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Name
DROP CAST -- remove a user-defined cast
Synopsis
DROP CAST ( 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
- 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.
Notes
Use CREATE CAST to create user-defined casts.
Examples
To drop the cast from type text to type int:
DROP CAST (text AS int4);
Compatibility
The DROP CAST command conforms to SQL99.
This file was copied from PostgreSQL 7.3.1 help system.
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