PostgreSQL is an object-relational SQL database management system with libpq being its C client library. Applications can use this library to pass queries to the PostgreSQL backend server and to receive the results of those queries using the C programming language. For more information see: https://www.postgresql.org/ This package currently contains a build2 package manager (bpkg) stub meaning that it can only be "built" as already installed in the underlying system (for example, using a system package manager). Send questions, bug reports, or any other feedback about the library itself to the PostgreSQL mailing lists. Send build system and packaging-related feedback to the packaging@build2.org mailing list (see https://lists.build2.org for posting guidelines, etc). The packaging of PostgreSQL for build2 is tracked in a Git repository at: https://git.build2.org/cgit/packaging/postgresql/