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
