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PostgreSQL logo
Developer PostgreSQL Global Development Group
Latest release 8.2.6 / January 4, 2008
Preview release 8.3rc2 / January 18, 2008
OS Cross-platform
Genre object-relational database management system
License BSD
Website www.postgresql.org

PostgreSQL is an object-relational database management system (ORDBMS). It is released under a BSD-style license and is thus free software. As with many other open-source programs, PostgreSQL is not controlled by any single company, but relies on a global community of developers and companies to develop it.

PostgreSQL's unusual-looking name makes some readers pause when trying to pronounce it, especially those who pronounce SQL as "sequel". PostgreSQL's developers pronounce it (Audio sample, 5.6k MP3). It is also common to hear it abbreviated as simply "postgres", which was its original name.

Because of ubiquitous support for the SQL Standard amongst all relational databases, the community considered changing the name back to Postgres. However, the PostgreSQL Core Team announced in 2007 that the product would continue to be named PostgreSQL. The name refers to the project's origins as a "post-Ingres" database, the original authors having also developed the Ingres database.