PostgreSQL is an open-source, Relational Database Management System (RDBMS) available for many platforms including Linux, UNIX, MS Windows and Mac OS X. Please mention your PostgreSQL version when asking questions. Always include the "sql" tag and possibly the "plpgsql" tag if applicable.

PostgreSQL (often called "Postgres") is a powerful, object-relational database system (ORDBMS).

Open source since 1996, it has a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness. Standards compliance is a major focus of the development team. Postgres runs on all major operating systems, including Linux, UNIX (AIX, BSD, HP-UX, SGI IRIX, Mac OS X, Solaris, Tru64), and Windows.

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