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PostgreSQL 9.2.4 Documentation
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DROP COLLATION

Name

DROP COLLATION -- remove a collation

Synopsis

DROP COLLATION [ IF EXISTS ] name [ CASCADE | RESTRICT ]

Description

DROP COLLATION removes a previously defined collation. To be able to drop a collation, you must own the collation.

Parameters

IF EXISTS: Do not throw an error if the collation does not exist. A notice is issued in this case.
name: The name of the collation. The collation name can be schema-qualified.
CASCADE: Automatically drop objects that depend on the collation.
RESTRICT: Refuse to drop the collation if any objects depend on it. This is the default.

Examples

To drop the collation named german:

DROP COLLATION german;

Compatibility

The DROP COLLATION command conforms to the SQL standard, apart from the IF EXISTS option, which is a PostgreSQL extension.

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