PostgreSQL JDBC Driver 42.2.6 Released. Notable changes. Known issues. Support PostgreSQL 11, 12; Return function (PostgreSQL 11) columns in PgDatabaseMetaData#getFunctionColumns. The PostgreSQL JDBC group would like to thank YourKit for graciously providing licenses to the project. The libpq library is the C interface to PostgreSQL. It is a set of library functions that allow client programs to interact with PostgreSQL. It is also the underlying engine for several other PostgreSQL application interfaces, including those written for C, Perl, PHP, Ruby, Python, and Tcl. Postgresql ODBC driver. Contribute to hiinoue/psqlodbc development by creating an account on GitHub. (C) 1998 - 2013 The PostgreSQL Global Development Group Multibyte support was added by Sankyo Unyu Service, (C) 2001. The code contained in this library is based on code written by Christian Czezatke and Dan McGuirk, (C) 1996.