Seonglae ChoPostgreSQL the database was derived from the POSTGRES Project, a package written at the University of California at Berkeley in 1986.
This package included a query language called "PostQUEL".
In 1994, Postgres95 was built on top of POSTGRES code, adding an SQL language interpreter as a replacement for PostQUEL.
Eventually, Postgres95 was renamed to PostgreSQL to reflect the SQL query capability.
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