DROP COLLATION

Removes a previously defined collation.

Synopsis

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

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.

Notes

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

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 Greenplum Database extension.

See Also

ALTER COLLATION, CREATE COLLATION

Parent topic: SQL Commands