PostgreSQL is a robust, next-generation, Object-Relational DBMS (ORDBMS), derived from the Berkeley Postgres database management system.
While PostgreSQL retains the powerful object-relational data model, rich data types and easy extensibility of Postgres, it replaces the PostQuel query language with an extended subset of SQL.
PostgreSQL is an open-source descendant of some original Berkeley code. It supports SQL92 and SQL99 and offers many modern features:
* complex queries
* foreign keys
* triggers
* views
* transactional integrity
* multiversion concurrency control
Additionally, PostgreSQL can be extended by the user in many ways, for example by adding new
* data types
* functions
* operators
* aggregate functions
* index methods
* procedural languages
And because of the liberal license, PostgreSQL can be used, modified, and distributed by everyone free of charge for any purpose, be it private, commercial, or academic.
Project information
- Licence:
- Simplified BSD Licence
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postgresql-common source package in Xenial
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postgresql-common source package in Trusty
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postgresql-common source package in Precise
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postgresql-common source package in Mantic
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postgresql-common source package in Lunar
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