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DROP CAST(7)                     SQL Commands                     DROP CAST(7)

NAME
       DROP CAST - remove a cast

SYNOPSIS
       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)]

SQL - Language Statements         2014-07-21                      DROP CAST(7)