An active DBMS developed at the {University of California at Berkeley} by a team LED by Michael Stonebraker (1986-1994). Postgres was later taken by Illustra and developed into a commercial product, which in turn was bought by Informix and integrated into their product, {Universal Server}. PostgreSQL is a further development of the original POSTGRES code as a free software alternative to commercial DBMS vendor offerings. [Details? Reference? Relationship to Ingres?] (1999-07-04)