DROP CAST
Section: SQL Commands (7)Updated: 2012-08-14
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NAME
DROP CAST - remove a castSYNOPSIS
DROP CAST [ IF EXISTS ] (sourcetype AS targettype) [ CASCADE | RESTRICT ]
DESCRIPTION
DROP CAST removes 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 key words do not have any 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
The DROP CAST command conforms to the SQL standard.
SEE ALSO
CREATE CAST [create_cast(7)]
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Time: 05:34:14 GMT, December 24, 2015