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PostgreSQL 9.4.1 Documentation
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DROP EXTENSION

Name

DROP EXTENSION -- remove an extension

Synopsis

DROP EXTENSION [ IF EXISTS ]name [, ...] [ CASCADE | RESTRICT ]

Description

DROP EXTENSION removes extensions from the database. Dropping an extension causes its component objects to be dropped as well.

You must own the extension to useDROP EXTENSION.

Parameters

IF EXISTS: Do not throw an error if the extension does not exist. A notice is issued in this case.
name: The name of an installed extension.
CASCADE: Automatically drop objects that depend on the extension.
RESTRICT: Refuse to drop the extension if any objects depend on it (other than its own member objects and other extensions listed in the sameDROP command). This is the default.

Examples

To remove the extensionhstore from the current database:

DROP EXTENSION hstore;

This command will fail if any ofhstore's objects are in use in the database, for example if any tables have columns of thehstore type. Add theCASCADE option to forcibly remove those dependent objects as well.

Compatibility

DROP EXTENSION is aPostgreSQL extension.