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PostgreSQL (aka Postgres) is an open-source full-featured relational database system. It has more than nineteen years of active development to back up as well as excellent reputation for its reliability and safety.

Postgres runs natively on all advanced operating systems including, but not limited to Linux, UNIX-based (AIX, BSD, HP-UX, SGI-IRIX, Mac OS X, Solaris, Tru64) and Windows. It fully meets ACID conditions, fully supports foreign keys, JOIN operations, views, triggers and stored procedures. It contains most of SQL92 and SQL99 data types, for example INTEGER, NUMERIC, BOOLEAN, CHAR, VARCHAR, DATE, INTERVAL, and TIMESTAMP. There is also support for modern data types such as JSON or XML.