PostgreSQL 9.4.0

The World's most advanced Open Source database system with over 15 years of active development
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PostgreSQL is an open source, powerful, reliable, stable, enterprise-ready and free object-relational database system in the style of MariaDB, MySQL or SQLite projects. It’s an ACID (Atomicity, Consistency, Isolation, Durability) compliant database server/engine that can be highly customized and includes numerous attractive features, making a great replacement for the aforementioned database engines.

Features at a glance

Key features include support for foreign keys, views, joins, triggers and stored procedures, support for multiple languages, support for a wide range of SQL data types, including BOOLEAN, CHAR, INTEGER, NUMERIC, VARCHAR, INTERVAL, TIMESTAMP and DATE.

In addition, the software comes with support for storaging binary large objects, including all sorts of multimedia files (video, audio and photo), and provides developers with native programming interfaces for the C, C++, Python, Perl, Ruby, Java, .Net, Tcl and ODBC programming languages.

Among other interesting features, we can mention MVCC (Multi-Version Concurrency Control), tablespaces, multibyte character encodings, point in time recovery, a mature query optimizer and planner, asynchronous replication, online backups, nested transactions (popularly known as savepoints), hot backups, write ahead logging for fault tolerance, support for international character sets, as well as Unicode support.

PostgreSQL in numbers

At the moment, the PostgreSQL database server supports unlimited size for databases, 32 TB should be the maximum size for tables, 1.6 TB per row, 1 GB per field, unlimited rows per table, supports between 250 and 1600 columns per table, depending on column types, and supports unlimited indexes per table.

Supported operating systems

The PostgreSQL has been successfully tested on all mainstream operating systems, including GNU/Linux, BSD, Solaris, HP-UX, AIX, SGI IRIX, Solaris, Tru64, Mac OS X and Microsoft Windows. PostgreSQL is available for download as a universal source archive, as well as pre-compiled binary packages for many Linux distributions, supporting both 32-bit and 64-bit architectures.

Reviewed by , last updated on December 18th, 2014

license type:
BSD License 
developed by:
PostgreSQL Global Development Group
ROOT \ Database \ Database Servers
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What's New in This Release:
  • Flexibility:
  • With the new JSONB data type for PostgreSQL, users no longer have to choose between relational and non-relational data stores: they can have both at the same time. JSONB supports fast lookups and simple expression search queries using Generalized Inverted Indexes (GIN). Multiple new support functions enable users to extract and manipulate JSON data, with a performance which matches or surpasses the most popular document databases. With JSONB, table data can be easily integrated with document data for a fully integrated database environment.
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Application description

PostgreSQL is an open source and powerful object-relational database system that has been successfully used and deploy...

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