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PostgreSQL

   Also found in: Wikipedia 0.01 sec.
(database)PostgreSQL - /'post-gres-kyu-el/ An enhancement of the POSTGRES database system.

PostgreSQL is an advanced relational database management system with some object oriented approaches. PostgreSQL is developed and distributed as free software, and while retaining its freedom it remains technically and featurewise a worthy competitor to even the most advanced commercial alternatives.

It was also one of the first databases to offer MVCC as opposed to row-level locking or table locking, thereby greatly improving multi-user performance.

PostgreSQL implements an extended subset of ANSI SQL and runs on many platforms. It also has interfaces to many different programming languages and database protocols, like ODBC and JDBC.

http://postgresql.org/.


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Into this environment, a new breed of application has entered under the banner of "open architecture," the cornerstone of an emerging reseller's market for customizable software built on an "open stack" of open-source software components, such as Linux, the PostgreSQL database, and the Qt programming framework for C++.
By leveraging the global PostgreSQL database community and driving true innovation with its massively parallel processing technology, Greenplum's breakthrough price-performance will fundamentally change the way companies use analytics to drive their business.
The Red Hat Database product is an open source database solution, based on PostgreSQL 7.
 
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