Source : Free On-Line Dictionary of Computing

POSTGRES
     
         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)