[ Thanks to david for
this link. ]
“PostgreSQL is a fully featured object-relational database
management system. It supports a large part of the SQL standard and
is designed to be extensible by users in many aspects. Some of the
features are: ACID transactions, foreign keys, views, sequences,
subqueries, triggers, user-defined types and functions, outer
joins, multiversion concurrency control. Graphical user interfaces
and bindings for many programming languages are available as
well…”