1PostgreSQL is a sophisticated Object-Relational DBMS, supporting 2almost all SQL constructs, including subselects, transactions, and 3user-defined types and functions. It is the most advanced open-source 4database available anywhere. Commercial Support is also available. 5 6The original Postgres code was the effort of many graduate students, 7undergraduate students, and staff programmers working under the direction of 8Professor Michael Stonebraker at the University of California, Berkeley. In 91995, Andrew Yu and Jolly Chen took on the task of converting the DBMS query 10language to SQL and created a new database system which came to known as 11Postgres95. Many others contributed to the porting, testing, debugging and 12enhancement of the Postgres95 code. As the code improved, and 1995 faded into 13memory, PostgreSQL was born. 14 15PostgreSQL development is presently being performed by a team of Internet 16developers who are now responsible for all current and future development. The 17development team coordinator is Marc G. Fournier (scrappy@PostgreSQL.ORG). 18Support is available from the PostgreSQL developer/user community through the 19support mailing list (questions@PostgreSQL.ORG). 20 21PostgreSQL is free and the complete source is available. 22