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DROP CAST(7)		  PostgreSQL 18.6 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 18.6 		      2026			    DROP CAST(7)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=DROP_CAST&sektion=7&manpath=FreeBSD+Ports+15.1.quarterly>

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