![]() PostgreSQL is widely regarded as the most advanced open-source database server with high compliance with SQL:2003, inner and outer joins, views, subselects, foreign keys, triggers, secure connections, and having advanced transactional safety. Development left Berkeley in that year to be managed by a world-wide group of volunteer developers. The Berkeley Postgres code was resurrected in 1995 as "Postgres95," and renamed "PostgreSQL" in 1996. During the financial upheavals of the late 1990s, Illustra was bought by Informix, which was in turn bought by IBM. ![]() Development continued at Berkeley from 1986 to 1994 under the project name "Postgres." In 1994, Illustra Information Technologies used the Postgres code to develop their successful multimedia database. In 1985, the Ingres Corporation used the code to produce one of the first commercially successful relational database servers. PostgreSQL is an object-relational database management system descended from the database project Ingres (named after the famous painter), developed at UC Berkeley from 1977 to 1985.
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