PostgreSQL Brief History
1977-1985: A project called INGRES was developed:
- Proof-of-concept for relational databases.
- Established the company Ingres in 1980.
- Bought by Computer Associates in 1994.
- Development of the concepts in INGRES with a focus on object orientation and the query language Quel.
- The code base of INGRES was not used as a basis for POSTGRES.
- Commercialized as Illustra (bought by Informix, bought by IBM).
- Support for SQL was added in 1994.
- Released as Postgres95 in 1995.
- Re-released as PostgreSQL 6.0 in 1996.
- Establishment of the PostgreSQL Global Development Team.
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