef
+      odb::access::container_traits<container_type>
+      container_traits_type;
+      typedef container_traits_type::index_type index_type;
+      typedef container_traits_type::value_type value_type;
+
+      typedef ordered_functions<index_type, value_type> functions_type;
+      typedef pgsql::container_statements< results_traits > statements_type;
+
+      struct data_image_type
+      {
+        // index
+        //
+        long long index_value;
+        bool index_null;
+
+        // value
+        //
+        composite_value_traits< value_type, id_pgsql >::image_type value_value;
+
+        std::size_t version;
+      };
+
+      static void
+      bind (pgsql::bind*,
+            const pgsql::bind* id,
+            std::size_t id_size,
+            data_image_type&);
+
+      static void
+      grow (data_image_type&,
+            bool*);
+
+      static void
+      init (data_image_type&,
+            index_type*,
+            const value_type&);
+
+      static void
+      init (index_type&,
+            value_type&,
+            const data_image_type&,
+            database*);
+
+      static void
+      insert (index_type, const value_type&, void*);
+
+      static bool
+      select (index_type&, value_type&, void*);
+
+      static void
+      delete_ (void*);
+
+      static void
+      persist (const container_type&,
+               statements_type&);
+
+      static void
+      load (container_type&,
+            statements_type&);
+
+      static void
+      update (const container_type&,
+              statements_type&);
+
+      static void
+      erase (statements_type&);
+    };
+
+    // results_section
+    //
+    struct results_section_traits
+    {
+      typedef object_traits_impl<object_type, id_pgsql>::image_type image_type;
+      typedef object_traits_impl<object_type, id_pgsql>::id_image_type id_image_type;
+
+      static const std::size_t id_column_count = 12UL;
+      static const std::size_t managed_optimistic_load_column_count = 0UL;
+      static const std::size_t load_column_count = 0UL;
+      static const std::size_t managed_optimistic_update_column_count = 0UL;
+      static const std::size_t update_column_count = 0UL;
+
+      static const bool versioned = false;
+
+      static void
+      load (extra_statement_cache_type&, object_type&);
+
+      static void
+      update (extra_statement_cache_type&, const object_type&);
+    };
+
+    using object_traits<object_type>::id;
+
+    static id_type
+    id (const image_type&);
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static void
+    bind (pgsql::bind*, id_image_type&);
+
+    static bool
+    init (image_type&,
+          const object_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (object_type&,
+          const image_type&,
+          database*);
+
+    static void
+    init (id_image_type&, const id_type&);
+
+    typedef pgsql::object_statements<object_type> statements_type;
+
+    typedef pgsql::query_base query_base_type;
+
+    static const std::size_t column_count = 26UL;
+    static const std::size_t id_column_count = 12UL;
+    static const std::size_t inverse_column_count = 0UL;
+    static const std::size_t readonly_column_count = 0UL;
+    static const std::size_t managed_optimistic_column_count = 0UL;
+
+    static const std::size_t separate_load_column_count = 0UL;
+    static const std::size_t separate_update_column_count = 0UL;
+
+    static const bool versioned = false;
+
+    static const char persist_statement[];
+    static const char find_statement[];
+    static const char update_statement[];
+    static const char erase_statement[];
+    static const char query_statement[];
+    static const char erase_query_statement[];
+
+    static const char table_name[];
+
+    static void
+    persist (database&, const object_type&);
+
+    static pointer_type
+    find (database&, const id_type&);
+
+    static bool
+    find (database&, const id_type&, object_type&);
+
+    static bool
+    reload (database&, object_type&);
+
+    static void
+    update (database&, const object_type&);
+
+    static void
+    erase (database&, const id_type&);
+
+    static void
+    erase (database&, const object_type&);
+
+    static bool
+    load (connection&, object_type&, section&);
+
+    static bool
+    update (connection&, const object_type&, const section&);
+
+    static result<object_type>
+    query (database&, const query_base_type&);
+
+    static unsigned long long
+    erase_query (database&, const query_base_type&);
+
+    static odb::details::shared_ptr<prepared_query_impl>
+    prepare_query (connection&, const char*, const query_base_type&);
+
+    static odb::details::shared_ptr<result_impl>
+    execute_query (prepared_query_impl&);
+
+    static const char persist_statement_name[];
+    static const char find_statement_name[];
+    static const char update_statement_name[];
+    static const char erase_statement_name[];
+    static const char query_statement_name[];
+    static const char erase_query_statement_name[];
+
+    static const unsigned int persist_statement_types[];
+    static const unsigned int find_statement_types[];
+    static const unsigned int update_statement_types[];
+
+    public:
+    static bool
+    find_ (statements_type&,
+           const id_type*);
+
+    static void
+    load_ (statements_type&,
+           object_type&,
+           bool reload);
+  };
+
+  template <>
+  class access::object_traits_impl< ::brep::build, id_common >:
+    public access::object_traits_impl< ::brep::build, id_pgsql >
+  {
+  };
+
+  // toolchain
+  //
+  template <>
+  class access::view_traits_impl< ::brep::toolchain, id_pgsql >:
+    public access::view_traits< ::brep::toolchain >
+  {
+    public:
+    struct image_type
+    {
+      // name
+      //
+      details::buffer name_value;
+      std::size_t name_size;
+      bool name_null;
+
+      // epoch
+      //
+      int epoch_value;
+      bool epoch_null;
+
+      // canonical_upstream
+      //
+      details::buffer canonical_upstream_value;
+      std::size_t canonical_upstream_size;
+      bool canonical_upstream_null;
+
+      // canonical_release
+      //
+      details::buffer canonical_release_value;
+      std::size_t canonical_release_size;
+      bool canonical_release_null;
+
+      // revision
+      //
+      int revision_value;
+      bool revision_null;
+
+      // version
+      //
+      composite_value_traits< ::brep::upstream_version, id_pgsql >::image_type version_value;
+
+      std::size_t version;
+    };
+
+    typedef pgsql::view_statements<view_type> statements_type;
+
+    typedef pgsql::query_base query_base_type;
+    struct query_columns;
+
+    static const bool versioned = false;
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&);
+
+    static void
+    init (view_type&,
+          const image_type&,
+          database*);
+
+    static const std::size_t column_count = 7UL;
+
+    static query_base_type
+    query_statement (const query_base_type&);
+
+    static result<view_type>
+    query (database&, const query_base_type&);
+
+    static odb::details::shared_ptr<prepared_query_impl>
+    prepare_query (connection&, const char*, const query_base_type&);
+
+    static odb::details::shared_ptr<result_impl>
+    execute_query (prepared_query_impl&);
+
+    static const char query_statement_name[];
+  };
+
+  template <>
+  class access::view_traits_impl< ::brep::toolchain, id_common >:
+    public access::view_traits_impl< ::brep::toolchain, id_pgsql >
+  {
+  };
+
+  // package_build
+  //
+  template <>
+  class access::view_traits_impl< ::brep::package_build, id_pgsql >:
+    public access::view_traits< ::brep::package_build >
+  {
+    public:
+    struct image_type
+    {
+      // build
+      //
+      object_traits_impl< ::brep::build, id_pgsql >::image_type build_value;
+
+      std::size_t version;
+    };
+
+    typedef pgsql::view_statements<view_type> statements_type;
+
+    typedef pgsql::query_base query_base_type;
+    struct query_columns;
+
+    static const bool versioned = false;
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&);
+
+    static void
+    init (view_type&,
+          const image_type&,
+          database*);
+
+    static const std::size_t column_count = 26UL;
+
+    static query_base_type
+    query_statement (const query_base_type&);
+
+    static result<view_type>
+    query (database&, const query_base_type&);
+
+    static odb::details::shared_ptr<prepared_query_impl>
+    prepare_query (connection&, const char*, const query_base_type&);
+
+    static odb::details::shared_ptr<result_impl>
+    execute_query (prepared_query_impl&);
+
+    static const char query_statement_name[];
+  };
+
+  template <>
+  class access::view_traits_impl< ::brep::package_build, id_common >:
+    public access::view_traits_impl< ::brep::package_build, id_pgsql >
+  {
+  };
+
+  // package_build_count
+  //
+  template <>
+  class access::view_traits_impl< ::brep::package_build_count, id_pgsql >:
+    public access::view_traits< ::brep::package_build_count >
+  {
+    public:
+    struct image_type
+    {
+      // result
+      //
+      long long result_value;
+      bool result_null;
+
+      std::size_t version;
+    };
+
+    typedef pgsql::view_statements<view_type> statements_type;
+
+    typedef pgsql::query_base query_base_type;
+    struct query_columns;
+
+    static const bool versioned = false;
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&);
+
+    static void
+    init (view_type&,
+          const image_type&,
+          database*);
+
+    static const std::size_t column_count = 1UL;
+
+    static query_base_type
+    query_statement (const query_base_type&);
+
+    static result<view_type>
+    query (database&, const query_base_type&);
+
+    static odb::details::shared_ptr<prepared_query_impl>
+    prepare_query (connection&, const char*, const query_base_type&);
+
+    static odb::details::shared_ptr<result_impl>
+    execute_query (prepared_query_impl&);
+
+    static const char query_statement_name[];
+  };
+
+  template <>
+  class access::view_traits_impl< ::brep::package_build_count, id_common >:
+    public access::view_traits_impl< ::brep::package_build_count, id_pgsql >
+  {
+  };
+
+  // build_delay
+  //
+  template <typename A>
+  struct query_columns< ::brep::build_delay, id_pgsql, A >
+  {
+    // id
+    //
+    struct id_class_
+    {
+      id_class_ ()
+      {
+      }
+
+      // package
+      //
+      struct package_class_1_
+      {
+        package_class_1_ ()
+        {
+        }
+
+        // tenant
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::std::string,
+            pgsql::id_string >::query_type,
+          pgsql::id_string >
+        tenant_type_;
+
+        static const tenant_type_ tenant;
+
+        // name
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::bpkg::package_name,
+            pgsql::id_string >::query_type,
+          pgsql::id_string >
+        name_type_;
+
+        static const name_type_ name;
+
+        // version
+        //
+        struct version_class_2_
+        {
+          version_class_2_ ()
+          {
+          }
+
+          // epoch
+          //
+          typedef
+          pgsql::query_column<
+            pgsql::value_traits<
+              ::uint16_t,
+              pgsql::id_integer >::query_type,
+            pgsql::id_integer >
+          epoch_type_;
+
+          static const epoch_type_ epoch;
+
+          // canonical_upstream
+          //
+          typedef
+          pgsql::query_column<
+            pgsql::value_traits<
+              ::std::string,
+              pgsql::id_string >::query_type,
+            pgsql::id_string >
+          canonical_upstream_type_;
+
+          static const canonical_upstream_type_ canonical_upstream;
+
+          // canonical_release
+          //
+          typedef
+          pgsql::query_column<
+            pgsql::value_traits<
+              ::std::string,
+              pgsql::id_string >::query_type,
+            pgsql::id_string >
+          canonical_release_type_;
+
+          static const canonical_release_type_ canonical_release;
+
+          // revision
+          //
+          typedef
+          pgsql::query_column<
+            pgsql::value_traits<
+              ::uint16_t,
+              pgsql::id_integer >::query_type,
+            pgsql::id_integer >
+          revision_type_;
+
+          static const revision_type_ revision;
+        };
+
+        static const version_class_2_ version;
+      };
+
+      static const package_class_1_ package;
+
+      // configuration
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      configuration_type_;
+
+      static const configuration_type_ configuration;
+
+      // toolchain_name
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      toolchain_name_type_;
+
+      static const toolchain_name_type_ toolchain_name;
+
+      // toolchain_version
+      //
+      struct toolchain_version_class_1_
+      {
+        toolchain_version_class_1_ ()
+        {
+        }
+
+        // epoch
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::uint16_t,
+            pgsql::id_integer >::query_type,
+          pgsql::id_integer >
+        epoch_type_;
+
+        static const epoch_type_ epoch;
+
+        // canonical_upstream
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::std::string,
+            pgsql::id_string >::query_type,
+          pgsql::id_string >
+        canonical_upstream_type_;
+
+        static const canonical_upstream_type_ canonical_upstream;
+
+        // canonical_release
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::std::string,
+            pgsql::id_string >::query_type,
+          pgsql::id_string >
+        canonical_release_type_;
+
+        static const canonical_release_type_ canonical_release;
+
+        // revision
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::uint16_t,
+            pgsql::id_integer >::query_type,
+          pgsql::id_integer >
+        revision_type_;
+
+        static const revision_type_ revision;
+      };
+
+      static const toolchain_version_class_1_ toolchain_version;
+    };
+
+    static const id_class_ id;
+
+    // package_version
+    //
+    struct package_version_class_
+    {
+      package_version_class_ ()
+      {
+      }
+
+      // upstream
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      upstream_type_;
+
+      static const upstream_type_ upstream;
+
+      // release
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::basic_string< char >,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      release_type_;
+
+      static const release_type_ release;
+    };
+
+    static const package_version_class_ package_version;
+
+    // toolchain_version
+    //
+    struct toolchain_version_class_
+    {
+      toolchain_version_class_ ()
+      {
+      }
+
+      // upstream
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      upstream_type_;
+
+      static const upstream_type_ upstream;
+
+      // release
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::basic_string< char >,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      release_type_;
+
+      static const release_type_ release;
+    };
+
+    static const toolchain_version_class_ toolchain_version;
+
+    // report_timestamp
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        ::uint64_t,
+        pgsql::id_bigint >::query_type,
+      pgsql::id_bigint >
+    report_timestamp_type_;
+
+    static const report_timestamp_type_ report_timestamp;
+
+    // package_timestamp
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        ::uint64_t,
+        pgsql::id_bigint >::query_type,
+      pgsql::id_bigint >
+    package_timestamp_type_;
+
+    static const package_timestamp_type_ package_timestamp;
+  };
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_::tenant_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_::
+  tenant (A::table_name, "\"package_tenant\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_::name_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_::
+  name (A::table_name, "\"package_name\"", "(?)::CITEXT");
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::epoch_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::
+  epoch (A::table_name, "\"package_version_epoch\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::canonical_upstream_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::
+  canonical_upstream (A::table_name, "\"package_version_canonical_upstream\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::canonical_release_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::
+  canonical_release (A::table_name, "\"package_version_canonical_release\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::revision_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_::version_class_2_::
+  revision (A::table_name, "\"package_version_revision\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_::version_class_2_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_::version;
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package_class_1_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::package;
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::configuration_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::
+  configuration (A::table_name, "\"configuration\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::toolchain_name_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::
+  toolchain_name (A::table_name, "\"toolchain_name\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::toolchain_version_class_1_::epoch_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::toolchain_version_class_1_::
+  epoch (A::table_name, "\"toolchain_version_epoch\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::toolchain_version_class_1_::canonical_upstream_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::toolchain_version_class_1_::
+  canonical_upstream (A::table_name, "\"toolchain_version_canonical_upstream\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::toolchain_version_class_1_::canonical_release_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::toolchain_version_class_1_::
+  canonical_release (A::table_name, "\"toolchain_version_canonical_release\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::toolchain_version_class_1_::revision_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::toolchain_version_class_1_::
+  revision (A::table_name, "\"toolchain_version_revision\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::toolchain_version_class_1_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id_class_::toolchain_version;
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::id_class_
+  query_columns< ::brep::build_delay, id_pgsql, A >::id;
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::package_version_class_::upstream_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::package_version_class_::
+  upstream (A::table_name, "\"package_version_upstream\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::package_version_class_::release_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::package_version_class_::
+  release (A::table_name, "\"package_version_release\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::package_version_class_
+  query_columns< ::brep::build_delay, id_pgsql, A >::package_version;
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::toolchain_version_class_::upstream_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::toolchain_version_class_::
+  upstream (A::table_name, "\"toolchain_version_upstream\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::toolchain_version_class_::release_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::toolchain_version_class_::
+  release (A::table_name, "\"toolchain_version_release\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::toolchain_version_class_
+  query_columns< ::brep::build_delay, id_pgsql, A >::toolchain_version;
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::report_timestamp_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::
+  report_timestamp (A::table_name, "\"report_timestamp\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_delay, id_pgsql, A >::package_timestamp_type_
+  query_columns< ::brep::build_delay, id_pgsql, A >::
+  package_timestamp (A::table_name, "\"package_timestamp\"", 0);
+
+  template <typename A>
+  struct pointer_query_columns< ::brep::build_delay, id_pgsql, A >:
+    query_columns< ::brep::build_delay, id_pgsql, A >
+  {
+  };
+
+  template <>
+  class access::object_traits_impl< ::brep::build_delay, id_pgsql >:
+    public access::object_traits< ::brep::build_delay >
+  {
+    public:
+    struct id_image_type
+    {
+      composite_value_traits< ::brep::build_id, id_pgsql >::image_type id_value;
+
+      std::size_t version;
+    };
+
+    struct image_type
+    {
+      // id
+      //
+      composite_value_traits< ::brep::build_id, id_pgsql >::image_type id_value;
+
+      // package_version
+      //
+      composite_value_traits< ::brep::upstream_version, id_pgsql >::image_type package_version_value;
+
+      // toolchain_version
+      //
+      composite_value_traits< ::brep::upstream_version, id_pgsql >::image_type toolchain_version_value;
+
+      // report_timestamp
+      //
+      long long report_timestamp_value;
+      bool report_timestamp_null;
+
+      // package_timestamp
+      //
+      long long package_timestamp_value;
+      bool package_timestamp_null;
+
+      std::size_t version;
+    };
+
+    struct extra_statement_cache_type;
+
+    using object_traits<object_type>::id;
+
+    static id_type
+    id (const image_type&);
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static void
+    bind (pgsql::bind*, id_image_type&);
+
+    static bool
+    init (image_type&,
+          const object_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (object_type&,
+          const image_type&,
+          database*);
+
+    static void
+    init (id_image_type&, const id_type&);
+
+    typedef pgsql::object_statements<object_type> statements_type;
+
+    typedef pgsql::query_base query_base_type;
+
+    static const std::size_t column_count = 18UL;
+    static const std::size_t id_column_count = 12UL;
+    static const std::size_t inverse_column_count = 0UL;
+    static const std::size_t readonly_column_count = 0UL;
+    static const std::size_t managed_optimistic_column_count = 0UL;
+
+    static const std::size_t separate_load_column_count = 0UL;
+    static const std::size_t separate_update_column_count = 0UL;
+
+    static const bool versioned = false;
+
+    static const char persist_statement[];
+    static const char find_statement[];
+    static const char update_statement[];
+    static const char erase_statement[];
+    static const char query_statement[];
+    static const char erase_query_statement[];
+
+    static const char table_name[];
+
+    static void
+    persist (database&, const object_type&);
+
+    static pointer_type
+    find (database&, const id_type&);
+
+    static bool
+    find (database&, const id_type&, object_type&);
+
+    static bool
+    reload (database&, object_type&);
+
+    static void
+    update (database&, const object_type&);
+
+    static void
+    erase (database&, const id_type&);
+
+    static void
+    erase (database&, const object_type&);
+
+    static result<object_type>
+    query (database&, const query_base_type&);
+
+    static unsigned long long
+    erase_query (database&, const query_base_type&);
+
+    static odb::details::shared_ptr<prepared_query_impl>
+    prepare_query (connection&, const char*, const query_base_type&);
+
+    static odb::details::shared_ptr<result_impl>
+    execute_query (prepared_query_impl&);
+
+    static const char persist_statement_name[];
+    static const char find_statement_name[];
+    static const char update_statement_name[];
+    static const char erase_statement_name[];
+    static const char query_statement_name[];
+    static const char erase_query_statement_name[];
+
+    static const unsigned int persist_statement_types[];
+    static const unsigned int find_statement_types[];
+    static const unsigned int update_statement_types[];
+
+    public:
+    static bool
+    find_ (statements_type&,
+           const id_type*);
+
+    static void
+    load_ (statements_type&,
+           object_type&,
+           bool reload);
+  };
+
+  template <>
+  class access::object_traits_impl< ::brep::build_delay, id_common >:
+    public access::object_traits_impl< ::brep::build_delay, id_pgsql >
+  {
+  };
+
+  // build
+  //
+  // toolchain
+  //
+  struct access::view_traits_impl< ::brep::toolchain, id_pgsql >::query_columns
+  {
+    // build
+    //
+    typedef
+    odb::pointer_query_columns<
+      ::brep::build,
+      id_pgsql,
+      odb::access::object_traits_impl< ::brep::build, id_pgsql > >
+    build;
+
+    // build_package
+    //
+    typedef
+    odb::pointer_query_columns<
+      ::brep::build_package,
+      id_pgsql,
+      odb::access::object_traits_impl< ::brep::build_package, id_pgsql > >
+    build_package;
+  };
+
+  // package_build
+  //
+  struct access::view_traits_impl< ::brep::package_build, id_pgsql >::query_columns
+  {
+    // build
+    //
+    typedef
+    odb::pointer_query_columns<
+      ::brep::build,
+      id_pgsql,
+      odb::access::object_traits_impl< ::brep::build, id_pgsql > >
+    build;
+
+    // build_package
+    //
+    typedef
+    odb::pointer_query_columns<
+      ::brep::build_package,
+      id_pgsql,
+      odb::access::object_traits_impl< ::brep::build_package, id_pgsql > >
+    build_package;
+
+    // build_tenant
+    //
+    typedef
+    odb::pointer_query_columns<
+      ::brep::build_tenant,
+      id_pgsql,
+      odb::access::object_traits_impl< ::brep::build_tenant, id_pgsql > >
+    build_tenant;
+  };
+
+  // package_build_count
+  //
+  struct access::view_traits_impl< ::brep::package_build_count, id_pgsql >::query_columns
+  {
+    // build
+    //
+    typedef
+    odb::pointer_query_columns<
+      ::brep::build,
+      id_pgsql,
+      odb::access::object_traits_impl< ::brep::build, id_pgsql > >
+    build;
+
+    // build_package
+    //
+    typedef
+    odb::pointer_query_columns<
+      ::brep::build_package,
+      id_pgsql,
+      odb::access::object_traits_impl< ::brep::build_package, id_pgsql > >
+    build_package;
+
+    // build_tenant
+    //
+    typedef
+    odb::pointer_query_columns<
+      ::brep::build_tenant,
+      id_pgsql,
+      odb::access::object_traits_impl< ::brep::build_tenant, id_pgsql > >
+    build_tenant;
+  };
+
+  // build_delay
+  //
+}
+
+#include <libbrep/build-odb.ixx>
+
+#include <odb/post.hxx>
+
+#endif // LIBBREP_BUILD_ODB_HXX
diff --git a/libbrep/build-odb.ixx b/libbrep/build-odb.ixx
new file mode 100644
index 0000000..a1fe977
--- /dev/null
+++ b/libbrep/build-odb.ixx
@@ -0,0 +1,207 @@
+// -*- C++ -*-
+//
+// This file was generated by ODB, object-relational mapping (ORM)
+// compiler for C++.
+//
+
+namespace odb
+{
+  // build
+  //
+
+  inline
+  access::object_traits< ::brep::build >::id_type
+  access::object_traits< ::brep::build >::
+  id (const object_type& o)
+  {
+    return o.id;
+  }
+
+  inline
+  void access::object_traits< ::brep::build >::
+  callback (database& db, object_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+
+  inline
+  void access::object_traits< ::brep::build >::
+  callback (database& db, const object_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+
+  // toolchain
+  //
+
+  inline
+  void access::view_traits< ::brep::toolchain >::
+  callback (database& db, view_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+
+  // package_build
+  //
+
+  inline
+  void access::view_traits< ::brep::package_build >::
+  callback (database& db, view_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+
+  // package_build_count
+  //
+
+  inline
+  void access::view_traits< ::brep::package_build_count >::
+  callback (database& db, view_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+
+  // build_delay
+  //
+
+  inline
+  access::object_traits< ::brep::build_delay >::id_type
+  access::object_traits< ::brep::build_delay >::
+  id (const object_type& o)
+  {
+    return o.id;
+  }
+
+  inline
+  void access::object_traits< ::brep::build_delay >::
+  callback (database& db, object_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+
+  inline
+  void access::object_traits< ::brep::build_delay >::
+  callback (database& db, const object_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+}
+
+namespace odb
+{
+  // operation_result
+  //
+
+  inline
+  bool access::composite_value_traits< ::bbot::operation_result, id_pgsql >::
+  get_null (const image_type& i)
+  {
+    bool r (true);
+    r = r && i.operation_null;
+    r = r && i.status_null;
+    r = r && i.log_null;
+    return r;
+  }
+
+  inline
+  void access::composite_value_traits< ::bbot::operation_result, id_pgsql >::
+  set_null (image_type& i,
+            pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    i.operation_null = true;
+    i.status_null = true;
+    i.log_null = true;
+  }
+
+  // build_id
+  //
+
+  inline
+  bool access::composite_value_traits< ::brep::build_id, id_pgsql >::
+  get_null (const image_type& i)
+  {
+    bool r (true);
+    r = r && composite_value_traits< ::brep::package_id, id_pgsql >::get_null (i.package_value);
+    r = r && i.configuration_null;
+    r = r && i.toolchain_name_null;
+    r = r && composite_value_traits< ::brep::canonical_version, id_pgsql >::get_null (i.toolchain_version_value);
+    return r;
+  }
+
+  inline
+  void access::composite_value_traits< ::brep::build_id, id_pgsql >::
+  set_null (image_type& i,
+            pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    composite_value_traits< ::brep::package_id, id_pgsql >::set_null (i.package_value, sk);
+    i.configuration_null = true;
+    i.toolchain_name_null = true;
+    composite_value_traits< ::brep::canonical_version, id_pgsql >::set_null (i.toolchain_version_value, sk);
+  }
+
+  // build
+  //
+
+  inline
+  void access::object_traits_impl< ::brep::build, id_pgsql >::
+  erase (database& db, const object_type& obj)
+  {
+    callback (db, obj, callback_event::pre_erase);
+    erase (db, id (obj));
+    callback (db, obj, callback_event::post_erase);
+  }
+
+  // toolchain
+  //
+
+  // package_build
+  //
+
+  // package_build_count
+  //
+
+  // build_delay
+  //
+
+  inline
+  void access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  erase (database& db, const object_type& obj)
+  {
+    callback (db, obj, callback_event::pre_erase);
+    erase (db, id (obj));
+    callback (db, obj, callback_event::post_erase);
+  }
+
+  inline
+  void access::object_traits_impl< ::brep::build_delay, id_pgsql >::
+  load_ (statements_type& sts,
+         object_type& obj,
+         bool)
+  {
+    ODB_POTENTIALLY_UNUSED (sts);
+    ODB_POTENTIALLY_UNUSED (obj);
+  }
+}
+
diff --git a/libbrep/build-package-odb.cxx b/libbrep/build-package-odb.cxx
new file mode 100644
index 0000000..8b6e3ca
--- /dev/null
+++ b/libbrep/build-package-odb.cxx
@@ -0,0 +1,3988 @@
+// -*- C++ -*-
+//
+// This file was generated by ODB, object-relational mapping (ORM)
+// compiler for C++.
+//
+
+#include <odb/pre.hxx>
+
+#include <libbrep/build-package-odb.hxx>
+
+#include <cassert>
+#include <cstring>  // std::memcpy
+
+
+#include <odb/pgsql/traits.hxx>
+#include <odb/pgsql/database.hxx>
+#include <odb/pgsql/transaction.hxx>
+#include <odb/pgsql/connection.hxx>
+#include <odb/pgsql/statement.hxx>
+#include <odb/pgsql/statement-cache.hxx>
+#include <odb/pgsql/simple-object-statements.hxx>
+#include <odb/pgsql/view-statements.hxx>
+#include <odb/pgsql/container-statements.hxx>
+#include <odb/pgsql/exceptions.hxx>
+#include <odb/pgsql/prepared-query.hxx>
+#include <odb/pgsql/simple-object-result.hxx>
+#include <odb/pgsql/view-result.hxx>
+
+namespace odb
+{
+  // build_tenant
+  //
+
+  const char access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  persist_statement_name[] = "persist_brep_build_tenant";
+
+  const char access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  find_statement_name[] = "find_brep_build_tenant";
+
+  const char access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  erase_statement_name[] = "erase_brep_build_tenant";
+
+  const char access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  query_statement_name[] = "query_brep_build_tenant";
+
+  const char access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  erase_query_statement_name[] = "erase_query_brep_build_tenant";
+
+  const unsigned int access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  persist_statement_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::bool_oid
+  };
+
+  const unsigned int access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  find_statement_types[] =
+  {
+    pgsql::text_oid
+  };
+
+  struct access::object_traits_impl< ::brep::build_tenant, id_pgsql >::extra_statement_cache_type
+  {
+    extra_statement_cache_type (
+      pgsql::connection&,
+      image_type&,
+      id_image_type&,
+      pgsql::binding&,
+      pgsql::binding&,
+      pgsql::native_binding&,
+      const unsigned int*)
+    {
+    }
+  };
+
+  access::object_traits_impl< ::brep::build_tenant, id_pgsql >::id_type
+  access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  id (const image_type& i)
+  {
+    pgsql::database* db (0);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    id_type id;
+    {
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        id,
+        i.id_value,
+        i.id_size,
+        i.id_null);
+    }
+
+    return id;
+  }
+
+  bool access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // id
+    //
+    if (t[0UL])
+    {
+      i.id_value.capacity (i.id_size);
+      grew = true;
+    }
+
+    // archived
+    //
+    t[1UL] = 0;
+
+    return grew;
+  }
+
+  void access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    assert (sk != statement_update);
+
+    std::size_t n (0);
+
+    // id
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.id_value.data ();
+    b[n].capacity = i.id_value.capacity ();
+    b[n].size = &i.id_size;
+    b[n].is_null = &i.id_null;
+    n++;
+
+    // archived
+    //
+    b[n].type = pgsql::bind::boolean_;
+    b[n].buffer = &i.archived_value;
+    b[n].is_null = &i.archived_null;
+    n++;
+  }
+
+  void access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  bind (pgsql::bind* b, id_image_type& i)
+  {
+    std::size_t n (0);
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.id_value.data ();
+    b[n].capacity = i.id_value.capacity ();
+    b[n].size = &i.id_size;
+    b[n].is_null = &i.id_null;
+  }
+
+  bool access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  init (image_type& i,
+        const object_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    assert (sk != statement_update);
+
+    bool grew (false);
+
+    // id
+    //
+    {
+      ::std::string const& v =
+        o.id;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.id_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.id_value,
+        size,
+        is_null,
+        v);
+      i.id_null = is_null;
+      i.id_size = size;
+      grew = grew || (cap != i.id_value.capacity ());
+    }
+
+    // archived
+    //
+    {
+      bool const& v =
+        o.archived;
+
+      bool is_null (false);
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_image (
+        i.archived_value, is_null, v);
+      i.archived_null = is_null;
+    }
+
+    return grew;
+  }
+
+  void access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  init (object_type& o,
+        const image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // id
+    //
+    {
+      ::std::string& v =
+        o.id;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.id_value,
+        i.id_size,
+        i.id_null);
+    }
+
+    // archived
+    //
+    {
+      bool& v =
+        o.archived;
+
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_value (
+        v,
+        i.archived_value,
+        i.archived_null);
+    }
+  }
+
+  void access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  init (id_image_type& i, const id_type& id)
+  {
+    bool grew (false);
+    {
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.id_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.id_value,
+        size,
+        is_null,
+        id);
+      i.id_null = is_null;
+      i.id_size = size;
+      grew = grew || (cap != i.id_value.capacity ());
+    }
+
+    if (grew)
+      i.version++;
+  }
+
+  const char access::object_traits_impl< ::brep::build_tenant, id_pgsql >::persist_statement[] =
+  "INSERT INTO \"build_tenant\" "
+  "(\"id\", "
+  "\"archived\") "
+  "VALUES "
+  "($1, $2)";
+
+  const char access::object_traits_impl< ::brep::build_tenant, id_pgsql >::find_statement[] =
+  "SELECT "
+  "\"build_tenant\".\"id\", "
+  "\"build_tenant\".\"archived\" "
+  "FROM \"build_tenant\" "
+  "WHERE \"build_tenant\".\"id\"=$1";
+
+  const char access::object_traits_impl< ::brep::build_tenant, id_pgsql >::erase_statement[] =
+  "DELETE FROM \"build_tenant\" "
+  "WHERE \"id\"=$1";
+
+  const char access::object_traits_impl< ::brep::build_tenant, id_pgsql >::query_statement[] =
+  "SELECT "
+  "\"build_tenant\".\"id\", "
+  "\"build_tenant\".\"archived\" "
+  "FROM \"build_tenant\"";
+
+  const char access::object_traits_impl< ::brep::build_tenant, id_pgsql >::erase_query_statement[] =
+  "DELETE FROM \"build_tenant\"";
+
+  const char access::object_traits_impl< ::brep::build_tenant, id_pgsql >::table_name[] =
+  "\"build_tenant\"";
+
+  void access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  persist (database& db, const object_type& obj)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    callback (db,
+              obj,
+              callback_event::pre_persist);
+
+    image_type& im (sts.image ());
+    binding& imb (sts.insert_image_binding ());
+
+    if (init (im, obj, statement_insert))
+      im.version++;
+
+    if (im.version != sts.insert_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_insert);
+      sts.insert_image_version (im.version);
+      imb.version++;
+    }
+
+    insert_statement& st (sts.persist_statement ());
+    if (!st.execute ())
+      throw object_already_persistent ();
+
+    callback (db,
+              obj,
+              callback_event::post_persist);
+  }
+
+  void access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  erase (database& db, const id_type& id)
+  {
+    using namespace pgsql;
+
+    ODB_POTENTIALLY_UNUSED (db);
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    id_image_type& i (sts.id_image ());
+    init (i, id);
+
+    binding& idb (sts.id_image_binding ());
+    if (i.version != sts.id_image_version () || idb.version == 0)
+    {
+      bind (idb.bind, i);
+      sts.id_image_version (i.version);
+      idb.version++;
+    }
+
+    if (sts.erase_statement ().execute () != 1)
+      throw object_not_persistent ();
+
+    pointer_cache_traits::erase (db, id);
+  }
+
+  access::object_traits_impl< ::brep::build_tenant, id_pgsql >::pointer_type
+  access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  find (database& db, const id_type& id)
+  {
+    using namespace pgsql;
+
+    {
+      pointer_type p (pointer_cache_traits::find (db, id));
+
+      if (!pointer_traits::null_ptr (p))
+        return p;
+    }
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+
+    if (l.locked ())
+    {
+      if (!find_ (sts, &id))
+        return pointer_type ();
+    }
+
+    pointer_type p (
+      access::object_factory<object_type, pointer_type>::create ());
+    pointer_traits::guard pg (p);
+
+    pointer_cache_traits::insert_guard ig (
+      pointer_cache_traits::insert (db, id, p));
+
+    object_type& obj (pointer_traits::get_ref (p));
+
+    if (l.locked ())
+    {
+      select_statement& st (sts.find_statement ());
+      ODB_POTENTIALLY_UNUSED (st);
+
+      callback (db, obj, callback_event::pre_load);
+      init (obj, sts.image (), &db);
+      load_ (sts, obj, false);
+      sts.load_delayed (0);
+      l.unlock ();
+      callback (db, obj, callback_event::post_load);
+      pointer_cache_traits::load (ig.position ());
+    }
+    else
+      sts.delay_load (id, obj, ig.position ());
+
+    ig.release ();
+    pg.release ();
+    return p;
+  }
+
+  bool access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  find (database& db, const id_type& id, object_type& obj)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+    assert (l.locked ()) /* Must be a top-level call. */;
+
+    if (!find_ (sts, &id))
+      return false;
+
+    select_statement& st (sts.find_statement ());
+    ODB_POTENTIALLY_UNUSED (st);
+
+    reference_cache_traits::position_type pos (
+      reference_cache_traits::insert (db, id, obj));
+    reference_cache_traits::insert_guard ig (pos);
+
+    callback (db, obj, callback_event::pre_load);
+    init (obj, sts.image (), &db);
+    load_ (sts, obj, false);
+    sts.load_delayed (0);
+    l.unlock ();
+    callback (db, obj, callback_event::post_load);
+    reference_cache_traits::load (pos);
+    ig.release ();
+    return true;
+  }
+
+  bool access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  reload (database& db, object_type& obj)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+    assert (l.locked ()) /* Must be a top-level call. */;
+
+    const id_type& id (object_traits_impl::id (obj));
+    if (!find_ (sts, &id))
+      return false;
+
+    select_statement& st (sts.find_statement ());
+    ODB_POTENTIALLY_UNUSED (st);
+
+    callback (db, obj, callback_event::pre_load);
+    init (obj, sts.image (), &db);
+    load_ (sts, obj, true);
+    sts.load_delayed (0);
+    l.unlock ();
+    callback (db, obj, callback_event::post_load);
+    return true;
+  }
+
+  bool access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  find_ (statements_type& sts,
+         const id_type* id)
+  {
+    using namespace pgsql;
+
+    id_image_type& i (sts.id_image ());
+    init (i, *id);
+
+    binding& idb (sts.id_image_binding ());
+    if (i.version != sts.id_image_version () || idb.version == 0)
+    {
+      bind (idb.bind, i);
+      sts.id_image_version (i.version);
+      idb.version++;
+    }
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    select_statement& st (sts.find_statement ());
+
+    st.execute ();
+    auto_result ar (st);
+    select_statement::result r (st.fetch ());
+
+    if (r == select_statement::truncated)
+    {
+      if (grow (im, sts.select_image_truncated ()))
+        im.version++;
+
+      if (im.version != sts.select_image_version ())
+      {
+        bind (imb.bind, im, statement_select);
+        sts.select_image_version (im.version);
+        imb.version++;
+        st.refetch ();
+      }
+    }
+
+    return r != select_statement::no_data;
+  }
+
+  result< access::object_traits_impl< ::brep::build_tenant, id_pgsql >::object_type >
+  access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    std::string text (query_statement);
+    if (!q.empty ())
+    {
+      text += " ";
+      text += q.clause ();
+    }
+
+    q.init_parameters ();
+    shared_ptr<select_statement> st (
+      new (shared) select_statement (
+        sts.connection (),
+        query_statement_name,
+        text,
+        false,
+        true,
+        q.parameter_types (),
+        q.parameter_count (),
+        q.parameters_binding (),
+        imb));
+
+    st->execute ();
+    st->deallocate ();
+
+    shared_ptr< odb::object_result_impl<object_type> > r (
+      new (shared) pgsql::object_result_impl<object_type> (
+        q, st, sts, 0));
+
+    return result<object_type> (r);
+  }
+
+  unsigned long long access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  erase_query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    std::string text (erase_query_statement);
+    if (!q.empty ())
+    {
+      text += ' ';
+      text += q.clause ();
+    }
+
+    q.init_parameters ();
+    delete_statement st (
+      conn,
+      erase_query_statement_name,
+      text,
+      q.parameter_types (),
+      q.parameter_count (),
+      q.parameters_binding ());
+
+    return st.execute ();
+  }
+
+  odb::details::shared_ptr<prepared_query_impl>
+  access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  prepare_query (connection& c, const char* n, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      static_cast<pgsql::connection&> (c));
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    std::string text (query_statement);
+    if (!q.empty ())
+    {
+      text += " ";
+      text += q.clause ();
+    }
+
+    shared_ptr<pgsql::prepared_query_impl> r (
+      new (shared) pgsql::prepared_query_impl (conn));
+    r->name = n;
+    r->execute = &execute_query;
+    r->query = q;
+    r->stmt.reset (
+      new (shared) select_statement (
+        sts.connection (),
+        n,
+        text,
+        false,
+        true,
+        r->query.parameter_types (),
+        r->query.parameter_count (),
+        r->query.parameters_binding (),
+        imb));
+
+    return r;
+  }
+
+  odb::details::shared_ptr<result_impl>
+  access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  execute_query (prepared_query_impl& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::prepared_query_impl& pq (
+      static_cast<pgsql::prepared_query_impl&> (q));
+    shared_ptr<select_statement> st (
+      odb::details::inc_ref (
+        static_cast<select_statement*> (pq.stmt.get ())));
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    // The connection used by the current transaction and the
+    // one used to prepare this statement must be the same.
+    //
+    assert (&conn == &st->connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    pq.query.init_parameters ();
+    st->execute ();
+
+    return shared_ptr<result_impl> (
+      new (shared) pgsql::object_result_impl<object_type> (
+        pq.query, st, sts, 0));
+  }
+
+  // build_repository
+  //
+
+  const char access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  persist_statement_name[] = "persist_brep_build_repository";
+
+  const char access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  find_statement_name[] = "find_brep_build_repository";
+
+  const char access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  erase_statement_name[] = "erase_brep_build_repository";
+
+  const char access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  query_statement_name[] = "query_brep_build_repository";
+
+  const char access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  erase_query_statement_name[] = "erase_query_brep_build_repository";
+
+  const unsigned int access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  persist_statement_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid
+  };
+
+  const unsigned int access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  find_statement_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::text_oid
+  };
+
+  struct access::object_traits_impl< ::brep::build_repository, id_pgsql >::extra_statement_cache_type
+  {
+    extra_statement_cache_type (
+      pgsql::connection&,
+      image_type&,
+      id_image_type&,
+      pgsql::binding&,
+      pgsql::binding&,
+      pgsql::native_binding&,
+      const unsigned int*)
+    {
+    }
+  };
+
+  access::object_traits_impl< ::brep::build_repository, id_pgsql >::id_type
+  access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  id (const image_type& i)
+  {
+    pgsql::database* db (0);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    id_type id;
+    {
+      composite_value_traits< ::brep::repository_id, id_pgsql >::init (
+        id,
+        i.id_value,
+        db);
+    }
+
+    return id;
+  }
+
+  bool access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // id
+    //
+    if (composite_value_traits< ::brep::repository_id, id_pgsql >::grow (
+          i.id_value, t + 0UL))
+      grew = true;
+
+    // location
+    //
+    if (composite_value_traits< ::brep::_repository_location, id_pgsql >::grow (
+          i.location_value, t + 2UL))
+      grew = true;
+
+    // certificate_fingerprint
+    //
+    if (t[4UL])
+    {
+      i.certificate_fingerprint_value.capacity (i.certificate_fingerprint_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    assert (sk != statement_update);
+
+    std::size_t n (0);
+
+    // id
+    //
+    composite_value_traits< ::brep::repository_id, id_pgsql >::bind (
+      b + n, i.id_value, sk);
+    n += 2UL;
+
+    // location
+    //
+    composite_value_traits< ::brep::_repository_location, id_pgsql >::bind (
+      b + n, i.location_value, sk);
+    n += 2UL;
+
+    // certificate_fingerprint
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.certificate_fingerprint_value.data ();
+    b[n].capacity = i.certificate_fingerprint_value.capacity ();
+    b[n].size = &i.certificate_fingerprint_size;
+    b[n].is_null = &i.certificate_fingerprint_null;
+    n++;
+  }
+
+  void access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  bind (pgsql::bind* b, id_image_type& i)
+  {
+    std::size_t n (0);
+    pgsql::statement_kind sk (pgsql::statement_select);
+    composite_value_traits< ::brep::repository_id, id_pgsql >::bind (
+      b + n, i.id_value, sk);
+  }
+
+  bool access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  init (image_type& i,
+        const object_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    assert (sk != statement_update);
+
+    bool grew (false);
+
+    // id
+    //
+    {
+      ::brep::repository_id const& v =
+        o.id;
+
+      if (composite_value_traits< ::brep::repository_id, id_pgsql >::init (
+            i.id_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    // location
+    //
+    {
+      ::bpkg::repository_location const& v =
+        o.location;
+
+      // From common.hxx:285:14
+      ::brep::_repository_location const& vt =
+        brep::_repository_location 
+      {
+         (v).url (), (v).empty () ? brep::repository_type::pkg : (v).type () 
+      };
+
+
+      if (composite_value_traits< ::brep::_repository_location, id_pgsql >::init (
+            i.location_value,
+            vt,
+            sk))
+        grew = true;
+    }
+
+    // certificate_fingerprint
+    //
+    {
+      ::butl::optional< ::std::basic_string< char > > const& v =
+        o.certificate_fingerprint;
+
+      bool is_null (true);
+      std::size_t size (0);
+      std::size_t cap (i.certificate_fingerprint_value.capacity ());
+      pgsql::value_traits<
+          ::butl::optional< ::std::basic_string< char > >,
+          pgsql::id_string >::set_image (
+        i.certificate_fingerprint_value,
+        size,
+        is_null,
+        v);
+      i.certificate_fingerprint_null = is_null;
+      i.certificate_fingerprint_size = size;
+      grew = grew || (cap != i.certificate_fingerprint_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  init (object_type& o,
+        const image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // id
+    //
+    {
+      ::brep::repository_id& v =
+        o.id;
+
+      composite_value_traits< ::brep::repository_id, id_pgsql >::init (
+        v,
+        i.id_value,
+        db);
+    }
+
+    // location
+    //
+    {
+      // From build-package.hxx:63:7
+      ::bpkg::repository_location v;
+
+      ::brep::_repository_location vt;
+
+      composite_value_traits< ::brep::_repository_location, id_pgsql >::init (
+        vt,
+        i.location_value,
+        db);
+
+      // From common.hxx:285:14
+      v = brep::repository_location (std::move ((vt).url), (vt).type);
+      // From build-package.hxx:63:7
+      o.location = std::move (v);
+      assert (o.canonical_name == o.location.canonical_name ());
+    }
+
+    // certificate_fingerprint
+    //
+    {
+      ::butl::optional< ::std::basic_string< char > >& v =
+        o.certificate_fingerprint;
+
+      pgsql::value_traits<
+          ::butl::optional< ::std::basic_string< char > >,
+          pgsql::id_string >::set_value (
+        v,
+        i.certificate_fingerprint_value,
+        i.certificate_fingerprint_size,
+        i.certificate_fingerprint_null);
+    }
+  }
+
+  void access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  init (id_image_type& i, const id_type& id)
+  {
+    bool grew (false);
+    pgsql::statement_kind sk (pgsql::statement_select);
+    {
+      if (composite_value_traits< ::brep::repository_id, id_pgsql >::init (
+            i.id_value,
+            id,
+            sk))
+        grew = true;
+    }
+
+    if (grew)
+      i.version++;
+  }
+
+  const char access::object_traits_impl< ::brep::build_repository, id_pgsql >::persist_statement[] =
+  "INSERT INTO \"build_repository\" "
+  "(\"tenant\", "
+  "\"canonical_name\", "
+  "\"location_url\", "
+  "\"location_type\", "
+  "\"certificate_fingerprint\") "
+  "VALUES "
+  "($1, $2, $3, $4, $5)";
+
+  const char access::object_traits_impl< ::brep::build_repository, id_pgsql >::find_statement[] =
+  "SELECT "
+  "\"build_repository\".\"tenant\", "
+  "\"build_repository\".\"canonical_name\", "
+  "\"build_repository\".\"location_url\", "
+  "\"build_repository\".\"location_type\", "
+  "\"build_repository\".\"certificate_fingerprint\" "
+  "FROM \"build_repository\" "
+  "WHERE \"build_repository\".\"tenant\"=$1 AND \"build_repository\".\"canonical_name\"=$2";
+
+  const char access::object_traits_impl< ::brep::build_repository, id_pgsql >::erase_statement[] =
+  "DELETE FROM \"build_repository\" "
+  "WHERE \"tenant\"=$1 AND \"canonical_name\"=$2";
+
+  const char access::object_traits_impl< ::brep::build_repository, id_pgsql >::query_statement[] =
+  "SELECT "
+  "\"build_repository\".\"tenant\", "
+  "\"build_repository\".\"canonical_name\", "
+  "\"build_repository\".\"location_url\", "
+  "\"build_repository\".\"location_type\", "
+  "\"build_repository\".\"certificate_fingerprint\" "
+  "FROM \"build_repository\"";
+
+  const char access::object_traits_impl< ::brep::build_repository, id_pgsql >::erase_query_statement[] =
+  "DELETE FROM \"build_repository\"";
+
+  const char access::object_traits_impl< ::brep::build_repository, id_pgsql >::table_name[] =
+  "\"build_repository\"";
+
+  void access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  persist (database& db, const object_type& obj)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    callback (db,
+              obj,
+              callback_event::pre_persist);
+
+    image_type& im (sts.image ());
+    binding& imb (sts.insert_image_binding ());
+
+    if (init (im, obj, statement_insert))
+      im.version++;
+
+    if (im.version != sts.insert_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_insert);
+      sts.insert_image_version (im.version);
+      imb.version++;
+    }
+
+    insert_statement& st (sts.persist_statement ());
+    if (!st.execute ())
+      throw object_already_persistent ();
+
+    callback (db,
+              obj,
+              callback_event::post_persist);
+  }
+
+  void access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  erase (database& db, const id_type& id)
+  {
+    using namespace pgsql;
+
+    ODB_POTENTIALLY_UNUSED (db);
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    id_image_type& i (sts.id_image ());
+    init (i, id);
+
+    binding& idb (sts.id_image_binding ());
+    if (i.version != sts.id_image_version () || idb.version == 0)
+    {
+      bind (idb.bind, i);
+      sts.id_image_version (i.version);
+      idb.version++;
+    }
+
+    if (sts.erase_statement ().execute () != 1)
+      throw object_not_persistent ();
+
+    pointer_cache_traits::erase (db, id);
+  }
+
+  access::object_traits_impl< ::brep::build_repository, id_pgsql >::pointer_type
+  access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  find (database& db, const id_type& id)
+  {
+    using namespace pgsql;
+
+    {
+      pointer_type p (pointer_cache_traits::find (db, id));
+
+      if (!pointer_traits::null_ptr (p))
+        return p;
+    }
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+
+    if (l.locked ())
+    {
+      if (!find_ (sts, &id))
+        return pointer_type ();
+    }
+
+    pointer_type p (
+      access::object_factory<object_type, pointer_type>::create ());
+    pointer_traits::guard pg (p);
+
+    pointer_cache_traits::insert_guard ig (
+      pointer_cache_traits::insert (db, id, p));
+
+    object_type& obj (pointer_traits::get_ref (p));
+
+    if (l.locked ())
+    {
+      select_statement& st (sts.find_statement ());
+      ODB_POTENTIALLY_UNUSED (st);
+
+      callback (db, obj, callback_event::pre_load);
+      init (obj, sts.image (), &db);
+      load_ (sts, obj, false);
+      sts.load_delayed (0);
+      l.unlock ();
+      callback (db, obj, callback_event::post_load);
+      pointer_cache_traits::load (ig.position ());
+    }
+    else
+      sts.delay_load (id, obj, ig.position ());
+
+    ig.release ();
+    pg.release ();
+    return p;
+  }
+
+  bool access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  find (database& db, const id_type& id, object_type& obj)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+    assert (l.locked ()) /* Must be a top-level call. */;
+
+    if (!find_ (sts, &id))
+      return false;
+
+    select_statement& st (sts.find_statement ());
+    ODB_POTENTIALLY_UNUSED (st);
+
+    reference_cache_traits::position_type pos (
+      reference_cache_traits::insert (db, id, obj));
+    reference_cache_traits::insert_guard ig (pos);
+
+    callback (db, obj, callback_event::pre_load);
+    init (obj, sts.image (), &db);
+    load_ (sts, obj, false);
+    sts.load_delayed (0);
+    l.unlock ();
+    callback (db, obj, callback_event::post_load);
+    reference_cache_traits::load (pos);
+    ig.release ();
+    return true;
+  }
+
+  bool access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  reload (database& db, object_type& obj)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+    assert (l.locked ()) /* Must be a top-level call. */;
+
+    const id_type& id (object_traits_impl::id (obj));
+    if (!find_ (sts, &id))
+      return false;
+
+    select_statement& st (sts.find_statement ());
+    ODB_POTENTIALLY_UNUSED (st);
+
+    callback (db, obj, callback_event::pre_load);
+    init (obj, sts.image (), &db);
+    load_ (sts, obj, true);
+    sts.load_delayed (0);
+    l.unlock ();
+    callback (db, obj, callback_event::post_load);
+    return true;
+  }
+
+  bool access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  find_ (statements_type& sts,
+         const id_type* id)
+  {
+    using namespace pgsql;
+
+    id_image_type& i (sts.id_image ());
+    init (i, *id);
+
+    binding& idb (sts.id_image_binding ());
+    if (i.version != sts.id_image_version () || idb.version == 0)
+    {
+      bind (idb.bind, i);
+      sts.id_image_version (i.version);
+      idb.version++;
+    }
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    select_statement& st (sts.find_statement ());
+
+    st.execute ();
+    auto_result ar (st);
+    select_statement::result r (st.fetch ());
+
+    if (r == select_statement::truncated)
+    {
+      if (grow (im, sts.select_image_truncated ()))
+        im.version++;
+
+      if (im.version != sts.select_image_version ())
+      {
+        bind (imb.bind, im, statement_select);
+        sts.select_image_version (im.version);
+        imb.version++;
+        st.refetch ();
+      }
+    }
+
+    return r != select_statement::no_data;
+  }
+
+  result< access::object_traits_impl< ::brep::build_repository, id_pgsql >::object_type >
+  access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    std::string text (query_statement);
+    if (!q.empty ())
+    {
+      text += " ";
+      text += q.clause ();
+    }
+
+    q.init_parameters ();
+    shared_ptr<select_statement> st (
+      new (shared) select_statement (
+        sts.connection (),
+        query_statement_name,
+        text,
+        false,
+        true,
+        q.parameter_types (),
+        q.parameter_count (),
+        q.parameters_binding (),
+        imb));
+
+    st->execute ();
+    st->deallocate ();
+
+    shared_ptr< odb::object_result_impl<object_type> > r (
+      new (shared) pgsql::object_result_impl<object_type> (
+        q, st, sts, 0));
+
+    return result<object_type> (r);
+  }
+
+  unsigned long long access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  erase_query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    std::string text (erase_query_statement);
+    if (!q.empty ())
+    {
+      text += ' ';
+      text += q.clause ();
+    }
+
+    q.init_parameters ();
+    delete_statement st (
+      conn,
+      erase_query_statement_name,
+      text,
+      q.parameter_types (),
+      q.parameter_count (),
+      q.parameters_binding ());
+
+    return st.execute ();
+  }
+
+  odb::details::shared_ptr<prepared_query_impl>
+  access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  prepare_query (connection& c, const char* n, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      static_cast<pgsql::connection&> (c));
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    std::string text (query_statement);
+    if (!q.empty ())
+    {
+      text += " ";
+      text += q.clause ();
+    }
+
+    shared_ptr<pgsql::prepared_query_impl> r (
+      new (shared) pgsql::prepared_query_impl (conn));
+    r->name = n;
+    r->execute = &execute_query;
+    r->query = q;
+    r->stmt.reset (
+      new (shared) select_statement (
+        sts.connection (),
+        n,
+        text,
+        false,
+        true,
+        r->query.parameter_types (),
+        r->query.parameter_count (),
+        r->query.parameters_binding (),
+        imb));
+
+    return r;
+  }
+
+  odb::details::shared_ptr<result_impl>
+  access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  execute_query (prepared_query_impl& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::prepared_query_impl& pq (
+      static_cast<pgsql::prepared_query_impl&> (q));
+    shared_ptr<select_statement> st (
+      odb::details::inc_ref (
+        static_cast<select_statement*> (pq.stmt.get ())));
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    // The connection used by the current transaction and the
+    // one used to prepare this statement must be the same.
+    //
+    assert (&conn == &st->connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    pq.query.init_parameters ();
+    st->execute ();
+
+    return shared_ptr<result_impl> (
+      new (shared) pgsql::object_result_impl<object_type> (
+        pq.query, st, sts, 0));
+  }
+
+  // build_test_dependency
+  //
+
+  bool access::composite_value_traits< ::brep::build_test_dependency, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // name
+    //
+    if (t[0UL])
+    {
+      i.name_value.capacity (i.name_size);
+      grew = true;
+    }
+
+    // package
+    //
+    if (composite_value_traits< ::brep::package_id, id_pgsql >::grow (
+          i.package_value, t + 1UL))
+      grew = true;
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::build_test_dependency, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // name
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.name_value.data ();
+    b[n].capacity = i.name_value.capacity ();
+    b[n].size = &i.name_size;
+    b[n].is_null = &i.name_null;
+    n++;
+
+    // package
+    //
+    composite_value_traits< ::brep::package_id, id_pgsql >::bind (
+      b + n, i.package_value, sk);
+    n += 6UL;
+  }
+
+  bool access::composite_value_traits< ::brep::build_test_dependency, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // name
+    //
+    {
+      ::bpkg::package_name const& v =
+        o.name;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.name_value.capacity ());
+      pgsql::value_traits<
+          ::bpkg::package_name,
+          pgsql::id_string >::set_image (
+        i.name_value,
+        size,
+        is_null,
+        v);
+      i.name_null = is_null;
+      i.name_size = size;
+      grew = grew || (cap != i.name_value.capacity ());
+    }
+
+    // package
+    //
+    {
+      ::odb::lazy_shared_ptr< ::brep::build_package > const& v =
+        o.package;
+
+      typedef object_traits< ::brep::build_package > obj_traits;
+      typedef odb::pointer_traits< ::odb::lazy_shared_ptr< ::brep::build_package > > ptr_traits;
+
+      bool is_null (ptr_traits::null_ptr (v));
+      if (!is_null)
+      {
+        const obj_traits::id_type& ptr_id (
+          ptr_traits::object_id< ptr_traits::element_type  > (v));
+
+        if (composite_value_traits< obj_traits::id_type, id_pgsql >::init (
+              i.package_value,
+              ptr_id,
+              sk))
+          grew = true;
+      }
+      else
+        composite_value_traits< obj_traits::id_type, id_pgsql >::set_null (i.package_value, sk);
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::build_test_dependency, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // name
+    //
+    {
+      ::bpkg::package_name& v =
+        o.name;
+
+      pgsql::value_traits<
+          ::bpkg::package_name,
+          pgsql::id_string >::set_value (
+        v,
+        i.name_value,
+        i.name_size,
+        i.name_null);
+    }
+
+    // package
+    //
+    {
+      ::odb::lazy_shared_ptr< ::brep::build_package >& v =
+        o.package;
+
+      typedef object_traits< ::brep::build_package > obj_traits;
+      typedef odb::pointer_traits< ::odb::lazy_shared_ptr< ::brep::build_package > > ptr_traits;
+
+      if (composite_value_traits< obj_traits::id_type, id_pgsql >::get_null (
+            i.package_value))
+        v = ptr_traits::pointer_type ();
+      else
+      {
+        obj_traits::id_type ptr_id;
+        composite_value_traits< obj_traits::id_type, id_pgsql >::init (
+          ptr_id,
+          i.package_value,
+          db);
+
+        v = ptr_traits::pointer_type (
+          *static_cast<pgsql::database*> (db), ptr_id);
+      }
+    }
+  }
+
+  // build_package
+  //
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  persist_statement_name[] = "persist_brep_build_package";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  find_statement_name[] = "find_brep_build_package";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  erase_statement_name[] = "erase_brep_build_package";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  query_statement_name[] = "query_brep_build_package";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  erase_query_statement_name[] = "erase_query_brep_build_package";
+
+  const unsigned int access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  persist_statement_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::bool_oid
+  };
+
+  const unsigned int access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  find_statement_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid
+  };
+
+  const char alias_traits<  ::brep::build_repository,
+    id_pgsql,
+    access::object_traits_impl< ::brep::build_package, id_pgsql >::internal_repository_tag>::
+  table_name[] = "\"internal_repository\"";
+
+  struct access::object_traits_impl< ::brep::build_package, id_pgsql >::extra_statement_cache_type
+  {
+    pgsql::container_statements_impl< tests_traits > tests;
+    pgsql::container_statements_impl< builds_traits > builds;
+    pgsql::container_statements_impl< constraints_traits > constraints;
+
+    extra_statement_cache_type (
+      pgsql::connection& c,
+      image_type&,
+      id_image_type&,
+      pgsql::binding& id,
+      pgsql::binding&,
+      pgsql::native_binding& idn,
+      const unsigned int* idt)
+    : tests (c, id, idn, idt),
+      builds (c, id, idn, idt),
+      constraints (c, id, idn, idt)
+    {
+    }
+  };
+
+  // tests
+  //
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  select_name[] = "select_brep_build_package_tests";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  insert_name[] = "insert_brep_build_package_tests";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  delete_name[] = "delete_brep_build_package_tests";
+
+  const unsigned int access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  insert_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::int8_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid
+  };
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  select_statement[] =
+  "SELECT "
+  "\"build_package_tests\".\"index\", "
+  "\"build_package_tests\".\"test_name\"::TEXT, "
+  "\"build_package_tests\".\"test_package_tenant\", "
+  "\"build_package_tests\".\"test_package_name\"::TEXT, "
+  "\"build_package_tests\".\"test_package_version_epoch\", "
+  "\"build_package_tests\".\"test_package_version_canonical_upstream\", "
+  "\"build_package_tests\".\"test_package_version_canonical_release\", "
+  "\"build_package_tests\".\"test_package_version_revision\" "
+  "FROM \"build_package_tests\" "
+  "WHERE \"build_package_tests\".\"tenant\"=$1 AND \"build_package_tests\".\"name\"=$2::CITEXT AND \"build_package_tests\".\"version_epoch\"=$3 AND \"build_package_tests\".\"version_canonical_upstream\"=$4 AND \"build_package_tests\".\"version_canonical_release\"=$5 AND \"build_package_tests\".\"version_revision\"=$6 ORDER BY \"build_package_tests\".\"index\"";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  insert_statement[] =
+  "INSERT INTO \"build_package_tests\" "
+  "(\"tenant\", "
+  "\"name\", "
+  "\"version_epoch\", "
+  "\"version_canonical_upstream\", "
+  "\"version_canonical_release\", "
+  "\"version_revision\", "
+  "\"index\", "
+  "\"test_name\", "
+  "\"test_package_tenant\", "
+  "\"test_package_name\", "
+  "\"test_package_version_epoch\", "
+  "\"test_package_version_canonical_upstream\", "
+  "\"test_package_version_canonical_release\", "
+  "\"test_package_version_revision\") "
+  "VALUES "
+  "($1, $2::CITEXT, $3, $4, $5, $6, $7, $8::CITEXT, $9, $10::CITEXT, $11, $12, $13, $14)";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  delete_statement[] =
+  "DELETE FROM \"build_package_tests\" "
+  "WHERE \"tenant\"=$1 AND \"name\"=$2::CITEXT AND \"version_epoch\"=$3 AND \"version_canonical_upstream\"=$4 AND \"version_canonical_release\"=$5 AND \"version_revision\"=$6";
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  bind (pgsql::bind* b,
+        const pgsql::bind* id,
+        std::size_t id_size,
+        data_image_type& d)
+  {
+    using namespace pgsql;
+
+    statement_kind sk (statement_select);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    size_t n (0);
+
+    // object_id
+    //
+    if (id != 0)
+      std::memcpy (&b[n], id, id_size * sizeof (id[0]));
+    n += id_size;
+
+    // index
+    //
+    b[n].type = pgsql::bind::bigint;
+    b[n].buffer = &d.index_value;
+    b[n].is_null = &d.index_null;
+    n++;
+
+    // value
+    //
+    composite_value_traits< value_type, id_pgsql >::bind (
+      b + n, d.value_value, sk);
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  grow (data_image_type& i,
+        bool* t)
+  {
+    bool grew (false);
+
+    // index
+    //
+    t[0UL] = 0;
+
+    // value
+    //
+    if (composite_value_traits< value_type, id_pgsql >::grow (
+          i.value_value, t + 1UL))
+      grew = true;
+
+    if (grew)
+      i.version++;
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  init (data_image_type& i,
+        index_type* j,
+        const value_type& v)
+  {
+    using namespace pgsql;
+
+    statement_kind sk (statement_insert);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    bool grew (false);
+
+    // index
+    //
+    if (j != 0)
+    {
+      bool is_null (false);
+      pgsql::value_traits<
+          index_type,
+          pgsql::id_bigint >::set_image (
+        i.index_value, is_null, *j);
+      i.index_null = is_null;
+    }
+
+    // value
+    //
+    {
+      if (composite_value_traits< value_type, id_pgsql >::init (
+            i.value_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    if (grew)
+      i.version++;
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  init (index_type& j,
+        value_type& v,
+        const data_image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // index
+    //
+    {
+      pgsql::value_traits<
+          index_type,
+          pgsql::id_bigint >::set_value (
+        j,
+        i.index_value,
+        i.index_null);
+    }
+
+    // value
+    //
+    {
+      composite_value_traits< value_type, id_pgsql >::init (
+        v,
+        i.value_value,
+        db);
+    }
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  insert (index_type i, const value_type& v, void* d)
+  {
+    using namespace pgsql;
+
+    statements_type& sts (*static_cast< statements_type* > (d));
+    data_image_type& di (sts.data_image ());
+
+    init (di, &i, v);
+
+    if (sts.data_binding_test_version ())
+    {
+      const binding& id (sts.id_binding ());
+      bind (sts.data_bind (), id.bind, id.count, di);
+      sts.data_binding_update_version ();
+    }
+
+    if (!sts.insert_statement ().execute ())
+      throw object_already_persistent ();
+  }
+
+  bool access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  select (index_type& i, value_type& v, void* d)
+  {
+    using namespace pgsql;
+    using pgsql::select_statement;
+
+    statements_type& sts (*static_cast< statements_type* > (d));
+    data_image_type& di (sts.data_image ());
+
+    init (i, v, di, &sts.connection ().database ());
+
+    select_statement& st (sts.select_statement ());
+    select_statement::result r (st.fetch ());
+
+    if (r == select_statement::truncated)
+    {
+      grow (di, sts.select_image_truncated ());
+
+      if (sts.data_binding_test_version ())
+      {
+        bind (sts.data_bind (), 0, sts.id_binding ().count, di);
+        sts.data_binding_update_version ();
+        st.refetch ();
+      }
+    }
+
+    return r != select_statement::no_data;
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  delete_ (void* d)
+  {
+    using namespace pgsql;
+
+    statements_type& sts (*static_cast< statements_type* > (d));
+    sts.delete_statement ().execute ();
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  persist (const container_type& c,
+           statements_type& sts)
+  {
+    using namespace pgsql;
+
+    functions_type& fs (sts.functions ());
+    fs.ordered_ = true;
+    container_traits_type::persist (c, fs);
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  load (container_type& c,
+        statements_type& sts)
+  {
+    using namespace pgsql;
+    using pgsql::select_statement;
+
+    const binding& id (sts.id_binding ());
+
+    if (sts.data_binding_test_version ())
+    {
+      bind (sts.data_bind (), id.bind, id.count, sts.data_image ());
+      sts.data_binding_update_version ();
+    }
+
+    select_statement& st (sts.select_statement ());
+    st.execute ();
+    auto_result ar (st);
+    select_statement::result r (st.fetch ());
+
+    if (r == select_statement::truncated)
+    {
+      data_image_type& di (sts.data_image ());
+      grow (di, sts.select_image_truncated ());
+
+      if (sts.data_binding_test_version ())
+      {
+        bind (sts.data_bind (), 0, id.count, di);
+        sts.data_binding_update_version ();
+        st.refetch ();
+      }
+    }
+
+    bool more (r != select_statement::no_data);
+
+    functions_type& fs (sts.functions ());
+    fs.ordered_ = true;
+    container_traits_type::load (c, more, fs);
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::tests_traits::
+  erase (statements_type& sts)
+  {
+    using namespace pgsql;
+
+    functions_type& fs (sts.functions ());
+    fs.ordered_ = true;
+    container_traits_type::erase (fs);
+  }
+
+  // builds
+  //
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  select_name[] = "select_brep_build_package_builds";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  insert_name[] = "insert_brep_build_package_builds";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  delete_name[] = "delete_brep_build_package_builds";
+
+  const unsigned int access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  insert_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::int8_oid,
+    pgsql::text_oid,
+    pgsql::text_oid
+  };
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  select_statement[] =
+  "SELECT "
+  "\"build_package_builds\".\"index\", "
+  "\"build_package_builds\".\"expression\", "
+  "\"build_package_builds\".\"comment\" "
+  "FROM \"build_package_builds\" "
+  "WHERE \"build_package_builds\".\"tenant\"=$1 AND \"build_package_builds\".\"name\"=$2::CITEXT AND \"build_package_builds\".\"version_epoch\"=$3 AND \"build_package_builds\".\"version_canonical_upstream\"=$4 AND \"build_package_builds\".\"version_canonical_release\"=$5 AND \"build_package_builds\".\"version_revision\"=$6 ORDER BY \"build_package_builds\".\"index\"";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  insert_statement[] =
+  "INSERT INTO \"build_package_builds\" "
+  "(\"tenant\", "
+  "\"name\", "
+  "\"version_epoch\", "
+  "\"version_canonical_upstream\", "
+  "\"version_canonical_release\", "
+  "\"version_revision\", "
+  "\"index\", "
+  "\"expression\", "
+  "\"comment\") "
+  "VALUES "
+  "($1, $2::CITEXT, $3, $4, $5, $6, $7, $8, $9)";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  delete_statement[] =
+  "DELETE FROM \"build_package_builds\" "
+  "WHERE \"tenant\"=$1 AND \"name\"=$2::CITEXT AND \"version_epoch\"=$3 AND \"version_canonical_upstream\"=$4 AND \"version_canonical_release\"=$5 AND \"version_revision\"=$6";
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  bind (pgsql::bind* b,
+        const pgsql::bind* id,
+        std::size_t id_size,
+        data_image_type& d)
+  {
+    using namespace pgsql;
+
+    statement_kind sk (statement_select);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    size_t n (0);
+
+    // object_id
+    //
+    if (id != 0)
+      std::memcpy (&b[n], id, id_size * sizeof (id[0]));
+    n += id_size;
+
+    // index
+    //
+    b[n].type = pgsql::bind::bigint;
+    b[n].buffer = &d.index_value;
+    b[n].is_null = &d.index_null;
+    n++;
+
+    // value
+    //
+    composite_value_traits< value_type, id_pgsql >::bind (
+      b + n, d.value_value, sk);
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  grow (data_image_type& i,
+        bool* t)
+  {
+    bool grew (false);
+
+    // index
+    //
+    t[0UL] = 0;
+
+    // value
+    //
+    if (composite_value_traits< value_type, id_pgsql >::grow (
+          i.value_value, t + 1UL))
+      grew = true;
+
+    if (grew)
+      i.version++;
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  init (data_image_type& i,
+        index_type* j,
+        const value_type& v)
+  {
+    using namespace pgsql;
+
+    statement_kind sk (statement_insert);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    bool grew (false);
+
+    // index
+    //
+    if (j != 0)
+    {
+      bool is_null (false);
+      pgsql::value_traits<
+          index_type,
+          pgsql::id_bigint >::set_image (
+        i.index_value, is_null, *j);
+      i.index_null = is_null;
+    }
+
+    // value
+    //
+    {
+      if (composite_value_traits< value_type, id_pgsql >::init (
+            i.value_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    if (grew)
+      i.version++;
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  init (index_type& j,
+        value_type& v,
+        const data_image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // index
+    //
+    {
+      pgsql::value_traits<
+          index_type,
+          pgsql::id_bigint >::set_value (
+        j,
+        i.index_value,
+        i.index_null);
+    }
+
+    // value
+    //
+    {
+      composite_value_traits< value_type, id_pgsql >::init (
+        v,
+        i.value_value,
+        db);
+    }
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  insert (index_type i, const value_type& v, void* d)
+  {
+    using namespace pgsql;
+
+    statements_type& sts (*static_cast< statements_type* > (d));
+    data_image_type& di (sts.data_image ());
+
+    init (di, &i, v);
+
+    if (sts.data_binding_test_version ())
+    {
+      const binding& id (sts.id_binding ());
+      bind (sts.data_bind (), id.bind, id.count, di);
+      sts.data_binding_update_version ();
+    }
+
+    if (!sts.insert_statement ().execute ())
+      throw object_already_persistent ();
+  }
+
+  bool access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  select (index_type& i, value_type& v, void* d)
+  {
+    using namespace pgsql;
+    using pgsql::select_statement;
+
+    statements_type& sts (*static_cast< statements_type* > (d));
+    data_image_type& di (sts.data_image ());
+
+    init (i, v, di, &sts.connection ().database ());
+
+    select_statement& st (sts.select_statement ());
+    select_statement::result r (st.fetch ());
+
+    if (r == select_statement::truncated)
+    {
+      grow (di, sts.select_image_truncated ());
+
+      if (sts.data_binding_test_version ())
+      {
+        bind (sts.data_bind (), 0, sts.id_binding ().count, di);
+        sts.data_binding_update_version ();
+        st.refetch ();
+      }
+    }
+
+    return r != select_statement::no_data;
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  delete_ (void* d)
+  {
+    using namespace pgsql;
+
+    statements_type& sts (*static_cast< statements_type* > (d));
+    sts.delete_statement ().execute ();
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  persist (const container_type& c,
+           statements_type& sts)
+  {
+    using namespace pgsql;
+
+    functions_type& fs (sts.functions ());
+    fs.ordered_ = true;
+    container_traits_type::persist (c, fs);
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  load (container_type& c,
+        statements_type& sts)
+  {
+    using namespace pgsql;
+    using pgsql::select_statement;
+
+    const binding& id (sts.id_binding ());
+
+    if (sts.data_binding_test_version ())
+    {
+      bind (sts.data_bind (), id.bind, id.count, sts.data_image ());
+      sts.data_binding_update_version ();
+    }
+
+    select_statement& st (sts.select_statement ());
+    st.execute ();
+    auto_result ar (st);
+    select_statement::result r (st.fetch ());
+
+    if (r == select_statement::truncated)
+    {
+      data_image_type& di (sts.data_image ());
+      grow (di, sts.select_image_truncated ());
+
+      if (sts.data_binding_test_version ())
+      {
+        bind (sts.data_bind (), 0, id.count, di);
+        sts.data_binding_update_version ();
+        st.refetch ();
+      }
+    }
+
+    bool more (r != select_statement::no_data);
+
+    functions_type& fs (sts.functions ());
+    fs.ordered_ = true;
+    container_traits_type::load (c, more, fs);
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::builds_traits::
+  erase (statements_type& sts)
+  {
+    using namespace pgsql;
+
+    functions_type& fs (sts.functions ());
+    fs.ordered_ = true;
+    container_traits_type::erase (fs);
+  }
+
+  // constraints
+  //
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  select_name[] = "select_brep_build_package_constraints";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  insert_name[] = "insert_brep_build_package_constraints";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  delete_name[] = "delete_brep_build_package_constraints";
+
+  const unsigned int access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  insert_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::int4_oid,
+    pgsql::int8_oid,
+    pgsql::bool_oid,
+    pgsql::text_oid,
+    pgsql::text_oid,
+    pgsql::text_oid
+  };
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  select_statement[] =
+  "SELECT "
+  "\"build_package_constraints\".\"index\", "
+  "\"build_package_constraints\".\"exclusion\", "
+  "\"build_package_constraints\".\"config\", "
+  "\"build_package_constraints\".\"target\", "
+  "\"build_package_constraints\".\"comment\" "
+  "FROM \"build_package_constraints\" "
+  "WHERE \"build_package_constraints\".\"tenant\"=$1 AND \"build_package_constraints\".\"name\"=$2::CITEXT AND \"build_package_constraints\".\"version_epoch\"=$3 AND \"build_package_constraints\".\"version_canonical_upstream\"=$4 AND \"build_package_constraints\".\"version_canonical_release\"=$5 AND \"build_package_constraints\".\"version_revision\"=$6 ORDER BY \"build_package_constraints\".\"index\"";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  insert_statement[] =
+  "INSERT INTO \"build_package_constraints\" "
+  "(\"tenant\", "
+  "\"name\", "
+  "\"version_epoch\", "
+  "\"version_canonical_upstream\", "
+  "\"version_canonical_release\", "
+  "\"version_revision\", "
+  "\"index\", "
+  "\"exclusion\", "
+  "\"config\", "
+  "\"target\", "
+  "\"comment\") "
+  "VALUES "
+  "($1, $2::CITEXT, $3, $4, $5, $6, $7, $8, $9, $10, $11)";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  delete_statement[] =
+  "DELETE FROM \"build_package_constraints\" "
+  "WHERE \"tenant\"=$1 AND \"name\"=$2::CITEXT AND \"version_epoch\"=$3 AND \"version_canonical_upstream\"=$4 AND \"version_canonical_release\"=$5 AND \"version_revision\"=$6";
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  bind (pgsql::bind* b,
+        const pgsql::bind* id,
+        std::size_t id_size,
+        data_image_type& d)
+  {
+    using namespace pgsql;
+
+    statement_kind sk (statement_select);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    size_t n (0);
+
+    // object_id
+    //
+    if (id != 0)
+      std::memcpy (&b[n], id, id_size * sizeof (id[0]));
+    n += id_size;
+
+    // index
+    //
+    b[n].type = pgsql::bind::bigint;
+    b[n].buffer = &d.index_value;
+    b[n].is_null = &d.index_null;
+    n++;
+
+    // value
+    //
+    composite_value_traits< value_type, id_pgsql >::bind (
+      b + n, d.value_value, sk);
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  grow (data_image_type& i,
+        bool* t)
+  {
+    bool grew (false);
+
+    // index
+    //
+    t[0UL] = 0;
+
+    // value
+    //
+    if (composite_value_traits< value_type, id_pgsql >::grow (
+          i.value_value, t + 1UL))
+      grew = true;
+
+    if (grew)
+      i.version++;
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  init (data_image_type& i,
+        index_type* j,
+        const value_type& v)
+  {
+    using namespace pgsql;
+
+    statement_kind sk (statement_insert);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    bool grew (false);
+
+    // index
+    //
+    if (j != 0)
+    {
+      bool is_null (false);
+      pgsql::value_traits<
+          index_type,
+          pgsql::id_bigint >::set_image (
+        i.index_value, is_null, *j);
+      i.index_null = is_null;
+    }
+
+    // value
+    //
+    {
+      if (composite_value_traits< value_type, id_pgsql >::init (
+            i.value_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    if (grew)
+      i.version++;
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  init (index_type& j,
+        value_type& v,
+        const data_image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // index
+    //
+    {
+      pgsql::value_traits<
+          index_type,
+          pgsql::id_bigint >::set_value (
+        j,
+        i.index_value,
+        i.index_null);
+    }
+
+    // value
+    //
+    {
+      composite_value_traits< value_type, id_pgsql >::init (
+        v,
+        i.value_value,
+        db);
+    }
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  insert (index_type i, const value_type& v, void* d)
+  {
+    using namespace pgsql;
+
+    statements_type& sts (*static_cast< statements_type* > (d));
+    data_image_type& di (sts.data_image ());
+
+    init (di, &i, v);
+
+    if (sts.data_binding_test_version ())
+    {
+      const binding& id (sts.id_binding ());
+      bind (sts.data_bind (), id.bind, id.count, di);
+      sts.data_binding_update_version ();
+    }
+
+    if (!sts.insert_statement ().execute ())
+      throw object_already_persistent ();
+  }
+
+  bool access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  select (index_type& i, value_type& v, void* d)
+  {
+    using namespace pgsql;
+    using pgsql::select_statement;
+
+    statements_type& sts (*static_cast< statements_type* > (d));
+    data_image_type& di (sts.data_image ());
+
+    init (i, v, di, &sts.connection ().database ());
+
+    select_statement& st (sts.select_statement ());
+    select_statement::result r (st.fetch ());
+
+    if (r == select_statement::truncated)
+    {
+      grow (di, sts.select_image_truncated ());
+
+      if (sts.data_binding_test_version ())
+      {
+        bind (sts.data_bind (), 0, sts.id_binding ().count, di);
+        sts.data_binding_update_version ();
+        st.refetch ();
+      }
+    }
+
+    return r != select_statement::no_data;
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  delete_ (void* d)
+  {
+    using namespace pgsql;
+
+    statements_type& sts (*static_cast< statements_type* > (d));
+    sts.delete_statement ().execute ();
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  persist (const container_type& c,
+           statements_type& sts)
+  {
+    using namespace pgsql;
+
+    functions_type& fs (sts.functions ());
+    fs.ordered_ = true;
+    container_traits_type::persist (c, fs);
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  load (container_type& c,
+        statements_type& sts)
+  {
+    using namespace pgsql;
+    using pgsql::select_statement;
+
+    const binding& id (sts.id_binding ());
+
+    if (sts.data_binding_test_version ())
+    {
+      bind (sts.data_bind (), id.bind, id.count, sts.data_image ());
+      sts.data_binding_update_version ();
+    }
+
+    select_statement& st (sts.select_statement ());
+    st.execute ();
+    auto_result ar (st);
+    select_statement::result r (st.fetch ());
+
+    if (r == select_statement::truncated)
+    {
+      data_image_type& di (sts.data_image ());
+      grow (di, sts.select_image_truncated ());
+
+      if (sts.data_binding_test_version ())
+      {
+        bind (sts.data_bind (), 0, id.count, di);
+        sts.data_binding_update_version ();
+        st.refetch ();
+      }
+    }
+
+    bool more (r != select_statement::no_data);
+
+    functions_type& fs (sts.functions ());
+    fs.ordered_ = true;
+    container_traits_type::load (c, more, fs);
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::constraints_traits::
+  erase (statements_type& sts)
+  {
+    using namespace pgsql;
+
+    functions_type& fs (sts.functions ());
+    fs.ordered_ = true;
+    container_traits_type::erase (fs);
+  }
+
+  access::object_traits_impl< ::brep::build_package, id_pgsql >::id_type
+  access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  id (const image_type& i)
+  {
+    pgsql::database* db (0);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    id_type id;
+    {
+      composite_value_traits< ::brep::package_id, id_pgsql >::init (
+        id,
+        i.id_value,
+        db);
+    }
+
+    return id;
+  }
+
+  bool access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // id
+    //
+    if (composite_value_traits< ::brep::package_id, id_pgsql >::grow (
+          i.id_value, t + 0UL))
+      grew = true;
+
+    // version
+    //
+    if (composite_value_traits< ::brep::upstream_version, id_pgsql >::grow (
+          i.version_value, t + 6UL))
+      grew = true;
+
+    // internal_repository
+    //
+    if (composite_value_traits< ::brep::repository_id, id_pgsql >::grow (
+          i.internal_repository_value, t + 8UL))
+      grew = true;
+
+    // buildable
+    //
+    t[10UL] = 0;
+
+    return grew;
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    assert (sk != statement_update);
+
+    std::size_t n (0);
+
+    // id
+    //
+    composite_value_traits< ::brep::package_id, id_pgsql >::bind (
+      b + n, i.id_value, sk);
+    n += 6UL;
+
+    // version
+    //
+    composite_value_traits< ::brep::upstream_version, id_pgsql >::bind (
+      b + n, i.version_value, sk);
+    n += 2UL;
+
+    // internal_repository
+    //
+    composite_value_traits< ::brep::repository_id, id_pgsql >::bind (
+      b + n, i.internal_repository_value, sk);
+    n += 2UL;
+
+    // buildable
+    //
+    b[n].type = pgsql::bind::boolean_;
+    b[n].buffer = &i.buildable_value;
+    b[n].is_null = &i.buildable_null;
+    n++;
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  bind (pgsql::bind* b, id_image_type& i)
+  {
+    std::size_t n (0);
+    pgsql::statement_kind sk (pgsql::statement_select);
+    composite_value_traits< ::brep::package_id, id_pgsql >::bind (
+      b + n, i.id_value, sk);
+  }
+
+  bool access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  init (image_type& i,
+        const object_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    assert (sk != statement_update);
+
+    bool grew (false);
+
+    // id
+    //
+    {
+      ::brep::package_id const& v =
+        o.id;
+
+      if (composite_value_traits< ::brep::package_id, id_pgsql >::init (
+            i.id_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    // version
+    //
+    {
+      ::brep::upstream_version const& v =
+        o.version;
+
+      if (composite_value_traits< ::brep::upstream_version, id_pgsql >::init (
+            i.version_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    // internal_repository
+    //
+    {
+      ::odb::lazy_shared_ptr< ::brep::build_repository > const& v =
+        o.internal_repository;
+
+      typedef object_traits< ::brep::build_repository > obj_traits;
+      typedef odb::pointer_traits< ::odb::lazy_shared_ptr< ::brep::build_repository > > ptr_traits;
+
+      bool is_null (ptr_traits::null_ptr (v));
+      if (!is_null)
+      {
+        const obj_traits::id_type& ptr_id (
+          ptr_traits::object_id< ptr_traits::element_type  > (v));
+
+        if (composite_value_traits< obj_traits::id_type, id_pgsql >::init (
+              i.internal_repository_value,
+              ptr_id,
+              sk))
+          grew = true;
+      }
+      else
+        composite_value_traits< obj_traits::id_type, id_pgsql >::set_null (i.internal_repository_value, sk);
+    }
+
+    // buildable
+    //
+    {
+      bool const& v =
+        o.buildable;
+
+      bool is_null (false);
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_image (
+        i.buildable_value, is_null, v);
+      i.buildable_null = is_null;
+    }
+
+    return grew;
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  init (object_type& o,
+        const image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // id
+    //
+    {
+      ::brep::package_id& v =
+        o.id;
+
+      composite_value_traits< ::brep::package_id, id_pgsql >::init (
+        v,
+        i.id_value,
+        db);
+    }
+
+    // version
+    //
+    {
+      // From build-package.hxx:117:32
+      ::brep::upstream_version v;
+
+      composite_value_traits< ::brep::upstream_version, id_pgsql >::init (
+        v,
+        i.version_value,
+        db);
+
+      // From build-package.hxx:117:32
+      o.version.init (o.id.version, (v));
+    }
+
+    // internal_repository
+    //
+    {
+      ::odb::lazy_shared_ptr< ::brep::build_repository >& v =
+        o.internal_repository;
+
+      typedef object_traits< ::brep::build_repository > obj_traits;
+      typedef odb::pointer_traits< ::odb::lazy_shared_ptr< ::brep::build_repository > > ptr_traits;
+
+      if (composite_value_traits< obj_traits::id_type, id_pgsql >::get_null (
+            i.internal_repository_value))
+        v = ptr_traits::pointer_type ();
+      else
+      {
+        obj_traits::id_type ptr_id;
+        composite_value_traits< obj_traits::id_type, id_pgsql >::init (
+          ptr_id,
+          i.internal_repository_value,
+          db);
+
+        v = ptr_traits::pointer_type (
+          *static_cast<pgsql::database*> (db), ptr_id);
+      }
+    }
+
+    // buildable
+    //
+    {
+      bool& v =
+        o.buildable;
+
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_value (
+        v,
+        i.buildable_value,
+        i.buildable_null);
+    }
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  init (id_image_type& i, const id_type& id)
+  {
+    bool grew (false);
+    pgsql::statement_kind sk (pgsql::statement_select);
+    {
+      if (composite_value_traits< ::brep::package_id, id_pgsql >::init (
+            i.id_value,
+            id,
+            sk))
+        grew = true;
+    }
+
+    if (grew)
+      i.version++;
+  }
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::persist_statement[] =
+  "INSERT INTO \"build_package\" "
+  "(\"tenant\", "
+  "\"name\", "
+  "\"version_epoch\", "
+  "\"version_canonical_upstream\", "
+  "\"version_canonical_release\", "
+  "\"version_revision\", "
+  "\"version_upstream\", "
+  "\"version_release\", "
+  "\"internal_repository_tenant\", "
+  "\"internal_repository_canonical_name\", "
+  "\"buildable\") "
+  "VALUES "
+  "($1, $2::CITEXT, $3, $4, $5, $6, $7, $8, $9, $10, $11)";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::find_statement[] =
+  "SELECT "
+  "\"build_package\".\"tenant\", "
+  "\"build_package\".\"name\"::TEXT, "
+  "\"build_package\".\"version_epoch\", "
+  "\"build_package\".\"version_canonical_upstream\", "
+  "\"build_package\".\"version_canonical_release\", "
+  "\"build_package\".\"version_revision\", "
+  "\"build_package\".\"version_upstream\", "
+  "\"build_package\".\"version_release\", "
+  "\"build_package\".\"internal_repository_tenant\", "
+  "\"build_package\".\"internal_repository_canonical_name\", "
+  "\"build_package\".\"buildable\" "
+  "FROM \"build_package\" "
+  "WHERE \"build_package\".\"tenant\"=$1 AND \"build_package\".\"name\"=$2::CITEXT AND \"build_package\".\"version_epoch\"=$3 AND \"build_package\".\"version_canonical_upstream\"=$4 AND \"build_package\".\"version_canonical_release\"=$5 AND \"build_package\".\"version_revision\"=$6";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::erase_statement[] =
+  "DELETE FROM \"build_package\" "
+  "WHERE \"tenant\"=$1 AND \"name\"=$2::CITEXT AND \"version_epoch\"=$3 AND \"version_canonical_upstream\"=$4 AND \"version_canonical_release\"=$5 AND \"version_revision\"=$6";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::query_statement[] =
+  "SELECT\n"
+  "\"build_package\".\"tenant\",\n"
+  "\"build_package\".\"name\"::TEXT,\n"
+  "\"build_package\".\"version_epoch\",\n"
+  "\"build_package\".\"version_canonical_upstream\",\n"
+  "\"build_package\".\"version_canonical_release\",\n"
+  "\"build_package\".\"version_revision\",\n"
+  "\"build_package\".\"version_upstream\",\n"
+  "\"build_package\".\"version_release\",\n"
+  "\"build_package\".\"internal_repository_tenant\",\n"
+  "\"build_package\".\"internal_repository_canonical_name\",\n"
+  "\"build_package\".\"buildable\"\n"
+  "FROM \"build_package\"\n"
+  "LEFT JOIN \"build_repository\" AS \"internal_repository\" ON \"internal_repository\".\"tenant\"=\"build_package\".\"internal_repository_tenant\" AND \"internal_repository\".\"canonical_name\"=\"build_package\".\"internal_repository_canonical_name\"";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::erase_query_statement[] =
+  "DELETE FROM \"build_package\"";
+
+  const char access::object_traits_impl< ::brep::build_package, id_pgsql >::table_name[] =
+  "\"build_package\"";
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  persist (database& db, const object_type& obj)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    callback (db,
+              obj,
+              callback_event::pre_persist);
+
+    image_type& im (sts.image ());
+    binding& imb (sts.insert_image_binding ());
+
+    if (init (im, obj, statement_insert))
+      im.version++;
+
+    if (im.version != sts.insert_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_insert);
+      sts.insert_image_version (im.version);
+      imb.version++;
+    }
+
+    insert_statement& st (sts.persist_statement ());
+    if (!st.execute ())
+      throw object_already_persistent ();
+
+    id_image_type& i (sts.id_image ());
+    init (i, id (obj));
+
+    binding& idb (sts.id_image_binding ());
+    if (i.version != sts.id_image_version () || idb.version == 0)
+    {
+      bind (idb.bind, i);
+      sts.id_image_version (i.version);
+      idb.version++;
+    }
+
+    extra_statement_cache_type& esc (sts.extra_statement_cache ());
+
+    // tests
+    //
+    {
+      ::butl::small_vector< ::brep::build_test_dependency, 1 > const& v =
+        obj.tests;
+
+      tests_traits::persist (
+        v,
+        esc.tests);
+    }
+
+    // builds
+    //
+    {
+      ::brep::build_class_exprs const& v =
+        obj.builds;
+
+      builds_traits::persist (
+        v,
+        esc.builds);
+    }
+
+    // constraints
+    //
+    {
+      ::brep::build_constraints const& v =
+        obj.constraints;
+
+      constraints_traits::persist (
+        v,
+        esc.constraints);
+    }
+
+    callback (db,
+              obj,
+              callback_event::post_persist);
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  erase (database& db, const id_type& id)
+  {
+    using namespace pgsql;
+
+    ODB_POTENTIALLY_UNUSED (db);
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    id_image_type& i (sts.id_image ());
+    init (i, id);
+
+    binding& idb (sts.id_image_binding ());
+    if (i.version != sts.id_image_version () || idb.version == 0)
+    {
+      bind (idb.bind, i);
+      sts.id_image_version (i.version);
+      idb.version++;
+    }
+
+    extra_statement_cache_type& esc (sts.extra_statement_cache ());
+
+    // tests
+    //
+    {
+      tests_traits::erase (
+        esc.tests);
+    }
+
+    // builds
+    //
+    {
+      builds_traits::erase (
+        esc.builds);
+    }
+
+    // constraints
+    //
+    {
+      constraints_traits::erase (
+        esc.constraints);
+    }
+
+    if (sts.erase_statement ().execute () != 1)
+      throw object_not_persistent ();
+
+    pointer_cache_traits::erase (db, id);
+  }
+
+  access::object_traits_impl< ::brep::build_package, id_pgsql >::pointer_type
+  access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  find (database& db, const id_type& id)
+  {
+    using namespace pgsql;
+
+    {
+      pointer_type p (pointer_cache_traits::find (db, id));
+
+      if (!pointer_traits::null_ptr (p))
+        return p;
+    }
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+
+    if (l.locked ())
+    {
+      if (!find_ (sts, &id))
+        return pointer_type ();
+    }
+
+    pointer_type p (
+      access::object_factory<object_type, pointer_type>::create ());
+    pointer_traits::guard pg (p);
+
+    pointer_cache_traits::insert_guard ig (
+      pointer_cache_traits::insert (db, id, p));
+
+    object_type& obj (pointer_traits::get_ref (p));
+
+    if (l.locked ())
+    {
+      select_statement& st (sts.find_statement ());
+      ODB_POTENTIALLY_UNUSED (st);
+
+      callback (db, obj, callback_event::pre_load);
+      init (obj, sts.image (), &db);
+      load_ (sts, obj, false);
+      sts.load_delayed (0);
+      l.unlock ();
+      callback (db, obj, callback_event::post_load);
+      pointer_cache_traits::load (ig.position ());
+    }
+    else
+      sts.delay_load (id, obj, ig.position ());
+
+    ig.release ();
+    pg.release ();
+    return p;
+  }
+
+  bool access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  find (database& db, const id_type& id, object_type& obj)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+    assert (l.locked ()) /* Must be a top-level call. */;
+
+    if (!find_ (sts, &id))
+      return false;
+
+    select_statement& st (sts.find_statement ());
+    ODB_POTENTIALLY_UNUSED (st);
+
+    reference_cache_traits::position_type pos (
+      reference_cache_traits::insert (db, id, obj));
+    reference_cache_traits::insert_guard ig (pos);
+
+    callback (db, obj, callback_event::pre_load);
+    init (obj, sts.image (), &db);
+    load_ (sts, obj, false);
+    sts.load_delayed (0);
+    l.unlock ();
+    callback (db, obj, callback_event::post_load);
+    reference_cache_traits::load (pos);
+    ig.release ();
+    return true;
+  }
+
+  bool access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  reload (database& db, object_type& obj)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    statements_type::auto_lock l (sts);
+    assert (l.locked ()) /* Must be a top-level call. */;
+
+    const id_type& id (object_traits_impl::id (obj));
+    if (!find_ (sts, &id))
+      return false;
+
+    select_statement& st (sts.find_statement ());
+    ODB_POTENTIALLY_UNUSED (st);
+
+    callback (db, obj, callback_event::pre_load);
+    init (obj, sts.image (), &db);
+    load_ (sts, obj, true);
+    sts.load_delayed (0);
+    l.unlock ();
+    callback (db, obj, callback_event::post_load);
+    return true;
+  }
+
+  bool access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  find_ (statements_type& sts,
+         const id_type* id)
+  {
+    using namespace pgsql;
+
+    id_image_type& i (sts.id_image ());
+    init (i, *id);
+
+    binding& idb (sts.id_image_binding ());
+    if (i.version != sts.id_image_version () || idb.version == 0)
+    {
+      bind (idb.bind, i);
+      sts.id_image_version (i.version);
+      idb.version++;
+    }
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    select_statement& st (sts.find_statement ());
+
+    st.execute ();
+    auto_result ar (st);
+    select_statement::result r (st.fetch ());
+
+    if (r == select_statement::truncated)
+    {
+      if (grow (im, sts.select_image_truncated ()))
+        im.version++;
+
+      if (im.version != sts.select_image_version ())
+      {
+        bind (imb.bind, im, statement_select);
+        sts.select_image_version (im.version);
+        imb.version++;
+        st.refetch ();
+      }
+    }
+
+    return r != select_statement::no_data;
+  }
+
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  load_ (statements_type& sts,
+         object_type& obj,
+         bool reload)
+  {
+    ODB_POTENTIALLY_UNUSED (reload);
+
+    extra_statement_cache_type& esc (sts.extra_statement_cache ());
+
+    // tests
+    //
+    {
+      ::butl::small_vector< ::brep::build_test_dependency, 1 >& v =
+        obj.tests;
+
+      tests_traits::load (
+        v,
+        esc.tests);
+    }
+
+    // builds
+    //
+    {
+      ::brep::build_class_exprs& v =
+        obj.builds;
+
+      builds_traits::load (
+        v,
+        esc.builds);
+    }
+
+    // constraints
+    //
+    {
+      ::brep::build_constraints& v =
+        obj.constraints;
+
+      constraints_traits::load (
+        v,
+        esc.constraints);
+    }
+  }
+
+  result< access::object_traits_impl< ::brep::build_package, id_pgsql >::object_type >
+  access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    std::string text (query_statement);
+    if (!q.empty ())
+    {
+      text += "\n";
+      text += q.clause ();
+    }
+
+    q.init_parameters ();
+    shared_ptr<select_statement> st (
+      new (shared) select_statement (
+        sts.connection (),
+        query_statement_name,
+        text,
+        true,
+        true,
+        q.parameter_types (),
+        q.parameter_count (),
+        q.parameters_binding (),
+        imb));
+
+    st->execute ();
+    st->deallocate ();
+
+    shared_ptr< odb::object_result_impl<object_type> > r (
+      new (shared) pgsql::object_result_impl<object_type> (
+        q, st, sts, 0));
+
+    return result<object_type> (r);
+  }
+
+  unsigned long long access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  erase_query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    std::string text (erase_query_statement);
+    if (!q.empty ())
+    {
+      text += ' ';
+      text += q.clause ();
+    }
+
+    q.init_parameters ();
+    delete_statement st (
+      conn,
+      erase_query_statement_name,
+      text,
+      q.parameter_types (),
+      q.parameter_count (),
+      q.parameters_binding ());
+
+    return st.execute ();
+  }
+
+  odb::details::shared_ptr<prepared_query_impl>
+  access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  prepare_query (connection& c, const char* n, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      static_cast<pgsql::connection&> (c));
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    std::string text (query_statement);
+    if (!q.empty ())
+    {
+      text += "\n";
+      text += q.clause ();
+    }
+
+    shared_ptr<pgsql::prepared_query_impl> r (
+      new (shared) pgsql::prepared_query_impl (conn));
+    r->name = n;
+    r->execute = &execute_query;
+    r->query = q;
+    r->stmt.reset (
+      new (shared) select_statement (
+        sts.connection (),
+        n,
+        text,
+        true,
+        true,
+        r->query.parameter_types (),
+        r->query.parameter_count (),
+        r->query.parameters_binding (),
+        imb));
+
+    return r;
+  }
+
+  odb::details::shared_ptr<result_impl>
+  access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  execute_query (prepared_query_impl& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::prepared_query_impl& pq (
+      static_cast<pgsql::prepared_query_impl&> (q));
+    shared_ptr<select_statement> st (
+      odb::details::inc_ref (
+        static_cast<select_statement*> (pq.stmt.get ())));
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    // The connection used by the current transaction and the
+    // one used to prepare this statement must be the same.
+    //
+    assert (&conn == &st->connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_object<object_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.select_image_binding ());
+
+    if (im.version != sts.select_image_version () ||
+        imb.version == 0)
+    {
+      bind (imb.bind, im, statement_select);
+      sts.select_image_version (im.version);
+      imb.version++;
+    }
+
+    pq.query.init_parameters ();
+    st->execute ();
+
+    return shared_ptr<result_impl> (
+      new (shared) pgsql::object_result_impl<object_type> (
+        pq.query, st, sts, 0));
+  }
+
+  // buildable_package
+  //
+
+  const char access::view_traits_impl< ::brep::buildable_package, id_pgsql >::
+  query_statement_name[] = "query_brep_buildable_package";
+
+  bool access::view_traits_impl< ::brep::buildable_package, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // id
+    //
+    if (composite_value_traits< ::brep::package_id, id_pgsql >::grow (
+          i.id_value, t + 0UL))
+      grew = true;
+
+    // version
+    //
+    if (composite_value_traits< ::brep::upstream_version, id_pgsql >::grow (
+          i.version_value, t + 6UL))
+      grew = true;
+
+    // archived
+    //
+    t[8UL] = 0;
+
+    return grew;
+  }
+
+  void access::view_traits_impl< ::brep::buildable_package, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i)
+  {
+    using namespace pgsql;
+
+    pgsql::statement_kind sk (statement_select);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    std::size_t n (0);
+
+    // id
+    //
+    composite_value_traits< ::brep::package_id, id_pgsql >::bind (
+      b + n, i.id_value, sk);
+    n += 6UL;
+
+    // version
+    //
+    composite_value_traits< ::brep::upstream_version, id_pgsql >::bind (
+      b + n, i.version_value, sk);
+    n += 2UL;
+
+    // archived
+    //
+    b[n].type = pgsql::bind::boolean_;
+    b[n].buffer = &i.archived_value;
+    b[n].is_null = &i.archived_null;
+    n++;
+  }
+
+  void access::view_traits_impl< ::brep::buildable_package, id_pgsql >::
+  init (view_type& o,
+        const image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // id
+    //
+    {
+      ::brep::package_id& v =
+        o.id;
+
+      composite_value_traits< ::brep::package_id, id_pgsql >::init (
+        v,
+        i.id_value,
+        db);
+    }
+
+    // version
+    //
+    {
+      // From build-package.hxx:148:32
+      ::brep::upstream_version v;
+
+      composite_value_traits< ::brep::upstream_version, id_pgsql >::init (
+        v,
+        i.version_value,
+        db);
+
+      // From build-package.hxx:148:32
+      o.version.init (o.id.version, (v));
+    }
+
+    // archived
+    //
+    {
+      bool& v =
+        o.archived;
+
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_value (
+        v,
+        i.archived_value,
+        i.archived_null);
+    }
+  }
+
+  access::view_traits_impl< ::brep::buildable_package, id_pgsql >::query_base_type
+  access::view_traits_impl< ::brep::buildable_package, id_pgsql >::
+  query_statement (const query_base_type& q)
+  {
+    query_base_type r (
+      "SELECT "
+      "\"build_package\".\"tenant\", "
+      "\"build_package\".\"name\"::TEXT, "
+      "\"build_package\".\"version_epoch\", "
+      "\"build_package\".\"version_canonical_upstream\", "
+      "\"build_package\".\"version_canonical_release\", "
+      "\"build_package\".\"version_revision\", "
+      "\"build_package\".\"version_upstream\", "
+      "\"build_package\".\"version_release\", "
+      "\"build_tenant\".\"archived\" ");
+
+    r += "FROM \"build_package\"";
+
+    r += " INNER JOIN \"build_repository\" ON";
+    // From build-package.hxx:134:5
+    r += query_columns::build_package::buildable && brep::operator == (query_columns::build_package::internal_repository, query_columns::build_repository::id);
+
+    r += " LEFT JOIN \"build_tenant\" ON";
+    // From build-package.hxx:138:5
+    r += query_columns::build_package::id.tenant == query_columns::build_tenant::id;
+
+    if (!q.empty ())
+    {
+      r += " ";
+      r += q.clause_prefix ();
+      r += q;
+    }
+
+    return r;
+  }
+
+  result< access::view_traits_impl< ::brep::buildable_package, id_pgsql >::view_type >
+  access::view_traits_impl< ::brep::buildable_package, id_pgsql >::
+  query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    const query_base_type& qs (query_statement (q));
+    qs.init_parameters ();
+    shared_ptr<select_statement> st (
+      new (shared) select_statement (
+        sts.connection (),
+        query_statement_name,
+        qs.clause (),
+        false,
+        true,
+        qs.parameter_types (),
+        qs.parameter_count (),
+        qs.parameters_binding (),
+        imb));
+
+    st->execute ();
+    st->deallocate ();
+
+    shared_ptr< odb::view_result_impl<view_type> > r (
+      new (shared) pgsql::view_result_impl<view_type> (
+        qs, st, sts, 0));
+
+    return result<view_type> (r);
+  }
+
+  odb::details::shared_ptr<prepared_query_impl>
+  access::view_traits_impl< ::brep::buildable_package, id_pgsql >::
+  prepare_query (connection& c, const char* n, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      static_cast<pgsql::connection&> (c));
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    shared_ptr<pgsql::prepared_query_impl> r (
+      new (shared) pgsql::prepared_query_impl (conn));
+    r->name = n;
+    r->execute = &execute_query;
+    r->query = query_statement (q);
+    r->stmt.reset (
+      new (shared) select_statement (
+        sts.connection (),
+        n,
+        r->query.clause (),
+        false,
+        true,
+        r->query.parameter_types (),
+        r->query.parameter_count (),
+        r->query.parameters_binding (),
+        imb));
+
+    return r;
+  }
+
+  odb::details::shared_ptr<result_impl>
+  access::view_traits_impl< ::brep::buildable_package, id_pgsql >::
+  execute_query (prepared_query_impl& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::prepared_query_impl& pq (
+      static_cast<pgsql::prepared_query_impl&> (q));
+    shared_ptr<select_statement> st (
+      odb::details::inc_ref (
+        static_cast<select_statement*> (pq.stmt.get ())));
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    // The connection used by the current transaction and the
+    // one used to prepare this statement must be the same.
+    //
+    assert (&conn == &st->connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    pq.query.init_parameters ();
+    st->execute ();
+
+    return shared_ptr<result_impl> (
+      new (shared) pgsql::view_result_impl<view_type> (
+        pq.query, st, sts, 0));
+  }
+
+  // buildable_package_count
+  //
+
+  const char access::view_traits_impl< ::brep::buildable_package_count, id_pgsql >::
+  query_statement_name[] = "query_brep_buildable_package_count";
+
+  bool access::view_traits_impl< ::brep::buildable_package_count, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // result
+    //
+    t[0UL] = 0;
+
+    return grew;
+  }
+
+  void access::view_traits_impl< ::brep::buildable_package_count, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i)
+  {
+    using namespace pgsql;
+
+    pgsql::statement_kind sk (statement_select);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    std::size_t n (0);
+
+    // result
+    //
+    b[n].type = pgsql::bind::bigint;
+    b[n].buffer = &i.result_value;
+    b[n].is_null = &i.result_null;
+    n++;
+  }
+
+  void access::view_traits_impl< ::brep::buildable_package_count, id_pgsql >::
+  init (view_type& o,
+        const image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // result
+    //
+    {
+      ::std::size_t& v =
+        o.result;
+
+      pgsql::value_traits<
+          ::std::size_t,
+          pgsql::id_bigint >::set_value (
+        v,
+        i.result_value,
+        i.result_null);
+    }
+  }
+
+  access::view_traits_impl< ::brep::buildable_package_count, id_pgsql >::query_base_type
+  access::view_traits_impl< ::brep::buildable_package_count, id_pgsql >::
+  query_statement (const query_base_type& q)
+  {
+    query_base_type r (
+      "SELECT "
+      "count(\"build_package\".\"name\") ");
+
+    r += "FROM \"build_package\"";
+
+    r += " INNER JOIN \"build_repository\" ON";
+    // From build-package.hxx:153:5
+    r += query_columns::build_package::buildable && brep::operator == (query_columns::build_package::internal_repository, query_columns::build_repository::id);
+
+    r += " LEFT JOIN \"build_tenant\" ON";
+    // From build-package.hxx:157:5
+    r += query_columns::build_package::id.tenant == query_columns::build_tenant::id;
+
+    if (!q.empty ())
+    {
+      r += " ";
+      r += q.clause_prefix ();
+      r += q;
+    }
+
+    return r;
+  }
+
+  result< access::view_traits_impl< ::brep::buildable_package_count, id_pgsql >::view_type >
+  access::view_traits_impl< ::brep::buildable_package_count, id_pgsql >::
+  query (database&, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    const query_base_type& qs (query_statement (q));
+    qs.init_parameters ();
+    shared_ptr<select_statement> st (
+      new (shared) select_statement (
+        sts.connection (),
+        query_statement_name,
+        qs.clause (),
+        false,
+        true,
+        qs.parameter_types (),
+        qs.parameter_count (),
+        qs.parameters_binding (),
+        imb));
+
+    st->execute ();
+    st->deallocate ();
+
+    shared_ptr< odb::view_result_impl<view_type> > r (
+      new (shared) pgsql::view_result_impl<view_type> (
+        qs, st, sts, 0));
+
+    return result<view_type> (r);
+  }
+
+  odb::details::shared_ptr<prepared_query_impl>
+  access::view_traits_impl< ::brep::buildable_package_count, id_pgsql >::
+  prepare_query (connection& c, const char* n, const query_base_type& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::connection& conn (
+      static_cast<pgsql::connection&> (c));
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    shared_ptr<pgsql::prepared_query_impl> r (
+      new (shared) pgsql::prepared_query_impl (conn));
+    r->name = n;
+    r->execute = &execute_query;
+    r->query = query_statement (q);
+    r->stmt.reset (
+      new (shared) select_statement (
+        sts.connection (),
+        n,
+        r->query.clause (),
+        false,
+        true,
+        r->query.parameter_types (),
+        r->query.parameter_count (),
+        r->query.parameters_binding (),
+        imb));
+
+    return r;
+  }
+
+  odb::details::shared_ptr<result_impl>
+  access::view_traits_impl< ::brep::buildable_package_count, id_pgsql >::
+  execute_query (prepared_query_impl& q)
+  {
+    using namespace pgsql;
+    using odb::details::shared;
+    using odb::details::shared_ptr;
+
+    pgsql::prepared_query_impl& pq (
+      static_cast<pgsql::prepared_query_impl&> (q));
+    shared_ptr<select_statement> st (
+      odb::details::inc_ref (
+        static_cast<select_statement*> (pq.stmt.get ())));
+
+    pgsql::connection& conn (
+      pgsql::transaction::current ().connection ());
+
+    // The connection used by the current transaction and the
+    // one used to prepare this statement must be the same.
+    //
+    assert (&conn == &st->connection ());
+
+    statements_type& sts (
+      conn.statement_cache ().find_view<view_type> ());
+
+    image_type& im (sts.image ());
+    binding& imb (sts.image_binding ());
+
+    if (im.version != sts.image_version () || imb.version == 0)
+    {
+      bind (imb.bind, im);
+      sts.image_version (im.version);
+      imb.version++;
+    }
+
+    pq.query.init_parameters ();
+    st->execute ();
+
+    return shared_ptr<result_impl> (
+      new (shared) pgsql::view_result_impl<view_type> (
+        pq.query, st, sts, 0));
+  }
+}
+
+#include <odb/post.hxx>
diff --git a/libbrep/build-package-odb.hxx b/libbrep/build-package-odb.hxx
new file mode 100644
index 0000000..a0694e1
--- /dev/null
+++ b/libbrep/build-package-odb.hxx
@@ -0,0 +1,1877 @@
+// -*- C++ -*-
+//
+// This file was generated by ODB, object-relational mapping (ORM)
+// compiler for C++.
+//
+
+#ifndef LIBBREP_BUILD_PACKAGE_ODB_HXX
+#define LIBBREP_BUILD_PACKAGE_ODB_HXX
+
+#include <odb/version.hxx>
+
+#if (ODB_VERSION != 20470UL)
+#error ODB runtime version mismatch
+#endif
+
+#include <odb/pre.hxx>
+
+#include <libbrep/build-package.hxx>
+
+#include <libbrep/common-odb.hxx>
+
+#include <memory>
+#include <cstddef>
+#include <utility>
+
+#include <odb/core.hxx>
+#include <odb/traits.hxx>
+#include <odb/callback.hxx>
+#include <odb/wrapper-traits.hxx>
+#include <odb/pointer-traits.hxx>
+#include <odb/container-traits.hxx>
+#include <odb/session.hxx>
+#include <odb/cache-traits.hxx>
+#include <odb/prepared-query.hxx>
+#include <odb/result.hxx>
+#include <odb/simple-object-result.hxx>
+#include <odb/view-image.hxx>
+#include <odb/view-result.hxx>
+
+#include <odb/details/unused.hxx>
+#include <odb/details/shared-ptr.hxx>
+
+namespace odb
+{
+  // build_tenant
+  //
+  template <>
+  struct class_traits< ::brep::build_tenant >
+  {
+    static const class_kind kind = class_object;
+  };
+
+  template <>
+  class access::object_traits< ::brep::build_tenant >
+  {
+    public:
+    typedef ::brep::build_tenant object_type;
+    typedef ::std::shared_ptr< ::brep::build_tenant > pointer_type;
+    typedef odb::pointer_traits<pointer_type> pointer_traits;
+
+    static const bool polymorphic = false;
+
+    typedef ::std::string id_type;
+
+    static const bool auto_id = false;
+
+    static const bool abstract = false;
+
+    static id_type
+    id (const object_type&);
+
+    typedef
+    no_op_pointer_cache_traits<pointer_type>
+    pointer_cache_traits;
+
+    typedef
+    no_op_reference_cache_traits<object_type>
+    reference_cache_traits;
+
+    static void
+    callback (database&, object_type&, callback_event);
+
+    static void
+    callback (database&, const object_type&, callback_event);
+  };
+
+  // build_repository
+  //
+  template <>
+  struct class_traits< ::brep::build_repository >
+  {
+    static const class_kind kind = class_object;
+  };
+
+  template <>
+  class access::object_traits< ::brep::build_repository >
+  {
+    public:
+    typedef ::brep::build_repository object_type;
+    typedef ::std::shared_ptr< ::brep::build_repository > pointer_type;
+    typedef odb::pointer_traits<pointer_type> pointer_traits;
+
+    static const bool polymorphic = false;
+
+    typedef ::brep::repository_id id_type;
+
+    static const bool auto_id = false;
+
+    static const bool abstract = false;
+
+    static id_type
+    id (const object_type&);
+
+    typedef
+    no_op_pointer_cache_traits<pointer_type>
+    pointer_cache_traits;
+
+    typedef
+    no_op_reference_cache_traits<object_type>
+    reference_cache_traits;
+
+    static void
+    callback (database&, object_type&, callback_event);
+
+    static void
+    callback (database&, const object_type&, callback_event);
+  };
+
+  // build_package
+  //
+  template <>
+  struct class_traits< ::brep::build_package >
+  {
+    static const class_kind kind = class_object;
+  };
+
+  template <>
+  class access::object_traits< ::brep::build_package >
+  {
+    public:
+    typedef ::brep::build_package object_type;
+    typedef ::std::shared_ptr< ::brep::build_package > pointer_type;
+    typedef odb::pointer_traits<pointer_type> pointer_traits;
+
+    static const bool polymorphic = false;
+
+    typedef ::brep::package_id id_type;
+
+    static const bool auto_id = false;
+
+    static const bool abstract = false;
+
+    static id_type
+    id (const object_type&);
+
+    typedef
+    odb::pointer_cache_traits<
+      pointer_type,
+      odb::session >
+    pointer_cache_traits;
+
+    typedef
+    odb::reference_cache_traits<
+      object_type,
+      odb::session >
+    reference_cache_traits;
+
+    static void
+    callback (database&, object_type&, callback_event);
+
+    static void
+    callback (database&, const object_type&, callback_event);
+  };
+
+  // buildable_package
+  //
+  template <>
+  struct class_traits< ::brep::buildable_package >
+  {
+    static const class_kind kind = class_view;
+  };
+
+  template <>
+  class access::view_traits< ::brep::buildable_package >
+  {
+    public:
+    typedef ::brep::buildable_package view_type;
+    typedef ::brep::buildable_package* pointer_type;
+
+    static void
+    callback (database&, view_type&, callback_event);
+  };
+
+  // buildable_package_count
+  //
+  template <>
+  struct class_traits< ::brep::buildable_package_count >
+  {
+    static const class_kind kind = class_view;
+  };
+
+  template <>
+  class access::view_traits< ::brep::buildable_package_count >
+  {
+    public:
+    typedef ::brep::buildable_package_count view_type;
+    typedef ::brep::buildable_package_count* pointer_type;
+
+    static void
+    callback (database&, view_type&, callback_event);
+  };
+}
+
+#include <odb/details/buffer.hxx>
+
+#include <odb/pgsql/version.hxx>
+#include <odb/pgsql/forward.hxx>
+#include <odb/pgsql/binding.hxx>
+#include <odb/pgsql/pgsql-types.hxx>
+#include <odb/pgsql/query.hxx>
+
+namespace odb
+{
+  // build_tenant
+  //
+  template <typename A>
+  struct query_columns< ::brep::build_tenant, id_pgsql, A >
+  {
+    // id
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        ::std::string,
+        pgsql::id_string >::query_type,
+      pgsql::id_string >
+    id_type_;
+
+    static const id_type_ id;
+
+    // archived
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        bool,
+        pgsql::id_boolean >::query_type,
+      pgsql::id_boolean >
+    archived_type_;
+
+    static const archived_type_ archived;
+  };
+
+  template <typename A>
+  const typename query_columns< ::brep::build_tenant, id_pgsql, A >::id_type_
+  query_columns< ::brep::build_tenant, id_pgsql, A >::
+  id (A::table_name, "\"id\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_tenant, id_pgsql, A >::archived_type_
+  query_columns< ::brep::build_tenant, id_pgsql, A >::
+  archived (A::table_name, "\"archived\"", 0);
+
+  template <typename A>
+  struct pointer_query_columns< ::brep::build_tenant, id_pgsql, A >:
+    query_columns< ::brep::build_tenant, id_pgsql, A >
+  {
+  };
+
+  template <>
+  class access::object_traits_impl< ::brep::build_tenant, id_pgsql >:
+    public access::object_traits< ::brep::build_tenant >
+  {
+    public:
+    struct id_image_type
+    {
+      details::buffer id_value;
+      std::size_t id_size;
+      bool id_null;
+
+      std::size_t version;
+    };
+
+    struct image_type
+    {
+      // id
+      //
+      details::buffer id_value;
+      std::size_t id_size;
+      bool id_null;
+
+      // archived
+      //
+      bool archived_value;
+      bool archived_null;
+
+      std::size_t version;
+    };
+
+    struct extra_statement_cache_type;
+
+    using object_traits<object_type>::id;
+
+    static id_type
+    id (const image_type&);
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static void
+    bind (pgsql::bind*, id_image_type&);
+
+    static bool
+    init (image_type&,
+          const object_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (object_type&,
+          const image_type&,
+          database*);
+
+    static void
+    init (id_image_type&, const id_type&);
+
+    typedef pgsql::object_statements<object_type> statements_type;
+
+    typedef pgsql::query_base query_base_type;
+
+    static const std::size_t column_count = 2UL;
+    static const std::size_t id_column_count = 1UL;
+    static const std::size_t inverse_column_count = 0UL;
+    static const std::size_t readonly_column_count = 1UL;
+    static const std::size_t managed_optimistic_column_count = 0UL;
+
+    static const std::size_t separate_load_column_count = 0UL;
+    static const std::size_t separate_update_column_count = 0UL;
+
+    static const bool versioned = false;
+
+    static const char persist_statement[];
+    static const char find_statement[];
+    static const char erase_statement[];
+    static const char query_statement[];
+    static const char erase_query_statement[];
+
+    static const char table_name[];
+
+    static void
+    persist (database&, const object_type&);
+
+    static pointer_type
+    find (database&, const id_type&);
+
+    static bool
+    find (database&, const id_type&, object_type&);
+
+    static bool
+    reload (database&, object_type&);
+
+    static void
+    erase (database&, const id_type&);
+
+    static void
+    erase (database&, const object_type&);
+
+    static result<object_type>
+    query (database&, const query_base_type&);
+
+    static unsigned long long
+    erase_query (database&, const query_base_type&);
+
+    static odb::details::shared_ptr<prepared_query_impl>
+    prepare_query (connection&, const char*, const query_base_type&);
+
+    static odb::details::shared_ptr<result_impl>
+    execute_query (prepared_query_impl&);
+
+    static const char persist_statement_name[];
+    static const char find_statement_name[];
+    static const char erase_statement_name[];
+    static const char query_statement_name[];
+    static const char erase_query_statement_name[];
+
+    static const unsigned int persist_statement_types[];
+    static const unsigned int find_statement_types[];
+
+    public:
+    static bool
+    find_ (statements_type&,
+           const id_type*);
+
+    static void
+    load_ (statements_type&,
+           object_type&,
+           bool reload);
+  };
+
+  template <>
+  class access::object_traits_impl< ::brep::build_tenant, id_common >:
+    public access::object_traits_impl< ::brep::build_tenant, id_pgsql >
+  {
+  };
+
+  // build_repository
+  //
+  template <typename A>
+  struct query_columns< ::brep::build_repository, id_pgsql, A >
+  {
+    // id
+    //
+    struct id_class_
+    {
+      id_class_ ()
+      {
+      }
+
+      // tenant
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      tenant_type_;
+
+      static const tenant_type_ tenant;
+
+      // canonical_name
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      canonical_name_type_;
+
+      static const canonical_name_type_ canonical_name;
+    };
+
+    static const id_class_ id;
+
+    // location
+    //
+    struct location_class_
+    {
+      location_class_ ()
+      {
+      }
+
+      // url
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      url_type_;
+
+      static const url_type_ url;
+
+      // type
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      type_type_;
+
+      static const type_type_ type;
+    };
+
+    static const location_class_ location;
+
+    // certificate_fingerprint
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        ::std::basic_string< char >,
+        pgsql::id_string >::query_type,
+      pgsql::id_string >
+    certificate_fingerprint_type_;
+
+    static const certificate_fingerprint_type_ certificate_fingerprint;
+  };
+
+  template <typename A>
+  const typename query_columns< ::brep::build_repository, id_pgsql, A >::id_class_::tenant_type_
+  query_columns< ::brep::build_repository, id_pgsql, A >::id_class_::
+  tenant (A::table_name, "\"tenant\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_repository, id_pgsql, A >::id_class_::canonical_name_type_
+  query_columns< ::brep::build_repository, id_pgsql, A >::id_class_::
+  canonical_name (A::table_name, "\"canonical_name\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_repository, id_pgsql, A >::id_class_
+  query_columns< ::brep::build_repository, id_pgsql, A >::id;
+
+  template <typename A>
+  const typename query_columns< ::brep::build_repository, id_pgsql, A >::location_class_::url_type_
+  query_columns< ::brep::build_repository, id_pgsql, A >::location_class_::
+  url (A::table_name, "\"location_url\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_repository, id_pgsql, A >::location_class_::type_type_
+  query_columns< ::brep::build_repository, id_pgsql, A >::location_class_::
+  type (A::table_name, "\"location_type\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_repository, id_pgsql, A >::location_class_
+  query_columns< ::brep::build_repository, id_pgsql, A >::location;
+
+  template <typename A>
+  const typename query_columns< ::brep::build_repository, id_pgsql, A >::certificate_fingerprint_type_
+  query_columns< ::brep::build_repository, id_pgsql, A >::
+  certificate_fingerprint (A::table_name, "\"certificate_fingerprint\"", 0);
+
+  template <typename A>
+  struct pointer_query_columns< ::brep::build_repository, id_pgsql, A >:
+    query_columns< ::brep::build_repository, id_pgsql, A >
+  {
+  };
+
+  template <>
+  class access::object_traits_impl< ::brep::build_repository, id_pgsql >:
+    public access::object_traits< ::brep::build_repository >
+  {
+    public:
+    struct id_image_type
+    {
+      composite_value_traits< ::brep::repository_id, id_pgsql >::image_type id_value;
+
+      std::size_t version;
+    };
+
+    struct image_type
+    {
+      // id
+      //
+      composite_value_traits< ::brep::repository_id, id_pgsql >::image_type id_value;
+
+      // location
+      //
+      composite_value_traits< ::brep::_repository_location, id_pgsql >::image_type location_value;
+
+      // certificate_fingerprint
+      //
+      details::buffer certificate_fingerprint_value;
+      std::size_t certificate_fingerprint_size;
+      bool certificate_fingerprint_null;
+
+      std::size_t version;
+    };
+
+    struct extra_statement_cache_type;
+
+    using object_traits<object_type>::id;
+
+    static id_type
+    id (const image_type&);
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static void
+    bind (pgsql::bind*, id_image_type&);
+
+    static bool
+    init (image_type&,
+          const object_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (object_type&,
+          const image_type&,
+          database*);
+
+    static void
+    init (id_image_type&, const id_type&);
+
+    typedef pgsql::object_statements<object_type> statements_type;
+
+    typedef pgsql::query_base query_base_type;
+
+    static const std::size_t column_count = 5UL;
+    static const std::size_t id_column_count = 2UL;
+    static const std::size_t inverse_column_count = 0UL;
+    static const std::size_t readonly_column_count = 3UL;
+    static const std::size_t managed_optimistic_column_count = 0UL;
+
+    static const std::size_t separate_load_column_count = 0UL;
+    static const std::size_t separate_update_column_count = 0UL;
+
+    static const bool versioned = false;
+
+    static const char persist_statement[];
+    static const char find_statement[];
+    static const char erase_statement[];
+    static const char query_statement[];
+    static const char erase_query_statement[];
+
+    static const char table_name[];
+
+    static void
+    persist (database&, const object_type&);
+
+    static pointer_type
+    find (database&, const id_type&);
+
+    static bool
+    find (database&, const id_type&, object_type&);
+
+    static bool
+    reload (database&, object_type&);
+
+    static void
+    erase (database&, const id_type&);
+
+    static void
+    erase (database&, const object_type&);
+
+    static result<object_type>
+    query (database&, const query_base_type&);
+
+    static unsigned long long
+    erase_query (database&, const query_base_type&);
+
+    static odb::details::shared_ptr<prepared_query_impl>
+    prepare_query (connection&, const char*, const query_base_type&);
+
+    static odb::details::shared_ptr<result_impl>
+    execute_query (prepared_query_impl&);
+
+    static const char persist_statement_name[];
+    static const char find_statement_name[];
+    static const char erase_statement_name[];
+    static const char query_statement_name[];
+    static const char erase_query_statement_name[];
+
+    static const unsigned int persist_statement_types[];
+    static const unsigned int find_statement_types[];
+
+    public:
+    static bool
+    find_ (statements_type&,
+           const id_type*);
+
+    static void
+    load_ (statements_type&,
+           object_type&,
+           bool reload);
+  };
+
+  template <>
+  class access::object_traits_impl< ::brep::build_repository, id_common >:
+    public access::object_traits_impl< ::brep::build_repository, id_pgsql >
+  {
+  };
+
+  // build_test_dependency
+  //
+  template <>
+  class access::composite_value_traits< ::brep::build_test_dependency, id_pgsql >
+  {
+    public:
+    typedef ::brep::build_test_dependency value_type;
+
+    struct image_type
+    {
+      // name
+      //
+      details::buffer name_value;
+      std::size_t name_size;
+      bool name_null;
+
+      // package
+      //
+      composite_value_traits< ::brep::package_id, id_pgsql >::image_type package_value;
+    };
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static bool
+    init (image_type&,
+          const value_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (value_type&,
+          const image_type&,
+          database*);
+
+    static bool
+    get_null (const image_type&);
+
+    static void
+    set_null (image_type&,
+              pgsql::statement_kind);
+
+    static const std::size_t column_count = 7UL;
+  };
+
+  // build_package
+  //
+  template <typename A>
+  struct pointer_query_columns< ::brep::build_package, id_pgsql, A >
+  {
+    // id
+    //
+    struct id_class_
+    {
+      id_class_ ()
+      {
+      }
+
+      // tenant
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      tenant_type_;
+
+      static const tenant_type_ tenant;
+
+      // name
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::bpkg::package_name,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      name_type_;
+
+      static const name_type_ name;
+
+      // version
+      //
+      struct version_class_1_
+      {
+        version_class_1_ ()
+        {
+        }
+
+        // epoch
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::uint16_t,
+            pgsql::id_integer >::query_type,
+          pgsql::id_integer >
+        epoch_type_;
+
+        static const epoch_type_ epoch;
+
+        // canonical_upstream
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::std::string,
+            pgsql::id_string >::query_type,
+          pgsql::id_string >
+        canonical_upstream_type_;
+
+        static const canonical_upstream_type_ canonical_upstream;
+
+        // canonical_release
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::std::string,
+            pgsql::id_string >::query_type,
+          pgsql::id_string >
+        canonical_release_type_;
+
+        static const canonical_release_type_ canonical_release;
+
+        // revision
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::uint16_t,
+            pgsql::id_integer >::query_type,
+          pgsql::id_integer >
+        revision_type_;
+
+        static const revision_type_ revision;
+      };
+
+      static const version_class_1_ version;
+    };
+
+    static const id_class_ id;
+
+    // version
+    //
+    struct version_class_
+    {
+      version_class_ ()
+      {
+      }
+
+      // upstream
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      upstream_type_;
+
+      static const upstream_type_ upstream;
+
+      // release
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::basic_string< char >,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      release_type_;
+
+      static const release_type_ release;
+    };
+
+    static const version_class_ version;
+
+    // internal_repository
+    //
+    struct internal_repository_class_
+    {
+      internal_repository_class_ ()
+      {
+      }
+
+      // tenant
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      tenant_type_;
+
+      static const tenant_type_ tenant;
+
+      // canonical_name
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      canonical_name_type_;
+
+      static const canonical_name_type_ canonical_name;
+    };
+
+    static const internal_repository_class_ internal_repository;
+
+    // buildable
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        bool,
+        pgsql::id_boolean >::query_type,
+      pgsql::id_boolean >
+    buildable_type_;
+
+    static const buildable_type_ buildable;
+  };
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_::tenant_type_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_::
+  tenant (A::table_name, "\"tenant\"", 0);
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_::name_type_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_::
+  name (A::table_name, "\"name\"", "(?)::CITEXT");
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::epoch_type_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::
+  epoch (A::table_name, "\"version_epoch\"", 0);
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::canonical_upstream_type_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::
+  canonical_upstream (A::table_name, "\"version_canonical_upstream\"", 0);
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::canonical_release_type_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::
+  canonical_release (A::table_name, "\"version_canonical_release\"", 0);
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::revision_type_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::
+  revision (A::table_name, "\"version_revision\"", 0);
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version;
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::id_class_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::id;
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::version_class_::upstream_type_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::version_class_::
+  upstream (A::table_name, "\"version_upstream\"", 0);
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::version_class_::release_type_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::version_class_::
+  release (A::table_name, "\"version_release\"", 0);
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::version_class_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::version;
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::internal_repository_class_::tenant_type_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::internal_repository_class_::
+  tenant (A::table_name, "\"internal_repository_tenant\"", 0);
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::internal_repository_class_::canonical_name_type_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::internal_repository_class_::
+  canonical_name (A::table_name, "\"internal_repository_canonical_name\"", 0);
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::internal_repository_class_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::internal_repository;
+
+  template <typename A>
+  const typename pointer_query_columns< ::brep::build_package, id_pgsql, A >::buildable_type_
+  pointer_query_columns< ::brep::build_package, id_pgsql, A >::
+  buildable (A::table_name, "\"buildable\"", 0);
+
+  template <>
+  class access::object_traits_impl< ::brep::build_package, id_pgsql >:
+    public access::object_traits< ::brep::build_package >
+  {
+    public:
+    struct id_image_type
+    {
+      composite_value_traits< ::brep::package_id, id_pgsql >::image_type id_value;
+
+      std::size_t version;
+    };
+
+    struct image_type
+    {
+      // id
+      //
+      composite_value_traits< ::brep::package_id, id_pgsql >::image_type id_value;
+
+      // version
+      //
+      composite_value_traits< ::brep::upstream_version, id_pgsql >::image_type version_value;
+
+      // internal_repository
+      //
+      composite_value_traits< ::brep::repository_id, id_pgsql >::image_type internal_repository_value;
+
+      // buildable
+      //
+      bool buildable_value;
+      bool buildable_null;
+
+      std::size_t version;
+    };
+
+    struct extra_statement_cache_type;
+
+    // tests
+    //
+    struct tests_traits
+    {
+      static const char select_name[];
+      static const char insert_name[];
+      static const char delete_name[];
+
+      static const unsigned int insert_types[];
+
+      static const std::size_t id_column_count = 6UL;
+      static const std::size_t data_column_count = 14UL;
+
+      static const bool versioned = false;
+
+      static const char insert_statement[];
+      static const char select_statement[];
+      static const char delete_statement[];
+
+      typedef ::butl::small_vector< ::brep::build_test_dependency, 1 > container_type;
+      typedef
+      odb::access::container_traits<container_type>
+      container_traits_type;
+      typedef container_traits_type::index_type index_type;
+      typedef container_traits_type::value_type value_type;
+
+      typedef ordered_functions<index_type, value_type> functions_type;
+      typedef pgsql::container_statements< tests_traits > statements_type;
+
+      struct data_image_type
+      {
+        // index
+        //
+        long long index_value;
+        bool index_null;
+
+        // value
+        //
+        composite_value_traits< value_type, id_pgsql >::image_type value_value;
+
+        std::size_t version;
+      };
+
+      static void
+      bind (pgsql::bind*,
+            const pgsql::bind* id,
+            std::size_t id_size,
+            data_image_type&);
+
+      static void
+      grow (data_image_type&,
+            bool*);
+
+      static void
+      init (data_image_type&,
+            index_type*,
+            const value_type&);
+
+      static void
+      init (index_type&,
+            value_type&,
+            const data_image_type&,
+            database*);
+
+      static void
+      insert (index_type, const value_type&, void*);
+
+      static bool
+      select (index_type&, value_type&, void*);
+
+      static void
+      delete_ (void*);
+
+      static void
+      persist (const container_type&,
+               statements_type&);
+
+      static void
+      load (container_type&,
+            statements_type&);
+
+      static void
+      erase (statements_type&);
+    };
+
+    // builds
+    //
+    struct builds_traits
+    {
+      static const char select_name[];
+      static const char insert_name[];
+      static const char delete_name[];
+
+      static const unsigned int insert_types[];
+
+      static const std::size_t id_column_count = 6UL;
+      static const std::size_t data_column_count = 9UL;
+
+      static const bool versioned = false;
+
+      static const char insert_statement[];
+      static const char select_statement[];
+      static const char delete_statement[];
+
+      typedef ::brep::build_class_exprs container_type;
+      typedef
+      odb::access::container_traits<container_type>
+      container_traits_type;
+      typedef container_traits_type::index_type index_type;
+      typedef container_traits_type::value_type value_type;
+
+      typedef ordered_functions<index_type, value_type> functions_type;
+      typedef pgsql::container_statements< builds_traits > statements_type;
+
+      struct data_image_type
+      {
+        // index
+        //
+        long long index_value;
+        bool index_null;
+
+        // value
+        //
+        composite_value_traits< value_type, id_pgsql >::image_type value_value;
+
+        std::size_t version;
+      };
+
+      static void
+      bind (pgsql::bind*,
+            const pgsql::bind* id,
+            std::size_t id_size,
+            data_image_type&);
+
+      static void
+      grow (data_image_type&,
+            bool*);
+
+      static void
+      init (data_image_type&,
+            index_type*,
+            const value_type&);
+
+      static void
+      init (index_type&,
+            value_type&,
+            const data_image_type&,
+            database*);
+
+      static void
+      insert (index_type, const value_type&, void*);
+
+      static bool
+      select (index_type&, value_type&, void*);
+
+      static void
+      delete_ (void*);
+
+      static void
+      persist (const container_type&,
+               statements_type&);
+
+      static void
+      load (container_type&,
+            statements_type&);
+
+      static void
+      erase (statements_type&);
+    };
+
+    // constraints
+    //
+    struct constraints_traits
+    {
+      static const char select_name[];
+      static const char insert_name[];
+      static const char delete_name[];
+
+      static const unsigned int insert_types[];
+
+      static const std::size_t id_column_count = 6UL;
+      static const std::size_t data_column_count = 11UL;
+
+      static const bool versioned = false;
+
+      static const char insert_statement[];
+      static const char select_statement[];
+      static const char delete_statement[];
+
+      typedef ::brep::build_constraints container_type;
+      typedef
+      odb::access::container_traits<container_type>
+      container_traits_type;
+      typedef container_traits_type::index_type index_type;
+      typedef container_traits_type::value_type value_type;
+
+      typedef ordered_functions<index_type, value_type> functions_type;
+      typedef pgsql::container_statements< constraints_traits > statements_type;
+
+      struct data_image_type
+      {
+        // index
+        //
+        long long index_value;
+        bool index_null;
+
+        // value
+        //
+        composite_value_traits< value_type, id_pgsql >::image_type value_value;
+
+        std::size_t version;
+      };
+
+      static void
+      bind (pgsql::bind*,
+            const pgsql::bind* id,
+            std::size_t id_size,
+            data_image_type&);
+
+      static void
+      grow (data_image_type&,
+            bool*);
+
+      static void
+      init (data_image_type&,
+            index_type*,
+            const value_type&);
+
+      static void
+      init (index_type&,
+            value_type&,
+            const data_image_type&,
+            database*);
+
+      static void
+      insert (index_type, const value_type&, void*);
+
+      static bool
+      select (index_type&, value_type&, void*);
+
+      static void
+      delete_ (void*);
+
+      static void
+      persist (const container_type&,
+               statements_type&);
+
+      static void
+      load (container_type&,
+            statements_type&);
+
+      static void
+      erase (statements_type&);
+    };
+
+    struct internal_repository_tag;
+
+    using object_traits<object_type>::id;
+
+    static id_type
+    id (const image_type&);
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static void
+    bind (pgsql::bind*, id_image_type&);
+
+    static bool
+    init (image_type&,
+          const object_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (object_type&,
+          const image_type&,
+          database*);
+
+    static void
+    init (id_image_type&, const id_type&);
+
+    typedef pgsql::object_statements<object_type> statements_type;
+
+    typedef pgsql::query_base query_base_type;
+
+    static const std::size_t column_count = 11UL;
+    static const std::size_t id_column_count = 6UL;
+    static const std::size_t inverse_column_count = 0UL;
+    static const std::size_t readonly_column_count = 5UL;
+    static const std::size_t managed_optimistic_column_count = 0UL;
+
+    static const std::size_t separate_load_column_count = 0UL;
+    static const std::size_t separate_update_column_count = 0UL;
+
+    static const bool versioned = false;
+
+    static const char persist_statement[];
+    static const char find_statement[];
+    static const char erase_statement[];
+    static const char query_statement[];
+    static const char erase_query_statement[];
+
+    static const char table_name[];
+
+    static void
+    persist (database&, const object_type&);
+
+    static pointer_type
+    find (database&, const id_type&);
+
+    static bool
+    find (database&, const id_type&, object_type&);
+
+    static bool
+    reload (database&, object_type&);
+
+    static void
+    erase (database&, const id_type&);
+
+    static void
+    erase (database&, const object_type&);
+
+    static result<object_type>
+    query (database&, const query_base_type&);
+
+    static unsigned long long
+    erase_query (database&, const query_base_type&);
+
+    static odb::details::shared_ptr<prepared_query_impl>
+    prepare_query (connection&, const char*, const query_base_type&);
+
+    static odb::details::shared_ptr<result_impl>
+    execute_query (prepared_query_impl&);
+
+    static const char persist_statement_name[];
+    static const char find_statement_name[];
+    static const char erase_statement_name[];
+    static const char query_statement_name[];
+    static const char erase_query_statement_name[];
+
+    static const unsigned int persist_statement_types[];
+    static const unsigned int find_statement_types[];
+
+    public:
+    static bool
+    find_ (statements_type&,
+           const id_type*);
+
+    static void
+    load_ (statements_type&,
+           object_type&,
+           bool reload);
+  };
+
+  template <>
+  class access::object_traits_impl< ::brep::build_package, id_common >:
+    public access::object_traits_impl< ::brep::build_package, id_pgsql >
+  {
+  };
+
+  // buildable_package
+  //
+  template <>
+  class access::view_traits_impl< ::brep::buildable_package, id_pgsql >:
+    public access::view_traits< ::brep::buildable_package >
+  {
+    public:
+    struct image_type
+    {
+      // id
+      //
+      composite_value_traits< ::brep::package_id, id_pgsql >::image_type id_value;
+
+      // version
+      //
+      composite_value_traits< ::brep::upstream_version, id_pgsql >::image_type version_value;
+
+      // archived
+      //
+      bool archived_value;
+      bool archived_null;
+
+      std::size_t version;
+    };
+
+    typedef pgsql::view_statements<view_type> statements_type;
+
+    typedef pgsql::query_base query_base_type;
+    struct query_columns;
+
+    static const bool versioned = false;
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&);
+
+    static void
+    init (view_type&,
+          const image_type&,
+          database*);
+
+    static const std::size_t column_count = 9UL;
+
+    static query_base_type
+    query_statement (const query_base_type&);
+
+    static result<view_type>
+    query (database&, const query_base_type&);
+
+    static odb::details::shared_ptr<prepared_query_impl>
+    prepare_query (connection&, const char*, const query_base_type&);
+
+    static odb::details::shared_ptr<result_impl>
+    execute_query (prepared_query_impl&);
+
+    static const char query_statement_name[];
+  };
+
+  template <>
+  class access::view_traits_impl< ::brep::buildable_package, id_common >:
+    public access::view_traits_impl< ::brep::buildable_package, id_pgsql >
+  {
+  };
+
+  // buildable_package_count
+  //
+  template <>
+  class access::view_traits_impl< ::brep::buildable_package_count, id_pgsql >:
+    public access::view_traits< ::brep::buildable_package_count >
+  {
+    public:
+    struct image_type
+    {
+      // result
+      //
+      long long result_value;
+      bool result_null;
+
+      std::size_t version;
+    };
+
+    typedef pgsql::view_statements<view_type> statements_type;
+
+    typedef pgsql::query_base query_base_type;
+    struct query_columns;
+
+    static const bool versioned = false;
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&);
+
+    static void
+    init (view_type&,
+          const image_type&,
+          database*);
+
+    static const std::size_t column_count = 1UL;
+
+    static query_base_type
+    query_statement (const query_base_type&);
+
+    static result<view_type>
+    query (database&, const query_base_type&);
+
+    static odb::details::shared_ptr<prepared_query_impl>
+    prepare_query (connection&, const char*, const query_base_type&);
+
+    static odb::details::shared_ptr<result_impl>
+    execute_query (prepared_query_impl&);
+
+    static const char query_statement_name[];
+  };
+
+  template <>
+  class access::view_traits_impl< ::brep::buildable_package_count, id_common >:
+    public access::view_traits_impl< ::brep::buildable_package_count, id_pgsql >
+  {
+  };
+
+  // build_tenant
+  //
+  // build_repository
+  //
+  // build_package
+  //
+  template <>
+  struct alias_traits<
+    ::brep::build_repository,
+    id_pgsql,
+    access::object_traits_impl< ::brep::build_package, id_pgsql >::internal_repository_tag>
+  {
+    static const char table_name[];
+  };
+
+  template <>
+  struct query_columns_base< ::brep::build_package, id_pgsql >
+  {
+    // internal_repository
+    //
+    typedef
+    odb::alias_traits<
+      ::brep::build_repository,
+      id_pgsql,
+      access::object_traits_impl< ::brep::build_package, id_pgsql >::internal_repository_tag>
+    internal_repository_alias_;
+  };
+
+  template <typename A>
+  struct query_columns< ::brep::build_package, id_pgsql, A >:
+    query_columns_base< ::brep::build_package, id_pgsql >
+  {
+    // id
+    //
+    struct id_class_
+    {
+      id_class_ ()
+      {
+      }
+
+      // tenant
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      tenant_type_;
+
+      static const tenant_type_ tenant;
+
+      // name
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::bpkg::package_name,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      name_type_;
+
+      static const name_type_ name;
+
+      // version
+      //
+      struct version_class_1_
+      {
+        version_class_1_ ()
+        {
+        }
+
+        // epoch
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::uint16_t,
+            pgsql::id_integer >::query_type,
+          pgsql::id_integer >
+        epoch_type_;
+
+        static const epoch_type_ epoch;
+
+        // canonical_upstream
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::std::string,
+            pgsql::id_string >::query_type,
+          pgsql::id_string >
+        canonical_upstream_type_;
+
+        static const canonical_upstream_type_ canonical_upstream;
+
+        // canonical_release
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::std::string,
+            pgsql::id_string >::query_type,
+          pgsql::id_string >
+        canonical_release_type_;
+
+        static const canonical_release_type_ canonical_release;
+
+        // revision
+        //
+        typedef
+        pgsql::query_column<
+          pgsql::value_traits<
+            ::uint16_t,
+            pgsql::id_integer >::query_type,
+          pgsql::id_integer >
+        revision_type_;
+
+        static const revision_type_ revision;
+      };
+
+      static const version_class_1_ version;
+    };
+
+    static const id_class_ id;
+
+    // version
+    //
+    struct version_class_
+    {
+      version_class_ ()
+      {
+      }
+
+      // upstream
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      upstream_type_;
+
+      static const upstream_type_ upstream;
+
+      // release
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::basic_string< char >,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      release_type_;
+
+      static const release_type_ release;
+    };
+
+    static const version_class_ version;
+
+    // internal_repository
+    //
+    struct internal_repository_column_class_
+    {
+      internal_repository_column_class_ ()
+      {
+      }
+
+      // tenant
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      tenant_type_;
+
+      static const tenant_type_ tenant;
+
+      // canonical_name
+      //
+      typedef
+      pgsql::query_column<
+        pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::query_type,
+        pgsql::id_string >
+      canonical_name_type_;
+
+      static const canonical_name_type_ canonical_name;
+    };
+
+    typedef
+    odb::query_pointer<
+      odb::pointer_query_columns<
+        ::brep::build_repository,
+        id_pgsql,
+        internal_repository_alias_ > >
+    internal_repository_pointer_type_;
+
+    struct internal_repository_type_: internal_repository_pointer_type_, internal_repository_column_class_
+    {
+      internal_repository_type_ ()
+      {
+      }
+    };
+
+    static const internal_repository_type_ internal_repository;
+
+    // buildable
+    //
+    typedef
+    pgsql::query_column<
+      pgsql::value_traits<
+        bool,
+        pgsql::id_boolean >::query_type,
+      pgsql::id_boolean >
+    buildable_type_;
+
+    static const buildable_type_ buildable;
+  };
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::id_class_::tenant_type_
+  query_columns< ::brep::build_package, id_pgsql, A >::id_class_::
+  tenant (A::table_name, "\"tenant\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::id_class_::name_type_
+  query_columns< ::brep::build_package, id_pgsql, A >::id_class_::
+  name (A::table_name, "\"name\"", "(?)::CITEXT");
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::epoch_type_
+  query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::
+  epoch (A::table_name, "\"version_epoch\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::canonical_upstream_type_
+  query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::
+  canonical_upstream (A::table_name, "\"version_canonical_upstream\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::canonical_release_type_
+  query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::
+  canonical_release (A::table_name, "\"version_canonical_release\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::revision_type_
+  query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_::
+  revision (A::table_name, "\"version_revision\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version_class_1_
+  query_columns< ::brep::build_package, id_pgsql, A >::id_class_::version;
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::id_class_
+  query_columns< ::brep::build_package, id_pgsql, A >::id;
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::version_class_::upstream_type_
+  query_columns< ::brep::build_package, id_pgsql, A >::version_class_::
+  upstream (A::table_name, "\"version_upstream\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::version_class_::release_type_
+  query_columns< ::brep::build_package, id_pgsql, A >::version_class_::
+  release (A::table_name, "\"version_release\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::version_class_
+  query_columns< ::brep::build_package, id_pgsql, A >::version;
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::internal_repository_column_class_::tenant_type_
+  query_columns< ::brep::build_package, id_pgsql, A >::internal_repository_column_class_::
+  tenant (A::table_name, "\"internal_repository_tenant\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::internal_repository_column_class_::canonical_name_type_
+  query_columns< ::brep::build_package, id_pgsql, A >::internal_repository_column_class_::
+  canonical_name (A::table_name, "\"internal_repository_canonical_name\"", 0);
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::internal_repository_type_
+  query_columns< ::brep::build_package, id_pgsql, A >::internal_repository;
+
+  template <typename A>
+  const typename query_columns< ::brep::build_package, id_pgsql, A >::buildable_type_
+  query_columns< ::brep::build_package, id_pgsql, A >::
+  buildable (A::table_name, "\"buildable\"", 0);
+
+  // buildable_package
+  //
+  struct access::view_traits_impl< ::brep::buildable_package, id_pgsql >::query_columns
+  {
+    // build_package
+    //
+    typedef
+    odb::pointer_query_columns<
+      ::brep::build_package,
+      id_pgsql,
+      odb::access::object_traits_impl< ::brep::build_package, id_pgsql > >
+    build_package;
+
+    // build_repository
+    //
+    typedef
+    odb::pointer_query_columns<
+      ::brep::build_repository,
+      id_pgsql,
+      odb::access::object_traits_impl< ::brep::build_repository, id_pgsql > >
+    build_repository;
+
+    // build_tenant
+    //
+    typedef
+    odb::pointer_query_columns<
+      ::brep::build_tenant,
+      id_pgsql,
+      odb::access::object_traits_impl< ::brep::build_tenant, id_pgsql > >
+    build_tenant;
+  };
+
+  // buildable_package_count
+  //
+  struct access::view_traits_impl< ::brep::buildable_package_count, id_pgsql >::query_columns
+  {
+    // build_package
+    //
+    typedef
+    odb::pointer_query_columns<
+      ::brep::build_package,
+      id_pgsql,
+      odb::access::object_traits_impl< ::brep::build_package, id_pgsql > >
+    build_package;
+
+    // build_repository
+    //
+    typedef
+    odb::pointer_query_columns<
+      ::brep::build_repository,
+      id_pgsql,
+      odb::access::object_traits_impl< ::brep::build_repository, id_pgsql > >
+    build_repository;
+
+    // build_tenant
+    //
+    typedef
+    odb::pointer_query_columns<
+      ::brep::build_tenant,
+      id_pgsql,
+      odb::access::object_traits_impl< ::brep::build_tenant, id_pgsql > >
+    build_tenant;
+  };
+}
+
+#include <libbrep/build-package-odb.ixx>
+
+#include <odb/post.hxx>
+
+#endif // LIBBREP_BUILD_PACKAGE_ODB_HXX
diff --git a/libbrep/build-package-odb.ixx b/libbrep/build-package-odb.ixx
new file mode 100644
index 0000000..b2c2f40
--- /dev/null
+++ b/libbrep/build-package-odb.ixx
@@ -0,0 +1,211 @@
+// -*- C++ -*-
+//
+// This file was generated by ODB, object-relational mapping (ORM)
+// compiler for C++.
+//
+
+namespace odb
+{
+  // build_tenant
+  //
+
+  inline
+  access::object_traits< ::brep::build_tenant >::id_type
+  access::object_traits< ::brep::build_tenant >::
+  id (const object_type& o)
+  {
+    return o.id;
+  }
+
+  inline
+  void access::object_traits< ::brep::build_tenant >::
+  callback (database& db, object_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+
+  inline
+  void access::object_traits< ::brep::build_tenant >::
+  callback (database& db, const object_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+
+  // build_repository
+  //
+
+  inline
+  access::object_traits< ::brep::build_repository >::id_type
+  access::object_traits< ::brep::build_repository >::
+  id (const object_type& o)
+  {
+    return o.id;
+  }
+
+  inline
+  void access::object_traits< ::brep::build_repository >::
+  callback (database& db, object_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+
+  inline
+  void access::object_traits< ::brep::build_repository >::
+  callback (database& db, const object_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+
+  // build_package
+  //
+
+  inline
+  access::object_traits< ::brep::build_package >::id_type
+  access::object_traits< ::brep::build_package >::
+  id (const object_type& o)
+  {
+    return o.id;
+  }
+
+  inline
+  void access::object_traits< ::brep::build_package >::
+  callback (database& db, object_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+
+  inline
+  void access::object_traits< ::brep::build_package >::
+  callback (database& db, const object_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+
+  // buildable_package
+  //
+
+  inline
+  void access::view_traits< ::brep::buildable_package >::
+  callback (database& db, view_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+
+  // buildable_package_count
+  //
+
+  inline
+  void access::view_traits< ::brep::buildable_package_count >::
+  callback (database& db, view_type& x, callback_event e)
+  {
+    ODB_POTENTIALLY_UNUSED (db);
+    ODB_POTENTIALLY_UNUSED (x);
+    ODB_POTENTIALLY_UNUSED (e);
+  }
+}
+
+namespace odb
+{
+  // build_tenant
+  //
+
+  inline
+  void access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  erase (database& db, const object_type& obj)
+  {
+    callback (db, obj, callback_event::pre_erase);
+    erase (db, id (obj));
+    callback (db, obj, callback_event::post_erase);
+  }
+
+  inline
+  void access::object_traits_impl< ::brep::build_tenant, id_pgsql >::
+  load_ (statements_type& sts,
+         object_type& obj,
+         bool)
+  {
+    ODB_POTENTIALLY_UNUSED (sts);
+    ODB_POTENTIALLY_UNUSED (obj);
+  }
+
+  // build_repository
+  //
+
+  inline
+  void access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  erase (database& db, const object_type& obj)
+  {
+    callback (db, obj, callback_event::pre_erase);
+    erase (db, id (obj));
+    callback (db, obj, callback_event::post_erase);
+  }
+
+  inline
+  void access::object_traits_impl< ::brep::build_repository, id_pgsql >::
+  load_ (statements_type& sts,
+         object_type& obj,
+         bool)
+  {
+    ODB_POTENTIALLY_UNUSED (sts);
+    ODB_POTENTIALLY_UNUSED (obj);
+  }
+
+  // build_test_dependency
+  //
+
+  inline
+  bool access::composite_value_traits< ::brep::build_test_dependency, id_pgsql >::
+  get_null (const image_type& i)
+  {
+    bool r (true);
+    r = r && i.name_null;
+    r = r && composite_value_traits< ::brep::package_id, id_pgsql >::get_null (i.package_value);
+    return r;
+  }
+
+  inline
+  void access::composite_value_traits< ::brep::build_test_dependency, id_pgsql >::
+  set_null (image_type& i,
+            pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    i.name_null = true;
+    composite_value_traits< ::brep::package_id, id_pgsql >::set_null (i.package_value, sk);
+  }
+
+  // build_package
+  //
+
+  inline
+  void access::object_traits_impl< ::brep::build_package, id_pgsql >::
+  erase (database& db, const object_type& obj)
+  {
+    callback (db, obj, callback_event::pre_erase);
+    erase (db, id (obj));
+    callback (db, obj, callback_event::post_erase);
+  }
+
+  // buildable_package
+  //
+
+  // buildable_package_count
+  //
+}
+
diff --git a/libbrep/build.sql b/libbrep/build.sql
new file mode 100644
index 0000000..2d62823
--- /dev/null
+++ b/libbrep/build.sql
@@ -0,0 +1,158 @@
+/* This file was generated by ODB, object-relational mapping (ORM)
+ * compiler for C++.
+ */
+
+DROP TABLE IF EXISTS "build_delay" CASCADE;
+
+DROP TABLE IF EXISTS "build_results" CASCADE;
+
+DROP TABLE IF EXISTS "build" CASCADE;
+
+DROP TABLE IF EXISTS "schema_version";
+
+CREATE TABLE "build" (
+  "package_tenant" TEXT NOT NULL,
+  "package_name" CITEXT NOT NULL,
+  "package_version_epoch" INTEGER NOT NULL,
+  "package_version_canonical_upstream" TEXT NOT NULL,
+  "package_version_canonical_release" TEXT NOT NULL COLLATE "C",
+  "package_version_revision" INTEGER NOT NULL,
+  "configuration" TEXT NOT NULL,
+  "toolchain_name" TEXT NOT NULL,
+  "toolchain_version_epoch" INTEGER NOT NULL,
+  "toolchain_version_canonical_upstream" TEXT NOT NULL,
+  "toolchain_version_canonical_release" TEXT NOT NULL COLLATE "C",
+  "toolchain_version_revision" INTEGER NOT NULL,
+  "package_version_upstream" TEXT NOT NULL,
+  "package_version_release" TEXT NULL,
+  "toolchain_version_upstream" TEXT NOT NULL,
+  "toolchain_version_release" TEXT NULL,
+  "state" TEXT NOT NULL,
+  "timestamp" BIGINT NOT NULL,
+  "force" TEXT NOT NULL,
+  "status" TEXT NULL,
+  "completion_timestamp" BIGINT NOT NULL DEFAULT 0,
+  "agent_fingerprint" TEXT NULL,
+  "agent_challenge" TEXT NULL,
+  "machine" TEXT NOT NULL,
+  "machine_summary" TEXT NOT NULL,
+  "target" TEXT NOT NULL,
+  PRIMARY KEY ("package_tenant",
+               "package_name",
+               "package_version_epoch",
+               "package_version_canonical_upstream",
+               "package_version_canonical_release",
+               "package_version_revision",
+               "configuration",
+               "toolchain_name",
+               "toolchain_version_epoch",
+               "toolchain_version_canonical_upstream",
+               "toolchain_version_canonical_release",
+               "toolchain_version_revision"));
+
+CREATE INDEX "build_timestamp_i"
+  ON "build" ("timestamp");
+
+CREATE TABLE "build_results" (
+  "package_tenant" TEXT NOT NULL,
+  "package_name" CITEXT NOT NULL,
+  "package_version_epoch" INTEGER NOT NULL,
+  "package_version_canonical_upstream" TEXT NOT NULL,
+  "package_version_canonical_release" TEXT NOT NULL COLLATE "C",
+  "package_version_revision" INTEGER NOT NULL,
+  "configuration" TEXT NOT NULL,
+  "toolchain_name" TEXT NOT NULL,
+  "toolchain_version_epoch" INTEGER NOT NULL,
+  "toolchain_version_canonical_upstream" TEXT NOT NULL,
+  "toolchain_version_canonical_release" TEXT NOT NULL COLLATE "C",
+  "toolchain_version_revision" INTEGER NOT NULL,
+  "index" BIGINT NOT NULL,
+  "operation" TEXT NOT NULL,
+  "status" TEXT NOT NULL,
+  "log" TEXT NOT NULL,
+  CONSTRAINT "object_id_fk"
+    FOREIGN KEY ("package_tenant",
+                 "package_name",
+                 "package_version_epoch",
+                 "package_version_canonical_upstream",
+                 "package_version_canonical_release",
+                 "package_version_revision",
+                 "configuration",
+                 "toolchain_name",
+                 "toolchain_version_epoch",
+                 "toolchain_version_canonical_upstream",
+                 "toolchain_version_canonical_release",
+                 "toolchain_version_revision")
+    REFERENCES "build" ("package_tenant",
+                        "package_name",
+                        "package_version_epoch",
+                        "package_version_canonical_upstream",
+                        "package_version_canonical_release",
+                        "package_version_revision",
+                        "configuration",
+                        "toolchain_name",
+                        "toolchain_version_epoch",
+                        "toolchain_version_canonical_upstream",
+                        "toolchain_version_canonical_release",
+                        "toolchain_version_revision")
+    ON DELETE CASCADE);
+
+CREATE INDEX "build_results_object_id_i"
+  ON "build_results" (
+    "package_tenant",
+    "package_name",
+    "package_version_epoch",
+    "package_version_canonical_upstream",
+    "package_version_canonical_release",
+    "package_version_revision",
+    "configuration",
+    "toolchain_name",
+    "toolchain_version_epoch",
+    "toolchain_version_canonical_upstream",
+    "toolchain_version_canonical_release",
+    "toolchain_version_revision");
+
+CREATE INDEX "build_results_index_i"
+  ON "build_results" ("index");
+
+CREATE TABLE "build_delay" (
+  "package_tenant" TEXT NOT NULL,
+  "package_name" CITEXT NOT NULL,
+  "package_version_epoch" INTEGER NOT NULL,
+  "package_version_canonical_upstream" TEXT NOT NULL,
+  "package_version_canonical_release" TEXT NOT NULL COLLATE "C",
+  "package_version_revision" INTEGER NOT NULL,
+  "configuration" TEXT NOT NULL,
+  "toolchain_name" TEXT NOT NULL,
+  "toolchain_version_epoch" INTEGER NOT NULL,
+  "toolchain_version_canonical_upstream" TEXT NOT NULL,
+  "toolchain_version_canonical_release" TEXT NOT NULL COLLATE "C",
+  "toolchain_version_revision" INTEGER NOT NULL,
+  "package_version_upstream" TEXT NOT NULL,
+  "package_version_release" TEXT NULL,
+  "toolchain_version_upstream" TEXT NOT NULL,
+  "toolchain_version_release" TEXT NULL,
+  "report_timestamp" BIGINT NOT NULL,
+  "package_timestamp" BIGINT NOT NULL,
+  PRIMARY KEY ("package_tenant",
+               "package_name",
+               "package_version_epoch",
+               "package_version_canonical_upstream",
+               "package_version_canonical_release",
+               "package_version_revision",
+               "configuration",
+               "toolchain_name",
+               "toolchain_version_epoch",
+               "toolchain_version_canonical_upstream",
+               "toolchain_version_canonical_release",
+               "toolchain_version_revision"));
+
+CREATE TABLE "schema_version" (
+  "name" TEXT NOT NULL PRIMARY KEY,
+  "version" BIGINT NOT NULL,
+  "migration" BOOLEAN NOT NULL);
+
+INSERT INTO "schema_version" (
+  "name", "version", "migration")
+  VALUES ('build', 12, FALSE);
+
diff --git a/libbrep/common-odb.cxx b/libbrep/common-odb.cxx
new file mode 100644
index 0000000..261b29b
--- /dev/null
+++ b/libbrep/common-odb.cxx
@@ -0,0 +1,1744 @@
+// -*- C++ -*-
+//
+// This file was generated by ODB, object-relational mapping (ORM)
+// compiler for C++.
+//
+
+#include <odb/pre.hxx>
+
+#include <libbrep/common-odb.hxx>
+
+#include <cassert>
+#include <cstring>  // std::memcpy
+
+
+#include <odb/pgsql/traits.hxx>
+#include <odb/pgsql/database.hxx>
+#include <odb/pgsql/transaction.hxx>
+#include <odb/pgsql/connection.hxx>
+#include <odb/pgsql/statement.hxx>
+#include <odb/pgsql/statement-cache.hxx>
+#include <odb/pgsql/container-statements.hxx>
+#include <odb/pgsql/exceptions.hxx>
+
+namespace odb
+{
+  // _version
+  //
+
+  bool access::composite_value_traits< ::brep::_version, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // epoch
+    //
+    t[0UL] = 0;
+
+    // canonical_upstream
+    //
+    if (t[1UL])
+    {
+      i.canonical_upstream_value.capacity (i.canonical_upstream_size);
+      grew = true;
+    }
+
+    // canonical_release
+    //
+    if (t[2UL])
+    {
+      i.canonical_release_value.capacity (i.canonical_release_size);
+      grew = true;
+    }
+
+    // revision
+    //
+    t[3UL] = 0;
+
+    // upstream
+    //
+    if (t[4UL])
+    {
+      i.upstream_value.capacity (i.upstream_size);
+      grew = true;
+    }
+
+    // release
+    //
+    if (t[5UL])
+    {
+      i.release_value.capacity (i.release_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::_version, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // epoch
+    //
+    b[n].type = pgsql::bind::integer;
+    b[n].buffer = &i.epoch_value;
+    b[n].is_null = &i.epoch_null;
+    n++;
+
+    // canonical_upstream
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.canonical_upstream_value.data ();
+    b[n].capacity = i.canonical_upstream_value.capacity ();
+    b[n].size = &i.canonical_upstream_size;
+    b[n].is_null = &i.canonical_upstream_null;
+    n++;
+
+    // canonical_release
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.canonical_release_value.data ();
+    b[n].capacity = i.canonical_release_value.capacity ();
+    b[n].size = &i.canonical_release_size;
+    b[n].is_null = &i.canonical_release_null;
+    n++;
+
+    // revision
+    //
+    b[n].type = pgsql::bind::integer;
+    b[n].buffer = &i.revision_value;
+    b[n].is_null = &i.revision_null;
+    n++;
+
+    // upstream
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.upstream_value.data ();
+    b[n].capacity = i.upstream_value.capacity ();
+    b[n].size = &i.upstream_size;
+    b[n].is_null = &i.upstream_null;
+    n++;
+
+    // release
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.release_value.data ();
+    b[n].capacity = i.release_value.capacity ();
+    b[n].size = &i.release_size;
+    b[n].is_null = &i.release_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::brep::_version, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // epoch
+    //
+    {
+      ::uint16_t const& v =
+        o.epoch;
+
+      bool is_null (false);
+      pgsql::value_traits<
+          ::uint16_t,
+          pgsql::id_integer >::set_image (
+        i.epoch_value, is_null, v);
+      i.epoch_null = is_null;
+    }
+
+    // canonical_upstream
+    //
+    {
+      ::std::string const& v =
+        o.canonical_upstream;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.canonical_upstream_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.canonical_upstream_value,
+        size,
+        is_null,
+        v);
+      i.canonical_upstream_null = is_null;
+      i.canonical_upstream_size = size;
+      grew = grew || (cap != i.canonical_upstream_value.capacity ());
+    }
+
+    // canonical_release
+    //
+    {
+      ::std::string const& v =
+        o.canonical_release;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.canonical_release_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.canonical_release_value,
+        size,
+        is_null,
+        v);
+      i.canonical_release_null = is_null;
+      i.canonical_release_size = size;
+      grew = grew || (cap != i.canonical_release_value.capacity ());
+    }
+
+    // revision
+    //
+    {
+      ::butl::optional< short unsigned int > const& v =
+        o.revision;
+
+      bool is_null (true);
+      pgsql::value_traits<
+          ::butl::optional< short unsigned int >,
+          pgsql::id_integer >::set_image (
+        i.revision_value, is_null, v);
+      i.revision_null = is_null;
+    }
+
+    // upstream
+    //
+    {
+      ::std::string const& v =
+        o.upstream;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.upstream_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.upstream_value,
+        size,
+        is_null,
+        v);
+      i.upstream_null = is_null;
+      i.upstream_size = size;
+      grew = grew || (cap != i.upstream_value.capacity ());
+    }
+
+    // release
+    //
+    {
+      ::butl::optional< ::std::basic_string< char > > const& v =
+        o.release;
+
+      bool is_null (true);
+      std::size_t size (0);
+      std::size_t cap (i.release_value.capacity ());
+      pgsql::value_traits<
+          ::butl::optional< ::std::basic_string< char > >,
+          pgsql::id_string >::set_image (
+        i.release_value,
+        size,
+        is_null,
+        v);
+      i.release_null = is_null;
+      i.release_size = size;
+      grew = grew || (cap != i.release_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::_version, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // epoch
+    //
+    {
+      ::uint16_t& v =
+        o.epoch;
+
+      pgsql::value_traits<
+          ::uint16_t,
+          pgsql::id_integer >::set_value (
+        v,
+        i.epoch_value,
+        i.epoch_null);
+    }
+
+    // canonical_upstream
+    //
+    {
+      ::std::string& v =
+        o.canonical_upstream;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.canonical_upstream_value,
+        i.canonical_upstream_size,
+        i.canonical_upstream_null);
+    }
+
+    // canonical_release
+    //
+    {
+      ::std::string& v =
+        o.canonical_release;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.canonical_release_value,
+        i.canonical_release_size,
+        i.canonical_release_null);
+    }
+
+    // revision
+    //
+    {
+      ::butl::optional< short unsigned int >& v =
+        o.revision;
+
+      pgsql::value_traits<
+          ::butl::optional< short unsigned int >,
+          pgsql::id_integer >::set_value (
+        v,
+        i.revision_value,
+        i.revision_null);
+    }
+
+    // upstream
+    //
+    {
+      ::std::string& v =
+        o.upstream;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.upstream_value,
+        i.upstream_size,
+        i.upstream_null);
+    }
+
+    // release
+    //
+    {
+      ::butl::optional< ::std::basic_string< char > >& v =
+        o.release;
+
+      pgsql::value_traits<
+          ::butl::optional< ::std::basic_string< char > >,
+          pgsql::id_string >::set_value (
+        v,
+        i.release_value,
+        i.release_size,
+        i.release_null);
+    }
+  }
+
+  // build_constraint
+  //
+
+  bool access::composite_value_traits< ::bpkg::build_constraint, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // exclusion
+    //
+    t[0UL] = 0;
+
+    // config
+    //
+    if (t[1UL])
+    {
+      i.config_value.capacity (i.config_size);
+      grew = true;
+    }
+
+    // target
+    //
+    if (t[2UL])
+    {
+      i.target_value.capacity (i.target_size);
+      grew = true;
+    }
+
+    // comment
+    //
+    if (t[3UL])
+    {
+      i.comment_value.capacity (i.comment_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::build_constraint, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // exclusion
+    //
+    b[n].type = pgsql::bind::boolean_;
+    b[n].buffer = &i.exclusion_value;
+    b[n].is_null = &i.exclusion_null;
+    n++;
+
+    // config
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.config_value.data ();
+    b[n].capacity = i.config_value.capacity ();
+    b[n].size = &i.config_size;
+    b[n].is_null = &i.config_null;
+    n++;
+
+    // target
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.target_value.data ();
+    b[n].capacity = i.target_value.capacity ();
+    b[n].size = &i.target_size;
+    b[n].is_null = &i.target_null;
+    n++;
+
+    // comment
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.comment_value.data ();
+    b[n].capacity = i.comment_value.capacity ();
+    b[n].size = &i.comment_size;
+    b[n].is_null = &i.comment_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::bpkg::build_constraint, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // exclusion
+    //
+    {
+      bool const& v =
+        o.exclusion;
+
+      bool is_null (false);
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_image (
+        i.exclusion_value, is_null, v);
+      i.exclusion_null = is_null;
+    }
+
+    // config
+    //
+    {
+      ::std::string const& v =
+        o.config;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.config_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.config_value,
+        size,
+        is_null,
+        v);
+      i.config_null = is_null;
+      i.config_size = size;
+      grew = grew || (cap != i.config_value.capacity ());
+    }
+
+    // target
+    //
+    {
+      ::butl::optional< ::std::basic_string< char > > const& v =
+        o.target;
+
+      bool is_null (true);
+      std::size_t size (0);
+      std::size_t cap (i.target_value.capacity ());
+      pgsql::value_traits<
+          ::butl::optional< ::std::basic_string< char > >,
+          pgsql::id_string >::set_image (
+        i.target_value,
+        size,
+        is_null,
+        v);
+      i.target_null = is_null;
+      i.target_size = size;
+      grew = grew || (cap != i.target_value.capacity ());
+    }
+
+    // comment
+    //
+    {
+      ::std::string const& v =
+        o.comment;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.comment_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.comment_value,
+        size,
+        is_null,
+        v);
+      i.comment_null = is_null;
+      i.comment_size = size;
+      grew = grew || (cap != i.comment_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::build_constraint, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // exclusion
+    //
+    {
+      bool& v =
+        o.exclusion;
+
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_value (
+        v,
+        i.exclusion_value,
+        i.exclusion_null);
+    }
+
+    // config
+    //
+    {
+      ::std::string& v =
+        o.config;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.config_value,
+        i.config_size,
+        i.config_null);
+    }
+
+    // target
+    //
+    {
+      ::butl::optional< ::std::basic_string< char > >& v =
+        o.target;
+
+      pgsql::value_traits<
+          ::butl::optional< ::std::basic_string< char > >,
+          pgsql::id_string >::set_value (
+        v,
+        i.target_value,
+        i.target_size,
+        i.target_null);
+    }
+
+    // comment
+    //
+    {
+      ::std::string& v =
+        o.comment;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.comment_value,
+        i.comment_size,
+        i.comment_null);
+    }
+  }
+
+  // build_class_expr
+  //
+
+  bool access::composite_value_traits< ::bpkg::build_class_expr, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // expression
+    //
+    if (t[0UL])
+    {
+      i.expression_value.capacity (i.expression_size);
+      grew = true;
+    }
+
+    // comment
+    //
+    if (t[1UL])
+    {
+      i.comment_value.capacity (i.comment_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::build_class_expr, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // expression
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.expression_value.data ();
+    b[n].capacity = i.expression_value.capacity ();
+    b[n].size = &i.expression_size;
+    b[n].is_null = &i.expression_null;
+    n++;
+
+    // comment
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.comment_value.data ();
+    b[n].capacity = i.comment_value.capacity ();
+    b[n].size = &i.comment_size;
+    b[n].is_null = &i.comment_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::bpkg::build_class_expr, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // expression
+    //
+    {
+      // From common.hxx:316:5
+      ::std::string const& v =
+        o.string ();
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.expression_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.expression_value,
+        size,
+        is_null,
+        v);
+      i.expression_null = is_null;
+      i.expression_size = size;
+      grew = grew || (cap != i.expression_value.capacity ());
+    }
+
+    // comment
+    //
+    {
+      ::std::string const& v =
+        o.comment;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.comment_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.comment_value,
+        size,
+        is_null,
+        v);
+      i.comment_null = is_null;
+      i.comment_size = size;
+      grew = grew || (cap != i.comment_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::build_class_expr, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // expression
+    //
+    {
+      // From common.hxx:317:5
+      ::std::string v;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.expression_value,
+        i.expression_size,
+        i.expression_null);
+
+      // From common.hxx:317:5
+      o = brep::build_class_expr ((v), "");
+    }
+
+    // comment
+    //
+    {
+      ::std::string& v =
+        o.comment;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.comment_value,
+        i.comment_size,
+        i.comment_null);
+    }
+  }
+
+  // canonical_version
+  //
+
+  bool access::composite_value_traits< ::brep::canonical_version, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // epoch
+    //
+    t[0UL] = 0;
+
+    // canonical_upstream
+    //
+    if (t[1UL])
+    {
+      i.canonical_upstream_value.capacity (i.canonical_upstream_size);
+      grew = true;
+    }
+
+    // canonical_release
+    //
+    if (t[2UL])
+    {
+      i.canonical_release_value.capacity (i.canonical_release_size);
+      grew = true;
+    }
+
+    // revision
+    //
+    t[3UL] = 0;
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::canonical_version, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // epoch
+    //
+    b[n].type = pgsql::bind::integer;
+    b[n].buffer = &i.epoch_value;
+    b[n].is_null = &i.epoch_null;
+    n++;
+
+    // canonical_upstream
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.canonical_upstream_value.data ();
+    b[n].capacity = i.canonical_upstream_value.capacity ();
+    b[n].size = &i.canonical_upstream_size;
+    b[n].is_null = &i.canonical_upstream_null;
+    n++;
+
+    // canonical_release
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.canonical_release_value.data ();
+    b[n].capacity = i.canonical_release_value.capacity ();
+    b[n].size = &i.canonical_release_size;
+    b[n].is_null = &i.canonical_release_null;
+    n++;
+
+    // revision
+    //
+    b[n].type = pgsql::bind::integer;
+    b[n].buffer = &i.revision_value;
+    b[n].is_null = &i.revision_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::brep::canonical_version, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // epoch
+    //
+    {
+      ::uint16_t const& v =
+        o.epoch;
+
+      bool is_null (false);
+      pgsql::value_traits<
+          ::uint16_t,
+          pgsql::id_integer >::set_image (
+        i.epoch_value, is_null, v);
+      i.epoch_null = is_null;
+    }
+
+    // canonical_upstream
+    //
+    {
+      ::std::string const& v =
+        o.canonical_upstream;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.canonical_upstream_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.canonical_upstream_value,
+        size,
+        is_null,
+        v);
+      i.canonical_upstream_null = is_null;
+      i.canonical_upstream_size = size;
+      grew = grew || (cap != i.canonical_upstream_value.capacity ());
+    }
+
+    // canonical_release
+    //
+    {
+      ::std::string const& v =
+        o.canonical_release;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.canonical_release_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.canonical_release_value,
+        size,
+        is_null,
+        v);
+      i.canonical_release_null = is_null;
+      i.canonical_release_size = size;
+      grew = grew || (cap != i.canonical_release_value.capacity ());
+    }
+
+    // revision
+    //
+    {
+      ::uint16_t const& v =
+        o.revision;
+
+      bool is_null (false);
+      pgsql::value_traits<
+          ::uint16_t,
+          pgsql::id_integer >::set_image (
+        i.revision_value, is_null, v);
+      i.revision_null = is_null;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::canonical_version, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // epoch
+    //
+    {
+      ::uint16_t& v =
+        o.epoch;
+
+      pgsql::value_traits<
+          ::uint16_t,
+          pgsql::id_integer >::set_value (
+        v,
+        i.epoch_value,
+        i.epoch_null);
+    }
+
+    // canonical_upstream
+    //
+    {
+      ::std::string& v =
+        o.canonical_upstream;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.canonical_upstream_value,
+        i.canonical_upstream_size,
+        i.canonical_upstream_null);
+    }
+
+    // canonical_release
+    //
+    {
+      ::std::string& v =
+        o.canonical_release;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.canonical_release_value,
+        i.canonical_release_size,
+        i.canonical_release_null);
+    }
+
+    // revision
+    //
+    {
+      ::uint16_t& v =
+        o.revision;
+
+      pgsql::value_traits<
+          ::uint16_t,
+          pgsql::id_integer >::set_value (
+        v,
+        i.revision_value,
+        i.revision_null);
+    }
+  }
+
+  // upstream_version
+  //
+
+  bool access::composite_value_traits< ::brep::upstream_version, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // upstream_
+    //
+    if (t[0UL])
+    {
+      i.upstream_value.capacity (i.upstream_size);
+      grew = true;
+    }
+
+    // release_
+    //
+    if (t[1UL])
+    {
+      i.release_value.capacity (i.release_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::upstream_version, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // upstream_
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.upstream_value.data ();
+    b[n].capacity = i.upstream_value.capacity ();
+    b[n].size = &i.upstream_size;
+    b[n].is_null = &i.upstream_null;
+    n++;
+
+    // release_
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.release_value.data ();
+    b[n].capacity = i.release_value.capacity ();
+    b[n].size = &i.release_size;
+    b[n].is_null = &i.release_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::brep::upstream_version, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // upstream_
+    //
+    {
+      // From common.hxx:193:7
+      ::std::string const& v =
+        o.upstream;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.upstream_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.upstream_value,
+        size,
+        is_null,
+        v);
+      i.upstream_null = is_null;
+      i.upstream_size = size;
+      grew = grew || (cap != i.upstream_value.capacity ());
+    }
+
+    // release_
+    //
+    {
+      // From common.hxx:198:7
+      ::brep::optional_string const& v =
+        o.release;
+
+      bool is_null (true);
+      std::size_t size (0);
+      std::size_t cap (i.release_value.capacity ());
+      pgsql::value_traits<
+          ::brep::optional_string,
+          pgsql::id_string >::set_image (
+        i.release_value,
+        size,
+        is_null,
+        v);
+      i.release_null = is_null;
+      i.release_size = size;
+      grew = grew || (cap != i.release_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::upstream_version, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // upstream_
+    //
+    {
+      // From common.hxx:194:7
+      ::std::string v;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.upstream_value,
+        i.upstream_size,
+        i.upstream_null);
+
+      // From common.hxx:194:7
+      o = brep::version (0, std::move (v), std::string (), brep::nullopt, 0);
+    }
+
+    // release_
+    //
+    {
+      // From common.hxx:199:7
+      ::brep::optional_string v;
+
+      pgsql::value_traits<
+          ::brep::optional_string,
+          pgsql::id_string >::set_value (
+        v,
+        i.release_value,
+        i.release_size,
+        i.release_null);
+
+      // From common.hxx:199:7
+      o = brep::version (0, std::move (o.upstream), std::move (v), brep::nullopt, 0);
+    }
+  }
+
+  // package_id
+  //
+
+  bool access::composite_value_traits< ::brep::package_id, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // tenant
+    //
+    if (t[0UL])
+    {
+      i.tenant_value.capacity (i.tenant_size);
+      grew = true;
+    }
+
+    // name
+    //
+    if (t[1UL])
+    {
+      i.name_value.capacity (i.name_size);
+      grew = true;
+    }
+
+    // version
+    //
+    if (composite_value_traits< ::brep::canonical_version, id_pgsql >::grow (
+          i.version_value, t + 2UL))
+      grew = true;
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::package_id, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // tenant
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.tenant_value.data ();
+    b[n].capacity = i.tenant_value.capacity ();
+    b[n].size = &i.tenant_size;
+    b[n].is_null = &i.tenant_null;
+    n++;
+
+    // name
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.name_value.data ();
+    b[n].capacity = i.name_value.capacity ();
+    b[n].size = &i.name_size;
+    b[n].is_null = &i.name_null;
+    n++;
+
+    // version
+    //
+    composite_value_traits< ::brep::canonical_version, id_pgsql >::bind (
+      b + n, i.version_value, sk);
+    n += 4UL;
+  }
+
+  bool access::composite_value_traits< ::brep::package_id, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // tenant
+    //
+    {
+      ::std::string const& v =
+        o.tenant;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.tenant_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.tenant_value,
+        size,
+        is_null,
+        v);
+      i.tenant_null = is_null;
+      i.tenant_size = size;
+      grew = grew || (cap != i.tenant_value.capacity ());
+    }
+
+    // name
+    //
+    {
+      ::bpkg::package_name const& v =
+        o.name;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.name_value.capacity ());
+      pgsql::value_traits<
+          ::bpkg::package_name,
+          pgsql::id_string >::set_image (
+        i.name_value,
+        size,
+        is_null,
+        v);
+      i.name_null = is_null;
+      i.name_size = size;
+      grew = grew || (cap != i.name_value.capacity ());
+    }
+
+    // version
+    //
+    {
+      ::brep::canonical_version const& v =
+        o.version;
+
+      if (composite_value_traits< ::brep::canonical_version, id_pgsql >::init (
+            i.version_value,
+            v,
+            sk))
+        grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::package_id, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // tenant
+    //
+    {
+      ::std::string& v =
+        o.tenant;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.tenant_value,
+        i.tenant_size,
+        i.tenant_null);
+    }
+
+    // name
+    //
+    {
+      ::bpkg::package_name& v =
+        o.name;
+
+      pgsql::value_traits<
+          ::bpkg::package_name,
+          pgsql::id_string >::set_value (
+        v,
+        i.name_value,
+        i.name_size,
+        i.name_null);
+    }
+
+    // version
+    //
+    {
+      ::brep::canonical_version& v =
+        o.version;
+
+      composite_value_traits< ::brep::canonical_version, id_pgsql >::init (
+        v,
+        i.version_value,
+        db);
+    }
+  }
+
+  // _repository_location
+  //
+
+  bool access::composite_value_traits< ::brep::_repository_location, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // url
+    //
+    if (t[0UL])
+    {
+      i.url_value.capacity (i.url_size);
+      grew = true;
+    }
+
+    // type
+    //
+    if (t[1UL])
+    {
+      i.type_value.capacity (i.type_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::_repository_location, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // url
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.url_value.data ();
+    b[n].capacity = i.url_value.capacity ();
+    b[n].size = &i.url_size;
+    b[n].is_null = &i.url_null;
+    n++;
+
+    // type
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.type_value.data ();
+    b[n].capacity = i.type_value.capacity ();
+    b[n].size = &i.type_size;
+    b[n].is_null = &i.type_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::brep::_repository_location, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // url
+    //
+    {
+      ::bpkg::repository_url const& v =
+        o.url;
+
+      // From common.hxx:268:14
+      ::std::string const& vt =
+        (v).string ();
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.url_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.url_value,
+        size,
+        is_null,
+        vt);
+      i.url_null = is_null;
+      i.url_size = size;
+      grew = grew || (cap != i.url_value.capacity ());
+    }
+
+    // type
+    //
+    {
+      ::bpkg::repository_type const& v =
+        o.type;
+
+      // From common.hxx:260:14
+      ::std::string const& vt =
+        to_string (v);
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.type_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.type_value,
+        size,
+        is_null,
+        vt);
+      i.type_null = is_null;
+      i.type_size = size;
+      grew = grew || (cap != i.type_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::_repository_location, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // url
+    //
+    {
+      ::bpkg::repository_url& v =
+        o.url;
+
+      ::std::string vt;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        vt,
+        i.url_value,
+        i.url_size,
+        i.url_null);
+
+      // From common.hxx:268:14
+      v = (vt).empty () ? brep::repository_url () : brep::repository_url (vt);
+    }
+
+    // type
+    //
+    {
+      ::bpkg::repository_type& v =
+        o.type;
+
+      ::std::string vt;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        vt,
+        i.type_value,
+        i.type_size,
+        i.type_null);
+
+      // From common.hxx:260:14
+      v = brep::to_repository_type (vt);
+    }
+  }
+
+  // repository_id
+  //
+
+  bool access::composite_value_traits< ::brep::repository_id, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // tenant
+    //
+    if (t[0UL])
+    {
+      i.tenant_value.capacity (i.tenant_size);
+      grew = true;
+    }
+
+    // canonical_name
+    //
+    if (t[1UL])
+    {
+      i.canonical_name_value.capacity (i.canonical_name_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::repository_id, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // tenant
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.tenant_value.data ();
+    b[n].capacity = i.tenant_value.capacity ();
+    b[n].size = &i.tenant_size;
+    b[n].is_null = &i.tenant_null;
+    n++;
+
+    // canonical_name
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.canonical_name_value.data ();
+    b[n].capacity = i.canonical_name_value.capacity ();
+    b[n].size = &i.canonical_name_size;
+    b[n].is_null = &i.canonical_name_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::brep::repository_id, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // tenant
+    //
+    {
+      ::std::string const& v =
+        o.tenant;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.tenant_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.tenant_value,
+        size,
+        is_null,
+        v);
+      i.tenant_null = is_null;
+      i.tenant_size = size;
+      grew = grew || (cap != i.tenant_value.capacity ());
+    }
+
+    // canonical_name
+    //
+    {
+      ::std::string const& v =
+        o.canonical_name;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.canonical_name_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.canonical_name_value,
+        size,
+        is_null,
+        v);
+      i.canonical_name_null = is_null;
+      i.canonical_name_size = size;
+      grew = grew || (cap != i.canonical_name_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::repository_id, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // tenant
+    //
+    {
+      ::std::string& v =
+        o.tenant;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.tenant_value,
+        i.tenant_size,
+        i.tenant_null);
+    }
+
+    // canonical_name
+    //
+    {
+      ::std::string& v =
+        o.canonical_name;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.canonical_name_value,
+        i.canonical_name_size,
+        i.canonical_name_null);
+    }
+  }
+}
+
+#include <odb/post.hxx>
diff --git a/libbrep/common-odb.hxx b/libbrep/common-odb.hxx
new file mode 100644
index 0000000..1bf0aaa
--- /dev/null
+++ b/libbrep/common-odb.hxx
@@ -0,0 +1,526 @@
+// -*- C++ -*-
+//
+// This file was generated by ODB, object-relational mapping (ORM)
+// compiler for C++.
+//
+
+#ifndef LIBBREP_COMMON_ODB_HXX
+#define LIBBREP_COMMON_ODB_HXX
+
+// Begin prologue.
+//
+#include <libbutl/small-vector-odb.hxx>
+#include <libbrep/wrapper-traits.hxx>
+#include <libbrep/common-traits.hxx>
+//
+// End prologue.
+
+#include <odb/version.hxx>
+
+#if (ODB_VERSION != 20470UL)
+#error ODB runtime version mismatch
+#endif
+
+#include <odb/pre.hxx>
+
+#include <libbrep/common.hxx>
+
+#include <memory>
+#include <cstddef>
+#include <utility>
+
+#include <odb/core.hxx>
+#include <odb/traits.hxx>
+#include <odb/callback.hxx>
+#include <odb/wrapper-traits.hxx>
+#include <odb/pointer-traits.hxx>
+#include <odb/container-traits.hxx>
+#include <odb/no-op-cache-traits.hxx>
+#include <odb/result.hxx>
+
+#include <odb/details/unused.hxx>
+#include <odb/details/shared-ptr.hxx>
+
+namespace odb
+{
+}
+
+#include <odb/details/buffer.hxx>
+
+#include <odb/pgsql/version.hxx>
+#include <odb/pgsql/forward.hxx>
+#include <odb/pgsql/binding.hxx>
+#include <odb/pgsql/pgsql-types.hxx>
+#include <odb/pgsql/query.hxx>
+
+namespace odb
+{
+  // _version
+  //
+  template <>
+  class access::composite_value_traits< ::brep::_version, id_pgsql >
+  {
+    public:
+    typedef ::brep::_version value_type;
+
+    struct image_type
+    {
+      // epoch
+      //
+      int epoch_value;
+      bool epoch_null;
+
+      // canonical_upstream
+      //
+      details::buffer canonical_upstream_value;
+      std::size_t canonical_upstream_size;
+      bool canonical_upstream_null;
+
+      // canonical_release
+      //
+      details::buffer canonical_release_value;
+      std::size_t canonical_release_size;
+      bool canonical_release_null;
+
+      // revision
+      //
+      int revision_value;
+      bool revision_null;
+
+      // upstream
+      //
+      details::buffer upstream_value;
+      std::size_t upstream_size;
+      bool upstream_null;
+
+      // release
+      //
+      details::buffer release_value;
+      std::size_t release_size;
+      bool release_null;
+    };
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static bool
+    init (image_type&,
+          const value_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (value_type&,
+          const image_type&,
+          database*);
+
+    static bool
+    get_null (const image_type&);
+
+    static void
+    set_null (image_type&,
+              pgsql::statement_kind);
+
+    static const std::size_t column_count = 6UL;
+  };
+
+  // build_constraint
+  //
+  template <>
+  class access::composite_value_traits< ::bpkg::build_constraint, id_pgsql >
+  {
+    public:
+    typedef ::bpkg::build_constraint value_type;
+
+    struct image_type
+    {
+      // exclusion
+      //
+      bool exclusion_value;
+      bool exclusion_null;
+
+      // config
+      //
+      details::buffer config_value;
+      std::size_t config_size;
+      bool config_null;
+
+      // target
+      //
+      details::buffer target_value;
+      std::size_t target_size;
+      bool target_null;
+
+      // comment
+      //
+      details::buffer comment_value;
+      std::size_t comment_size;
+      bool comment_null;
+    };
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static bool
+    init (image_type&,
+          const value_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (value_type&,
+          const image_type&,
+          database*);
+
+    static bool
+    get_null (const image_type&);
+
+    static void
+    set_null (image_type&,
+              pgsql::statement_kind);
+
+    static const std::size_t column_count = 4UL;
+  };
+
+  // build_class_expr
+  //
+  template <>
+  class access::composite_value_traits< ::bpkg::build_class_expr, id_pgsql >
+  {
+    public:
+    typedef ::bpkg::build_class_expr value_type;
+
+    struct image_type
+    {
+      // expression
+      //
+      details::buffer expression_value;
+      std::size_t expression_size;
+      bool expression_null;
+
+      // comment
+      //
+      details::buffer comment_value;
+      std::size_t comment_size;
+      bool comment_null;
+    };
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static bool
+    init (image_type&,
+          const value_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (value_type&,
+          const image_type&,
+          database*);
+
+    static bool
+    get_null (const image_type&);
+
+    static void
+    set_null (image_type&,
+              pgsql::statement_kind);
+
+    static const std::size_t column_count = 2UL;
+  };
+
+  // canonical_version
+  //
+  template <>
+  class access::composite_value_traits< ::brep::canonical_version, id_pgsql >
+  {
+    public:
+    typedef ::brep::canonical_version value_type;
+
+    struct image_type
+    {
+      // epoch
+      //
+      int epoch_value;
+      bool epoch_null;
+
+      // canonical_upstream
+      //
+      details::buffer canonical_upstream_value;
+      std::size_t canonical_upstream_size;
+      bool canonical_upstream_null;
+
+      // canonical_release
+      //
+      details::buffer canonical_release_value;
+      std::size_t canonical_release_size;
+      bool canonical_release_null;
+
+      // revision
+      //
+      int revision_value;
+      bool revision_null;
+    };
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static bool
+    init (image_type&,
+          const value_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (value_type&,
+          const image_type&,
+          database*);
+
+    static bool
+    get_null (const image_type&);
+
+    static void
+    set_null (image_type&,
+              pgsql::statement_kind);
+
+    static const std::size_t column_count = 4UL;
+  };
+
+  // upstream_version
+  //
+  template <>
+  class access::composite_value_traits< ::brep::upstream_version, id_pgsql >
+  {
+    public:
+    typedef ::brep::upstream_version value_type;
+
+    struct image_type
+    {
+      // upstream_
+      //
+      details::buffer upstream_value;
+      std::size_t upstream_size;
+      bool upstream_null;
+
+      // release_
+      //
+      details::buffer release_value;
+      std::size_t release_size;
+      bool release_null;
+    };
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static bool
+    init (image_type&,
+          const value_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (value_type&,
+          const image_type&,
+          database*);
+
+    static bool
+    get_null (const image_type&);
+
+    static void
+    set_null (image_type&,
+              pgsql::statement_kind);
+
+    static const std::size_t column_count = 2UL;
+  };
+
+  // package_id
+  //
+  template <>
+  class access::composite_value_traits< ::brep::package_id, id_pgsql >
+  {
+    public:
+    typedef ::brep::package_id value_type;
+
+    struct image_type
+    {
+      // tenant
+      //
+      details::buffer tenant_value;
+      std::size_t tenant_size;
+      bool tenant_null;
+
+      // name
+      //
+      details::buffer name_value;
+      std::size_t name_size;
+      bool name_null;
+
+      // version
+      //
+      composite_value_traits< ::brep::canonical_version, id_pgsql >::image_type version_value;
+    };
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static bool
+    init (image_type&,
+          const value_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (value_type&,
+          const image_type&,
+          database*);
+
+    static bool
+    get_null (const image_type&);
+
+    static void
+    set_null (image_type&,
+              pgsql::statement_kind);
+
+    static const std::size_t column_count = 6UL;
+  };
+
+  // _repository_location
+  //
+  template <>
+  class access::composite_value_traits< ::brep::_repository_location, id_pgsql >
+  {
+    public:
+    typedef ::brep::_repository_location value_type;
+
+    struct image_type
+    {
+      // url
+      //
+      details::buffer url_value;
+      std::size_t url_size;
+      bool url_null;
+
+      // type
+      //
+      details::buffer type_value;
+      std::size_t type_size;
+      bool type_null;
+    };
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static bool
+    init (image_type&,
+          const value_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (value_type&,
+          const image_type&,
+          database*);
+
+    static bool
+    get_null (const image_type&);
+
+    static void
+    set_null (image_type&,
+              pgsql::statement_kind);
+
+    static const std::size_t column_count = 2UL;
+  };
+
+  // repository_id
+  //
+  template <>
+  class access::composite_value_traits< ::brep::repository_id, id_pgsql >
+  {
+    public:
+    typedef ::brep::repository_id value_type;
+
+    struct image_type
+    {
+      // tenant
+      //
+      details::buffer tenant_value;
+      std::size_t tenant_size;
+      bool tenant_null;
+
+      // canonical_name
+      //
+      details::buffer canonical_name_value;
+      std::size_t canonical_name_size;
+      bool canonical_name_null;
+    };
+
+    static bool
+    grow (image_type&,
+          bool*);
+
+    static void
+    bind (pgsql::bind*,
+          image_type&,
+          pgsql::statement_kind);
+
+    static bool
+    init (image_type&,
+          const value_type&,
+          pgsql::statement_kind);
+
+    static void
+    init (value_type&,
+          const image_type&,
+          database*);
+
+    static bool
+    get_null (const image_type&);
+
+    static void
+    set_null (image_type&,
+              pgsql::statement_kind);
+
+    static const std::size_t column_count = 2UL;
+  };
+}
+
+#include <libbrep/common-odb.ixx>
+
+#include <odb/post.hxx>
+
+#endif // LIBBREP_COMMON_ODB_HXX
diff --git a/libbrep/common-odb.ixx b/libbrep/common-odb.ixx
new file mode 100644
index 0000000..b8813df
--- /dev/null
+++ b/libbrep/common-odb.ixx
@@ -0,0 +1,239 @@
+// -*- C++ -*-
+//
+// This file was generated by ODB, object-relational mapping (ORM)
+// compiler for C++.
+//
+
+namespace odb
+{
+}
+
+namespace odb
+{
+  // _version
+  //
+
+  inline
+  bool access::composite_value_traits< ::brep::_version, id_pgsql >::
+  get_null (const image_type& i)
+  {
+    bool r (true);
+    r = r && i.epoch_null;
+    r = r && i.canonical_upstream_null;
+    r = r && i.canonical_release_null;
+    r = r && i.revision_null;
+    r = r && i.upstream_null;
+    r = r && i.release_null;
+    return r;
+  }
+
+  inline
+  void access::composite_value_traits< ::brep::_version, id_pgsql >::
+  set_null (image_type& i,
+            pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    i.epoch_null = true;
+    i.canonical_upstream_null = true;
+    i.canonical_release_null = true;
+    i.revision_null = true;
+    i.upstream_null = true;
+    i.release_null = true;
+  }
+
+  // build_constraint
+  //
+
+  inline
+  bool access::composite_value_traits< ::bpkg::build_constraint, id_pgsql >::
+  get_null (const image_type& i)
+  {
+    bool r (true);
+    r = r && i.exclusion_null;
+    r = r && i.config_null;
+    r = r && i.target_null;
+    r = r && i.comment_null;
+    return r;
+  }
+
+  inline
+  void access::composite_value_traits< ::bpkg::build_constraint, id_pgsql >::
+  set_null (image_type& i,
+            pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    i.exclusion_null = true;
+    i.config_null = true;
+    i.target_null = true;
+    i.comment_null = true;
+  }
+
+  // build_class_expr
+  //
+
+  inline
+  bool access::composite_value_traits< ::bpkg::build_class_expr, id_pgsql >::
+  get_null (const image_type& i)
+  {
+    bool r (true);
+    r = r && i.expression_null;
+    r = r && i.comment_null;
+    return r;
+  }
+
+  inline
+  void access::composite_value_traits< ::bpkg::build_class_expr, id_pgsql >::
+  set_null (image_type& i,
+            pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    i.expression_null = true;
+    i.comment_null = true;
+  }
+
+  // canonical_version
+  //
+
+  inline
+  bool access::composite_value_traits< ::brep::canonical_version, id_pgsql >::
+  get_null (const image_type& i)
+  {
+    bool r (true);
+    r = r && i.epoch_null;
+    r = r && i.canonical_upstream_null;
+    r = r && i.canonical_release_null;
+    r = r && i.revision_null;
+    return r;
+  }
+
+  inline
+  void access::composite_value_traits< ::brep::canonical_version, id_pgsql >::
+  set_null (image_type& i,
+            pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    i.epoch_null = true;
+    i.canonical_upstream_null = true;
+    i.canonical_release_null = true;
+    i.revision_null = true;
+  }
+
+  // upstream_version
+  //
+
+  inline
+  bool access::composite_value_traits< ::brep::upstream_version, id_pgsql >::
+  get_null (const image_type& i)
+  {
+    bool r (true);
+    r = r && i.upstream_null;
+    r = r && i.release_null;
+    return r;
+  }
+
+  inline
+  void access::composite_value_traits< ::brep::upstream_version, id_pgsql >::
+  set_null (image_type& i,
+            pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    i.upstream_null = true;
+    i.release_null = true;
+  }
+
+  // package_id
+  //
+
+  inline
+  bool access::composite_value_traits< ::brep::package_id, id_pgsql >::
+  get_null (const image_type& i)
+  {
+    bool r (true);
+    r = r && i.tenant_null;
+    r = r && i.name_null;
+    r = r && composite_value_traits< ::brep::canonical_version, id_pgsql >::get_null (i.version_value);
+    return r;
+  }
+
+  inline
+  void access::composite_value_traits< ::brep::package_id, id_pgsql >::
+  set_null (image_type& i,
+            pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    i.tenant_null = true;
+    i.name_null = true;
+    composite_value_traits< ::brep::canonical_version, id_pgsql >::set_null (i.version_value, sk);
+  }
+
+  // _repository_location
+  //
+
+  inline
+  bool access::composite_value_traits< ::brep::_repository_location, id_pgsql >::
+  get_null (const image_type& i)
+  {
+    bool r (true);
+    r = r && i.url_null;
+    r = r && i.type_null;
+    return r;
+  }
+
+  inline
+  void access::composite_value_traits< ::brep::_repository_location, id_pgsql >::
+  set_null (image_type& i,
+            pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    i.url_null = true;
+    i.type_null = true;
+  }
+
+  // repository_id
+  //
+
+  inline
+  bool access::composite_value_traits< ::brep::repository_id, id_pgsql >::
+  get_null (const image_type& i)
+  {
+    bool r (true);
+    r = r && i.tenant_null;
+    r = r && i.canonical_name_null;
+    return r;
+  }
+
+  inline
+  void access::composite_value_traits< ::brep::repository_id, id_pgsql >::
+  set_null (image_type& i,
+            pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    i.tenant_null = true;
+    i.canonical_name_null = true;
+  }
+}
+
diff --git a/libbrep/package-extra.hxx b/libbrep/package-extra.hxx
new file mode 100644
index 0000000..698cc75
--- /dev/null
+++ b/libbrep/package-extra.hxx
@@ -0,0 +1,541 @@
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+  0x54, 0x55, 0x52, 0x4e, 0x53, 0x20, 0x74, 0x73, 0x76, 0x65, 0x63, 0x74,
+  0x6f, 0x72, 0x20, 0x41, 0x53, 0x20, 0x24, 0x24, 0x0a, 0x20, 0x20, 0x53,
+  0x45, 0x4c, 0x45, 0x43, 0x54, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x43, 0x41,
+  0x53, 0x45, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x57, 0x48, 0x45,
+  0x4e, 0x20, 0x64, 0x6f, 0x63, 0x75, 0x6d, 0x65, 0x6e, 0x74, 0x20, 0x49,
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+  0x4c, 0x53, 0x45, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+  0x73, 0x65, 0x74, 0x77, 0x65, 0x69, 0x67, 0x68, 0x74, 0x28, 0x74, 0x6f,
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+  0x41, 0x27, 0x29, 0x20, 0x7c, 0x7c, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20,
+  0x20, 0x20, 0x20, 0x73, 0x65, 0x74, 0x77, 0x65, 0x69, 0x67, 0x68, 0x74,
+  0x28, 0x74, 0x6f, 0x5f, 0x74, 0x73, 0x76, 0x65, 0x63, 0x74, 0x6f, 0x72,
+  0x28, 0x64, 0x6f, 0x63, 0x75, 0x6d, 0x65, 0x6e, 0x74, 0x2e, 0x62, 0x29,
+  0x2c, 0x20, 0x27, 0x42, 0x27, 0x29, 0x20, 0x7c, 0x7c, 0x0a, 0x20, 0x20,
+  0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x73, 0x65, 0x74, 0x77, 0x65, 0x69,
+  0x67, 0x68, 0x74, 0x28, 0x74, 0x6f, 0x5f, 0x74, 0x73, 0x76, 0x65, 0x63,
+  0x74, 0x6f, 0x72, 0x28, 0x64, 0x6f, 0x63, 0x75, 0x6d, 0x65, 0x6e, 0x74,
+  0x2e, 0x63, 0x29, 0x2c, 0x20, 0x27, 0x43, 0x27, 0x29, 0x20, 0x7c, 0x7c,
+  0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x73, 0x65, 0x74,
+  0x77, 0x65, 0x69, 0x67, 0x68, 0x74, 0x28, 0x74, 0x6f, 0x5f, 0x74, 0x73,
+  0x76, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x28, 0x64, 0x6f, 0x63, 0x75, 0x6d,
+  0x65, 0x6e, 0x74, 0x2e, 0x64, 0x29, 0x2c, 0x20, 0x27, 0x44, 0x27, 0x29,
+  0x0a, 0x20, 0x20, 0x20, 0x20, 0x45, 0x4e, 0x44, 0x0a, 0x24, 0x24, 0x20,
+  0x4c, 0x41, 0x4e, 0x47, 0x55, 0x41, 0x47, 0x45, 0x20, 0x53, 0x51, 0x4c,
+  0x20, 0x49, 0x4d, 0x4d, 0x55, 0x54, 0x41, 0x42, 0x4c, 0x45, 0x3b, 0x0a
diff --git a/libbrep/package-odb.cxx b/libbrep/package-odb.cxx
new file mode 100644
index 0000000..a75d5af
--- /dev/null
+++ b/libbrep/package-odb.cxx
@@ -0,0 +1,14202 @@
+// -*- C++ -*-
+//
+// This file was generated by ODB, object-relational mapping (ORM)
+// compiler for C++.
+//
+
+#include <odb/pre.hxx>
+
+#include <libbrep/package-odb.hxx>
+
+#include <cassert>
+#include <cstring>  // std::memcpy
+
+#include <odb/schema-catalog-impl.hxx>
+
+#include <odb/pgsql/traits.hxx>
+#include <odb/pgsql/database.hxx>
+#include <odb/pgsql/transaction.hxx>
+#include <odb/pgsql/connection.hxx>
+#include <odb/pgsql/statement.hxx>
+#include <odb/pgsql/statement-cache.hxx>
+#include <odb/pgsql/simple-object-statements.hxx>
+#include <odb/pgsql/view-statements.hxx>
+#include <odb/pgsql/section-statements.hxx>
+#include <odb/pgsql/container-statements.hxx>
+#include <odb/pgsql/exceptions.hxx>
+#include <odb/pgsql/prepared-query.hxx>
+#include <odb/pgsql/simple-object-result.hxx>
+#include <odb/pgsql/view-result.hxx>
+
+namespace odb
+{
+  // priority
+  //
+
+  bool access::composite_value_traits< ::bpkg::priority, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // value
+    //
+    t[0UL] = 0;
+
+    // comment
+    //
+    if (t[1UL])
+    {
+      i.comment_value.capacity (i.comment_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::priority, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // value
+    //
+    b[n].type = pgsql::bind::integer;
+    b[n].buffer = &i.value_value;
+    b[n].is_null = &i.value_null;
+    n++;
+
+    // comment
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.comment_value.data ();
+    b[n].capacity = i.comment_value.capacity ();
+    b[n].size = &i.comment_size;
+    b[n].is_null = &i.comment_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::bpkg::priority, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // value
+    //
+    {
+      ::bpkg::priority::value_type const& v =
+        o.value;
+
+      bool is_null (false);
+      pgsql::value_traits<
+          ::bpkg::priority::value_type,
+          pgsql::id_integer >::set_image (
+        i.value_value, is_null, v);
+      i.value_null = is_null;
+    }
+
+    // comment
+    //
+    {
+      ::std::string const& v =
+        o.comment;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.comment_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.comment_value,
+        size,
+        is_null,
+        v);
+      i.comment_null = is_null;
+      i.comment_size = size;
+      grew = grew || (cap != i.comment_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::priority, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // value
+    //
+    {
+      ::bpkg::priority::value_type& v =
+        o.value;
+
+      pgsql::value_traits<
+          ::bpkg::priority::value_type,
+          pgsql::id_integer >::set_value (
+        v,
+        i.value_value,
+        i.value_null);
+    }
+
+    // comment
+    //
+    {
+      ::std::string& v =
+        o.comment;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.comment_value,
+        i.comment_size,
+        i.comment_null);
+    }
+  }
+
+  // licenses
+  //
+
+  bool access::composite_value_traits< ::bpkg::licenses, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // comment
+    //
+    if (t[0UL])
+    {
+      i.comment_value.capacity (i.comment_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::licenses, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // comment
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.comment_value.data ();
+    b[n].capacity = i.comment_value.capacity ();
+    b[n].size = &i.comment_size;
+    b[n].is_null = &i.comment_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::bpkg::licenses, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // comment
+    //
+    {
+      ::std::string const& v =
+        o.comment;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.comment_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.comment_value,
+        size,
+        is_null,
+        v);
+      i.comment_null = is_null;
+      i.comment_size = size;
+      grew = grew || (cap != i.comment_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::licenses, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // comment
+    //
+    {
+      ::std::string& v =
+        o.comment;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.comment_value,
+        i.comment_size,
+        i.comment_null);
+    }
+  }
+
+  // manifest_url
+  //
+
+  bool access::composite_value_traits< ::bpkg::manifest_url, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // value
+    //
+    if (t[0UL])
+    {
+      i.value_value.capacity (i.value_size);
+      grew = true;
+    }
+
+    // comment
+    //
+    if (t[1UL])
+    {
+      i.comment_value.capacity (i.comment_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::manifest_url, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // value
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.value_value.data ();
+    b[n].capacity = i.value_value.capacity ();
+    b[n].size = &i.value_size;
+    b[n].is_null = &i.value_null;
+    n++;
+
+    // comment
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.comment_value.data ();
+    b[n].capacity = i.comment_value.capacity ();
+    b[n].size = &i.comment_size;
+    b[n].is_null = &i.comment_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::bpkg::manifest_url, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // value
+    //
+    {
+      // From package.hxx:68:5
+      ::std::string const& v =
+        o.string ();
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.value_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.value_value,
+        size,
+        is_null,
+        v);
+      i.value_null = is_null;
+      i.value_size = size;
+      grew = grew || (cap != i.value_value.capacity ());
+    }
+
+    // comment
+    //
+    {
+      ::std::string const& v =
+        o.comment;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.comment_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.comment_value,
+        size,
+        is_null,
+        v);
+      i.comment_null = is_null;
+      i.comment_size = size;
+      grew = grew || (cap != i.comment_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::manifest_url, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // value
+    //
+    {
+      // From package.hxx:69:5
+      ::std::string v;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.value_value,
+        i.value_size,
+        i.value_null);
+
+      // From package.hxx:69:5
+      o = brep::manifest_url ((v), "");
+    }
+
+    // comment
+    //
+    {
+      ::std::string& v =
+        o.comment;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.comment_value,
+        i.comment_size,
+        i.comment_null);
+    }
+  }
+
+  // email
+  //
+
+  bool access::composite_value_traits< ::bpkg::email, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // value
+    //
+    if (t[0UL])
+    {
+      i.value_value.capacity (i.value_size);
+      grew = true;
+    }
+
+    // comment
+    //
+    if (t[1UL])
+    {
+      i.comment_value.capacity (i.comment_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::email, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // value
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.value_value.data ();
+    b[n].capacity = i.value_value.capacity ();
+    b[n].size = &i.value_size;
+    b[n].is_null = &i.value_null;
+    n++;
+
+    // comment
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.comment_value.data ();
+    b[n].capacity = i.comment_value.capacity ();
+    b[n].size = &i.comment_size;
+    b[n].is_null = &i.comment_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::bpkg::email, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // value
+    //
+    {
+      // From package.hxx:77:58
+      ::std::string const& v =
+        o;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.value_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.value_value,
+        size,
+        is_null,
+        v);
+      i.value_null = is_null;
+      i.value_size = size;
+      grew = grew || (cap != i.value_value.capacity ());
+    }
+
+    // comment
+    //
+    {
+      ::std::string const& v =
+        o.comment;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.comment_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.comment_value,
+        size,
+        is_null,
+        v);
+      i.comment_null = is_null;
+      i.comment_size = size;
+      grew = grew || (cap != i.comment_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::email, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // value
+    //
+    {
+      // From package.hxx:77:58
+      ::std::string& v =
+        o;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.value_value,
+        i.value_size,
+        i.value_null);
+    }
+
+    // comment
+    //
+    {
+      ::std::string& v =
+        o.comment;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.comment_value,
+        i.comment_size,
+        i.comment_null);
+    }
+  }
+
+  // version_constraint
+  //
+
+  bool access::composite_value_traits< ::bpkg::version_constraint, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // min_version
+    //
+    if (composite_value_traits< ::brep::_version, id_pgsql >::grow (
+          i.min_version_value, t + 0UL))
+      grew = true;
+
+    // max_version
+    //
+    if (composite_value_traits< ::brep::_version, id_pgsql >::grow (
+          i.max_version_value, t + 6UL))
+      grew = true;
+
+    // min_open
+    //
+    t[12UL] = 0;
+
+    // max_open
+    //
+    t[13UL] = 0;
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::version_constraint, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // min_version
+    //
+    composite_value_traits< ::brep::_version, id_pgsql >::bind (
+      b + n, i.min_version_value, sk);
+    n += 6UL;
+
+    // max_version
+    //
+    composite_value_traits< ::brep::_version, id_pgsql >::bind (
+      b + n, i.max_version_value, sk);
+    n += 6UL;
+
+    // min_open
+    //
+    b[n].type = pgsql::bind::boolean_;
+    b[n].buffer = &i.min_open_value;
+    b[n].is_null = &i.min_open_null;
+    n++;
+
+    // max_open
+    //
+    b[n].type = pgsql::bind::boolean_;
+    b[n].buffer = &i.max_open_value;
+    b[n].is_null = &i.max_open_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::bpkg::version_constraint, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // min_version
+    //
+    {
+      ::butl::optional< ::bpkg::version > const& v =
+        o.min_version;
+
+      // From common.hxx:75:12
+      ::brep::_optional_version const& vt =
+        (v) ? brep::_version 
+      {
+         (v)->epoch, (v)->canonical_upstream, (v)->canonical_release, (v)->revision, (v)->upstream, (v)->release 
+      } : brep::_optional_version ();
+
+      if (wrapper_traits< ::brep::_optional_version >::get_null (vt))
+        composite_value_traits< ::brep::_version, id_pgsql >::set_null (
+          i.min_version_value, sk);
+      else
+      {
+        const::brep::_version& vw = 
+          wrapper_traits< ::brep::_optional_version >::get_ref (vt);
+
+        if (composite_value_traits< ::brep::_version, id_pgsql >::init (
+              i.min_version_value,
+              vw,
+              sk))
+          grew = true;
+      }
+    }
+
+    // max_version
+    //
+    {
+      ::butl::optional< ::bpkg::version > const& v =
+        o.max_version;
+
+      // From common.hxx:75:12
+      ::brep::_optional_version const& vt =
+        (v) ? brep::_version 
+      {
+         (v)->epoch, (v)->canonical_upstream, (v)->canonical_release, (v)->revision, (v)->upstream, (v)->release 
+      } : brep::_optional_version ();
+
+      if (wrapper_traits< ::brep::_optional_version >::get_null (vt))
+        composite_value_traits< ::brep::_version, id_pgsql >::set_null (
+          i.max_version_value, sk);
+      else
+      {
+        const::brep::_version& vw = 
+          wrapper_traits< ::brep::_optional_version >::get_ref (vt);
+
+        if (composite_value_traits< ::brep::_version, id_pgsql >::init (
+              i.max_version_value,
+              vw,
+              sk))
+          grew = true;
+      }
+    }
+
+    // min_open
+    //
+    {
+      bool const& v =
+        o.min_open;
+
+      bool is_null (false);
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_image (
+        i.min_open_value, is_null, v);
+      i.min_open_null = is_null;
+    }
+
+    // max_open
+    //
+    {
+      bool const& v =
+        o.max_open;
+
+      bool is_null (false);
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_image (
+        i.max_open_value, is_null, v);
+      i.max_open_null = is_null;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::version_constraint, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // min_version
+    //
+    {
+      ::butl::optional< ::bpkg::version >& v =
+        o.min_version;
+
+      ::brep::_optional_version vt;
+
+      if (composite_value_traits< ::brep::_version, id_pgsql >::get_null (
+            i.min_version_value))
+        wrapper_traits< ::brep::_optional_version >::set_null (vt);
+      else
+      {
+        ::brep::_version& vw =
+          wrapper_traits< ::brep::_optional_version >::set_ref (vt);
+
+        composite_value_traits< ::brep::_version, id_pgsql >::init (
+          vw,
+          i.min_version_value,
+          db);
+      }
+
+      // From common.hxx:75:12
+      v = (vt) ? bpkg::version ((vt)->epoch, std::move ((vt)->upstream), std::move ((vt)->release), (vt)->revision, 0) : brep::optional_version ();
+    }
+
+    // max_version
+    //
+    {
+      ::butl::optional< ::bpkg::version >& v =
+        o.max_version;
+
+      ::brep::_optional_version vt;
+
+      if (composite_value_traits< ::brep::_version, id_pgsql >::get_null (
+            i.max_version_value))
+        wrapper_traits< ::brep::_optional_version >::set_null (vt);
+      else
+      {
+        ::brep::_version& vw =
+          wrapper_traits< ::brep::_optional_version >::set_ref (vt);
+
+        composite_value_traits< ::brep::_version, id_pgsql >::init (
+          vw,
+          i.max_version_value,
+          db);
+      }
+
+      // From common.hxx:75:12
+      v = (vt) ? bpkg::version ((vt)->epoch, std::move ((vt)->upstream), std::move ((vt)->release), (vt)->revision, 0) : brep::optional_version ();
+    }
+
+    // min_open
+    //
+    {
+      bool& v =
+        o.min_open;
+
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_value (
+        v,
+        i.min_open_value,
+        i.min_open_null);
+    }
+
+    // max_open
+    //
+    {
+      bool& v =
+        o.max_open;
+
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_value (
+        v,
+        i.max_open_value,
+        i.max_open_null);
+    }
+  }
+
+  // requirement_alternatives
+  //
+
+  bool access::composite_value_traits< ::bpkg::requirement_alternatives, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // conditional
+    //
+    t[0UL] = 0;
+
+    // buildtime
+    //
+    t[1UL] = 0;
+
+    // comment
+    //
+    if (t[2UL])
+    {
+      i.comment_value.capacity (i.comment_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::requirement_alternatives, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // conditional
+    //
+    b[n].type = pgsql::bind::boolean_;
+    b[n].buffer = &i.conditional_value;
+    b[n].is_null = &i.conditional_null;
+    n++;
+
+    // buildtime
+    //
+    b[n].type = pgsql::bind::boolean_;
+    b[n].buffer = &i.buildtime_value;
+    b[n].is_null = &i.buildtime_null;
+    n++;
+
+    // comment
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.comment_value.data ();
+    b[n].capacity = i.comment_value.capacity ();
+    b[n].size = &i.comment_size;
+    b[n].is_null = &i.comment_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::bpkg::requirement_alternatives, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // conditional
+    //
+    {
+      bool const& v =
+        o.conditional;
+
+      bool is_null (false);
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_image (
+        i.conditional_value, is_null, v);
+      i.conditional_null = is_null;
+    }
+
+    // buildtime
+    //
+    {
+      bool const& v =
+        o.buildtime;
+
+      bool is_null (false);
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_image (
+        i.buildtime_value, is_null, v);
+      i.buildtime_null = is_null;
+    }
+
+    // comment
+    //
+    {
+      ::std::string const& v =
+        o.comment;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.comment_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.comment_value,
+        size,
+        is_null,
+        v);
+      i.comment_null = is_null;
+      i.comment_size = size;
+      grew = grew || (cap != i.comment_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::bpkg::requirement_alternatives, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // conditional
+    //
+    {
+      bool& v =
+        o.conditional;
+
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_value (
+        v,
+        i.conditional_value,
+        i.conditional_null);
+    }
+
+    // buildtime
+    //
+    {
+      bool& v =
+        o.buildtime;
+
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_value (
+        v,
+        i.buildtime_value,
+        i.buildtime_null);
+    }
+
+    // comment
+    //
+    {
+      ::std::string& v =
+        o.comment;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.comment_value,
+        i.comment_size,
+        i.comment_null);
+    }
+  }
+
+  // dependency
+  //
+
+  bool access::composite_value_traits< ::brep::dependency, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // name
+    //
+    if (t[0UL])
+    {
+      i.name_value.capacity (i.name_size);
+      grew = true;
+    }
+
+    // constraint
+    //
+    if (composite_value_traits< ::bpkg::version_constraint, id_pgsql >::grow (
+          i.constraint_value, t + 1UL))
+      grew = true;
+
+    // package
+    //
+    if (composite_value_traits< ::brep::package_id, id_pgsql >::grow (
+          i.package_value, t + 15UL))
+      grew = true;
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::dependency, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // name
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.name_value.data ();
+    b[n].capacity = i.name_value.capacity ();
+    b[n].size = &i.name_size;
+    b[n].is_null = &i.name_null;
+    n++;
+
+    // constraint
+    //
+    composite_value_traits< ::bpkg::version_constraint, id_pgsql >::bind (
+      b + n, i.constraint_value, sk);
+    n += 14UL;
+
+    // package
+    //
+    composite_value_traits< ::brep::package_id, id_pgsql >::bind (
+      b + n, i.package_value, sk);
+    n += 6UL;
+  }
+
+  bool access::composite_value_traits< ::brep::dependency, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // name
+    //
+    {
+      ::bpkg::package_name const& v =
+        o.name;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.name_value.capacity ());
+      pgsql::value_traits<
+          ::bpkg::package_name,
+          pgsql::id_string >::set_image (
+        i.name_value,
+        size,
+        is_null,
+        v);
+      i.name_null = is_null;
+      i.name_size = size;
+      grew = grew || (cap != i.name_value.capacity ());
+    }
+
+    // constraint
+    //
+    {
+      ::butl::optional< ::bpkg::version_constraint > const& v =
+        o.constraint;
+
+      if (wrapper_traits< ::butl::optional< ::bpkg::version_constraint > >::get_null (v))
+        composite_value_traits< ::bpkg::version_constraint, id_pgsql >::set_null (
+          i.constraint_value, sk);
+      else
+      {
+        const::bpkg::version_constraint& vw = 
+          wrapper_traits< ::butl::optional< ::bpkg::version_constraint > >::get_ref (v);
+
+        if (composite_value_traits< ::bpkg::version_constraint, id_pgsql >::init (
+              i.constraint_value,
+              vw,
+              sk))
+          grew = true;
+      }
+    }
+
+    // package
+    //
+    {
+      ::odb::lazy_shared_ptr< ::brep::package > const& v =
+        o.package;
+
+      typedef object_traits< ::brep::package > obj_traits;
+      typedef odb::pointer_traits< ::odb::lazy_shared_ptr< ::brep::package > > ptr_traits;
+
+      bool is_null (ptr_traits::null_ptr (v));
+      if (!is_null)
+      {
+        const obj_traits::id_type& ptr_id (
+          ptr_traits::object_id< ptr_traits::element_type  > (v));
+
+        if (composite_value_traits< obj_traits::id_type, id_pgsql >::init (
+              i.package_value,
+              ptr_id,
+              sk))
+          grew = true;
+      }
+      else
+        composite_value_traits< obj_traits::id_type, id_pgsql >::set_null (i.package_value, sk);
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::dependency, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // name
+    //
+    {
+      ::bpkg::package_name& v =
+        o.name;
+
+      pgsql::value_traits<
+          ::bpkg::package_name,
+          pgsql::id_string >::set_value (
+        v,
+        i.name_value,
+        i.name_size,
+        i.name_null);
+    }
+
+    // constraint
+    //
+    {
+      ::butl::optional< ::bpkg::version_constraint >& v =
+        o.constraint;
+
+      if (composite_value_traits< ::bpkg::version_constraint, id_pgsql >::get_null (
+            i.constraint_value))
+        wrapper_traits< ::butl::optional< ::bpkg::version_constraint > >::set_null (v);
+      else
+      {
+        ::bpkg::version_constraint& vw =
+          wrapper_traits< ::butl::optional< ::bpkg::version_constraint > >::set_ref (v);
+
+        composite_value_traits< ::bpkg::version_constraint, id_pgsql >::init (
+          vw,
+          i.constraint_value,
+          db);
+      }
+    }
+
+    // package
+    //
+    {
+      ::odb::lazy_shared_ptr< ::brep::package >& v =
+        o.package;
+
+      typedef object_traits< ::brep::package > obj_traits;
+      typedef odb::pointer_traits< ::odb::lazy_shared_ptr< ::brep::package > > ptr_traits;
+
+      if (composite_value_traits< obj_traits::id_type, id_pgsql >::get_null (
+            i.package_value))
+        v = ptr_traits::pointer_type ();
+      else
+      {
+        obj_traits::id_type ptr_id;
+        composite_value_traits< obj_traits::id_type, id_pgsql >::init (
+          ptr_id,
+          i.package_value,
+          db);
+
+        v = ptr_traits::pointer_type (
+          *static_cast<pgsql::database*> (db), ptr_id);
+      }
+    }
+  }
+
+  // dependency_alternatives
+  //
+
+  bool access::composite_value_traits< ::brep::dependency_alternatives, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // conditional
+    //
+    t[0UL] = 0;
+
+    // buildtime
+    //
+    t[1UL] = 0;
+
+    // comment
+    //
+    if (t[2UL])
+    {
+      i.comment_value.capacity (i.comment_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::dependency_alternatives, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // conditional
+    //
+    b[n].type = pgsql::bind::boolean_;
+    b[n].buffer = &i.conditional_value;
+    b[n].is_null = &i.conditional_null;
+    n++;
+
+    // buildtime
+    //
+    b[n].type = pgsql::bind::boolean_;
+    b[n].buffer = &i.buildtime_value;
+    b[n].is_null = &i.buildtime_null;
+    n++;
+
+    // comment
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.comment_value.data ();
+    b[n].capacity = i.comment_value.capacity ();
+    b[n].size = &i.comment_size;
+    b[n].is_null = &i.comment_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::brep::dependency_alternatives, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // conditional
+    //
+    {
+      bool const& v =
+        o.conditional;
+
+      bool is_null (false);
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_image (
+        i.conditional_value, is_null, v);
+      i.conditional_null = is_null;
+    }
+
+    // buildtime
+    //
+    {
+      bool const& v =
+        o.buildtime;
+
+      bool is_null (false);
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_image (
+        i.buildtime_value, is_null, v);
+      i.buildtime_null = is_null;
+    }
+
+    // comment
+    //
+    {
+      ::std::string const& v =
+        o.comment;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.comment_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.comment_value,
+        size,
+        is_null,
+        v);
+      i.comment_null = is_null;
+      i.comment_size = size;
+      grew = grew || (cap != i.comment_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::dependency_alternatives, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // conditional
+    //
+    {
+      bool& v =
+        o.conditional;
+
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_value (
+        v,
+        i.conditional_value,
+        i.conditional_null);
+    }
+
+    // buildtime
+    //
+    {
+      bool& v =
+        o.buildtime;
+
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_value (
+        v,
+        i.buildtime_value,
+        i.buildtime_null);
+    }
+
+    // comment
+    //
+    {
+      ::std::string& v =
+        o.comment;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.comment_value,
+        i.comment_size,
+        i.comment_null);
+    }
+  }
+
+  // test_dependency
+  //
+
+  bool access::composite_value_traits< ::brep::test_dependency, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // dependency base
+    //
+    if (composite_value_traits< ::brep::dependency, id_pgsql >::grow (
+          i, t + 0UL))
+      grew = true;
+
+    // type
+    //
+    if (t[21UL])
+    {
+      i.type_value.capacity (i.type_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::test_dependency, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // dependency base
+    //
+    composite_value_traits< ::brep::dependency, id_pgsql >::bind (b + n, i, sk);
+    n += 21UL;
+
+    // type
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.type_value.data ();
+    b[n].capacity = i.type_value.capacity ();
+    b[n].size = &i.type_size;
+    b[n].is_null = &i.type_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::brep::test_dependency, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // dependency base
+    //
+    if (composite_value_traits< ::brep::dependency, id_pgsql >::init (i, o, sk))
+      grew = true;
+
+    // type
+    //
+    {
+      ::bpkg::test_dependency_type const& v =
+        o.type;
+
+      // From package.hxx:189:14
+      ::std::string const& vt =
+        to_string (v);
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.type_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.type_value,
+        size,
+        is_null,
+        vt);
+      i.type_null = is_null;
+      i.type_size = size;
+      grew = grew || (cap != i.type_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::test_dependency, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // dependency base
+    //
+    composite_value_traits< ::brep::dependency, id_pgsql >::init (o, i, db);
+
+    // type
+    //
+    {
+      ::bpkg::test_dependency_type& v =
+        o.type;
+
+      ::std::string vt;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        vt,
+        i.type_value,
+        i.type_size,
+        i.type_null);
+
+      // From package.hxx:189:14
+      v = brep::to_test_dependency_type (vt);
+    }
+  }
+
+  // certificate
+  //
+
+  bool access::composite_value_traits< ::brep::certificate, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // fingerprint
+    //
+    if (t[0UL])
+    {
+      i.fingerprint_value.capacity (i.fingerprint_size);
+      grew = true;
+    }
+
+    // name
+    //
+    if (t[1UL])
+    {
+      i.name_value.capacity (i.name_size);
+      grew = true;
+    }
+
+    // organization
+    //
+    if (t[2UL])
+    {
+      i.organization_value.capacity (i.organization_size);
+      grew = true;
+    }
+
+    // email
+    //
+    if (t[3UL])
+    {
+      i.email_value.capacity (i.email_size);
+      grew = true;
+    }
+
+    // pem
+    //
+    if (t[4UL])
+    {
+      i.pem_value.capacity (i.pem_size);
+      grew = true;
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::certificate, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (b);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+    ODB_POTENTIALLY_UNUSED (n);
+
+    // fingerprint
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.fingerprint_value.data ();
+    b[n].capacity = i.fingerprint_value.capacity ();
+    b[n].size = &i.fingerprint_size;
+    b[n].is_null = &i.fingerprint_null;
+    n++;
+
+    // name
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.name_value.data ();
+    b[n].capacity = i.name_value.capacity ();
+    b[n].size = &i.name_size;
+    b[n].is_null = &i.name_null;
+    n++;
+
+    // organization
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.organization_value.data ();
+    b[n].capacity = i.organization_value.capacity ();
+    b[n].size = &i.organization_size;
+    b[n].is_null = &i.organization_null;
+    n++;
+
+    // email
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.email_value.data ();
+    b[n].capacity = i.email_value.capacity ();
+    b[n].size = &i.email_size;
+    b[n].is_null = &i.email_null;
+    n++;
+
+    // pem
+    //
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.pem_value.data ();
+    b[n].capacity = i.pem_value.capacity ();
+    b[n].size = &i.pem_size;
+    b[n].is_null = &i.pem_null;
+    n++;
+  }
+
+  bool access::composite_value_traits< ::brep::certificate, id_pgsql >::
+  init (image_type& i,
+        const value_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // fingerprint
+    //
+    {
+      ::std::string const& v =
+        o.fingerprint;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.fingerprint_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.fingerprint_value,
+        size,
+        is_null,
+        v);
+      i.fingerprint_null = is_null;
+      i.fingerprint_size = size;
+      grew = grew || (cap != i.fingerprint_value.capacity ());
+    }
+
+    // name
+    //
+    {
+      ::std::string const& v =
+        o.name;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.name_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.name_value,
+        size,
+        is_null,
+        v);
+      i.name_null = is_null;
+      i.name_size = size;
+      grew = grew || (cap != i.name_value.capacity ());
+    }
+
+    // organization
+    //
+    {
+      ::std::string const& v =
+        o.organization;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.organization_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.organization_value,
+        size,
+        is_null,
+        v);
+      i.organization_null = is_null;
+      i.organization_size = size;
+      grew = grew || (cap != i.organization_value.capacity ());
+    }
+
+    // email
+    //
+    {
+      ::std::string const& v =
+        o.email;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.email_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.email_value,
+        size,
+        is_null,
+        v);
+      i.email_null = is_null;
+      i.email_size = size;
+      grew = grew || (cap != i.email_value.capacity ());
+    }
+
+    // pem
+    //
+    {
+      ::std::string const& v =
+        o.pem;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.pem_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.pem_value,
+        size,
+        is_null,
+        v);
+      i.pem_null = is_null;
+      i.pem_size = size;
+      grew = grew || (cap != i.pem_value.capacity ());
+    }
+
+    return grew;
+  }
+
+  void access::composite_value_traits< ::brep::certificate, id_pgsql >::
+  init (value_type& o,
+        const image_type&  i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // fingerprint
+    //
+    {
+      ::std::string& v =
+        o.fingerprint;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.fingerprint_value,
+        i.fingerprint_size,
+        i.fingerprint_null);
+    }
+
+    // name
+    //
+    {
+      ::std::string& v =
+        o.name;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.name_value,
+        i.name_size,
+        i.name_null);
+    }
+
+    // organization
+    //
+    {
+      ::std::string& v =
+        o.organization;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.organization_value,
+        i.organization_size,
+        i.organization_null);
+    }
+
+    // email
+    //
+    {
+      ::std::string& v =
+        o.email;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.email_value,
+        i.email_size,
+        i.email_null);
+    }
+
+    // pem
+    //
+    {
+      ::std::string& v =
+        o.pem;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.pem_value,
+        i.pem_size,
+        i.pem_null);
+    }
+  }
+
+  // tenant
+  //
+
+  const char access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  persist_statement_name[] = "persist_brep_tenant";
+
+  const char access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  find_statement_name[] = "find_brep_tenant";
+
+  const char access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  update_statement_name[] = "update_brep_tenant";
+
+  const char access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  erase_statement_name[] = "erase_brep_tenant";
+
+  const char access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  query_statement_name[] = "query_brep_tenant";
+
+  const char access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  erase_query_statement_name[] = "erase_query_brep_tenant";
+
+  const unsigned int access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  persist_statement_types[] =
+  {
+    pgsql::text_oid,
+    pgsql::int8_oid,
+    pgsql::bool_oid
+  };
+
+  const unsigned int access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  find_statement_types[] =
+  {
+    pgsql::text_oid
+  };
+
+  const unsigned int access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  update_statement_types[] =
+  {
+    pgsql::int8_oid,
+    pgsql::bool_oid,
+    pgsql::text_oid
+  };
+
+  struct access::object_traits_impl< ::brep::tenant, id_pgsql >::extra_statement_cache_type
+  {
+    extra_statement_cache_type (
+      pgsql::connection&,
+      image_type&,
+      id_image_type&,
+      pgsql::binding&,
+      pgsql::binding&,
+      pgsql::native_binding&,
+      const unsigned int*)
+    {
+    }
+  };
+
+  access::object_traits_impl< ::brep::tenant, id_pgsql >::id_type
+  access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  id (const image_type& i)
+  {
+    pgsql::database* db (0);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    id_type id;
+    {
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        id,
+        i.id_value,
+        i.id_size,
+        i.id_null);
+    }
+
+    return id;
+  }
+
+  bool access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  grow (image_type& i,
+        bool* t)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (t);
+
+    bool grew (false);
+
+    // id
+    //
+    if (t[0UL])
+    {
+      i.id_value.capacity (i.id_size);
+      grew = true;
+    }
+
+    // creation_timestamp
+    //
+    t[1UL] = 0;
+
+    // archived
+    //
+    t[2UL] = 0;
+
+    return grew;
+  }
+
+  void access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  bind (pgsql::bind* b,
+        image_type& i,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    std::size_t n (0);
+
+    // id
+    //
+    if (sk != statement_update)
+    {
+      b[n].type = pgsql::bind::text;
+      b[n].buffer = i.id_value.data ();
+      b[n].capacity = i.id_value.capacity ();
+      b[n].size = &i.id_size;
+      b[n].is_null = &i.id_null;
+      n++;
+    }
+
+    // creation_timestamp
+    //
+    b[n].type = pgsql::bind::bigint;
+    b[n].buffer = &i.creation_timestamp_value;
+    b[n].is_null = &i.creation_timestamp_null;
+    n++;
+
+    // archived
+    //
+    b[n].type = pgsql::bind::boolean_;
+    b[n].buffer = &i.archived_value;
+    b[n].is_null = &i.archived_null;
+    n++;
+  }
+
+  void access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  bind (pgsql::bind* b, id_image_type& i)
+  {
+    std::size_t n (0);
+    b[n].type = pgsql::bind::text;
+    b[n].buffer = i.id_value.data ();
+    b[n].capacity = i.id_value.capacity ();
+    b[n].size = &i.id_size;
+    b[n].is_null = &i.id_null;
+  }
+
+  bool access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  init (image_type& i,
+        const object_type& o,
+        pgsql::statement_kind sk)
+  {
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (sk);
+
+    using namespace pgsql;
+
+    bool grew (false);
+
+    // id
+    //
+    if (sk == statement_insert)
+    {
+      ::std::string const& v =
+        o.id;
+
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.id_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.id_value,
+        size,
+        is_null,
+        v);
+      i.id_null = is_null;
+      i.id_size = size;
+      grew = grew || (cap != i.id_value.capacity ());
+    }
+
+    // creation_timestamp
+    //
+    {
+      ::butl::timestamp const& v =
+        o.creation_timestamp;
+
+      // From common.hxx:119:14
+      ::uint64_t const& vt =
+        std::chrono::duration_cast < std::chrono::nanoseconds > ((v).time_since_epoch ()).count ();
+
+      bool is_null (false);
+      pgsql::value_traits<
+          ::uint64_t,
+          pgsql::id_bigint >::set_image (
+        i.creation_timestamp_value, is_null, vt);
+      i.creation_timestamp_null = is_null;
+    }
+
+    // archived
+    //
+    {
+      bool const& v =
+        o.archived;
+
+      bool is_null (false);
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_image (
+        i.archived_value, is_null, v);
+      i.archived_null = is_null;
+    }
+
+    return grew;
+  }
+
+  void access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  init (object_type& o,
+        const image_type& i,
+        database* db)
+  {
+    ODB_POTENTIALLY_UNUSED (o);
+    ODB_POTENTIALLY_UNUSED (i);
+    ODB_POTENTIALLY_UNUSED (db);
+
+    // id
+    //
+    {
+      ::std::string& v =
+        o.id;
+
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_value (
+        v,
+        i.id_value,
+        i.id_size,
+        i.id_null);
+    }
+
+    // creation_timestamp
+    //
+    {
+      ::butl::timestamp& v =
+        o.creation_timestamp;
+
+      ::uint64_t vt;
+
+      pgsql::value_traits<
+          ::uint64_t,
+          pgsql::id_bigint >::set_value (
+        vt,
+        i.creation_timestamp_value,
+        i.creation_timestamp_null);
+
+      // From common.hxx:119:14
+      v = brep::timestamp (std::chrono::duration_cast < brep::timestamp::duration > (std::chrono::nanoseconds (vt)));
+    }
+
+    // archived
+    //
+    {
+      bool& v =
+        o.archived;
+
+      pgsql::value_traits<
+          bool,
+          pgsql::id_boolean >::set_value (
+        v,
+        i.archived_value,
+        i.archived_null);
+    }
+  }
+
+  void access::object_traits_impl< ::brep::tenant, id_pgsql >::
+  init (id_image_type& i, const id_type& id)
+  {
+    bool grew (false);
+    {
+      bool is_null (false);
+      std::size_t size (0);
+      std::size_t cap (i.id_value.capacity ());
+      pgsql::value_traits<
+          ::std::string,
+          pgsql::id_string >::set_image (
+        i.id_value,
+        size,
+        is_null,
+        id);
+      i.id_null = is_null;
+      i.id_size = size;
+      grew = grew || (cap != i.id_value.capacity ());
+    }
+
+    if (grew)
+      i.version++;
+  }
+
+  const char access::object_traits_impl< ::brep::tenant, id_pgsql >::persist_statement[] =
+  "INSERT INTO \"tenant\" "
+  "(\"id\", "
+  "\"creation_timestamp\", "
+  "\"archived\") "
+  "VALUES "
+  "($1, $2, $3)";
+
+  const char access::object_traits_impl< ::brep::tenant, id_pgsql >::find_statement[] =
+  "SELECT "
+  "\"tenant\".\"id\", "
+  "\"tenant\".\"creation_timestamp\", "
+  "\"tenant\