DROP CAST

Removes a cast.

Synopsis

DROP CAST [IF EXISTS] (<sourcetype> AS <targettype>) [CASCADE | RESTRICT]

Description

DROP CAST will delete a previously defined cast. To be able to drop a cast, you must own the source or the target data type. These are the same privileges that are required to create a cast.

Parameters

IF EXISTS

Do not throw an error if the cast does not exist. A notice is issued in this case.

sourcetype

The name of the source data type of the cast.

targettype

The name of the target data type of the cast.

CASCADE

RESTRICT

These keywords have no effect since there are no dependencies on casts.

Examples

To drop the cast from type text to type int:

DROP CAST (text AS int);

Compatibility

There DROP CAST command conforms to the SQL standard.

See Also

CREATE CAST

Parent topic: SQL Command Reference