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DBMS > PostgreSQL

PostgreSQL System Properties

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Editorial information provided by DB-Engines
DescriptionBased on the object relational DBMS Postgres Developed as objectoriented DBMS, gradually enhanced with 'standards' like SQL
Database modelRelational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.
DB-Engines Ranking measures the popularity of database management systems
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Rank#5  Overall
#4  Relational DBMS
Technical documentationwww.postgresql.org/­docs/­manuals
DeveloperPostgreSQL Global Development Group www.postgresql.org/­developer
Initial release1989 1989: Postgres, 1996: PostgreSQL
Current release9.5.3, May 2016
LicenseOpen Source BSD
Database as a Service (DBaaS) Only available as a cloud serviceno
Implementation languageC
Server operating systemsFreeBSD
Data schemeyes
Typing predefined data types such as float or dateyes
Secondary indexesyes
SQL Support of (almost full) SQL standard (DML, DDL and DCL statements)yes standard with numerous extensions
APIs and other access methodsnative C library
streaming API for large objects
Supported programming languages.Net
Server-side scripts Stored proceduresuser defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.
Partitioning methods Methods for storing different data on different nodesno, but can be realized using table inheritance for each partition a subtable, inserts are controlled with triggers
Replication methods Methods for redundantly storing data on multiple nodesMaster-slave replication other methods possible by using 3rd party extensions
MapReduce Offers an API for user-defined Map/Reduce methodsno
Consistency concepts Methods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys Referential integrityyes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of dataACID
Concurrency Support for concurrent manipulation of datayes
Durability Support for making data persistentyes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.no
User concepts Access controlfine grained access rights according to SQL-standard

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More resources
DB-Engines blog posts

MySQL, PostgreSQL and Redis are the winners of the March ranking
2 March 2016, Paul Andlinger

Big gains for Relational Database Management Systems in DB-Engines Ranking
2 February 2016, Matthias Gelbmann

MongoDB and PostgreSQL struggle for the lead of the chasing group in the popularity ranking
1 July 2015, Paul Andlinger

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Recent citations in the news

Crunchy Data Releases the Crunchy PostgreSQL Container Suite for Cloud Native Architectures
12 July 2016, insideBIGDATA

Crunchy Data Releases Set of Docker Containers and Kubernetes Services for PostgreSQL
30 June 2016, App Developer Magazine

Senior SQL Database Administrator with PostgreSQL
20 July 2016, Villanovan (subscription)

Crunchy Data Releases the Crunchy PostgreSQL Container Suite, Bringing PostgreSQL RDBMS to Cloud Native ...
28 June 2016, PR Web (press release)

Global Database Management Systems (DBMS) Market 2016- Oracle, IBM, Sybase, Microsoft, PostgreSQL.
13 July 2016, cHollywood News Portal (press release)

provided by Google News

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