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DROP CAST(7)		 PostgreSQL 17.5 Documentation		  DROP CAST(7)

NAME
       DROP_CAST - remove a cast

SYNOPSIS
       DROP CAST [ IF EXISTS ] (source_type AS target_type) [ 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.

       source_type
	   The name of the source data type of the cast.

       target_type
	   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))

PostgreSQL 17.5			     2025			  DROP CAST(7)

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