PostgreSQL history

PostgreSQL has started as a research project in the University of California at Berkeley (UCB), then it has been developed by the community in 1996, up till now PostgreSQL is actively developed by the PostgreSQL community as well as universities. The following time frames shows the history of PostgreSQL development:

• 1977-1985, the Ingres project: Michael Stonebraker created an RDBMS based on the formal relational model
• 1986-1994, postgres: Michael Stonebraker created postgres in order to support complex data types and the object relational model
• 1995, Postgres95: Andrew Yu and Jolly Chen changed the postgres PostQUEL query language with an extended subset of SQL
• 1996, PostgreSQL: Several developers dedicated a lot of labor and time to stabilize postgres95. The first open source version was released on January 29, 1997. With the introduction of new features, enhancements, and due to it being an open source project, the postgres95 name was changed to PostgreSQL.
• PostgreSQL began at version 6, with a very strong starting point due to the advantage of several years of research and development. Being an open source project with a very good reputation, PostgreSQL attracted hundreds of developers. Currently, PostgreSQL has an uncountable number of extensions and a very active community.