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
Parent topic: SQL Commands