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.
