1DROP CAST(7)             PostgreSQL 10.7 Documentation            DROP CAST(7)
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NAME

6       DROP_CAST - remove a cast
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SYNOPSIS

9       DROP CAST [ IF EXISTS ] (source_type AS target_type) [ CASCADE | RESTRICT ]
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DESCRIPTION

12       DROP CAST removes a previously defined cast.
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14       To be able to drop a cast, you must own the source or the target data
15       type. These are the same privileges that are required to create a cast.
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PARAMETERS

18       IF EXISTS
19           Do not throw an error if the cast does not exist. A notice is
20           issued in this case.
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22       source_type
23           The name of the source data type of the cast.
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25       target_type
26           The name of the target data type of the cast.
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28       CASCADE
29       RESTRICT
30           These key words do not have any effect, since there are no
31           dependencies on casts.
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EXAMPLES

34       To drop the cast from type text to type int:
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36           DROP CAST (text AS int);
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COMPATIBILITY

39       The DROP CAST command conforms to the SQL standard.
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SEE ALSO

42       CREATE CAST (CREATE_CAST(7))
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46PostgreSQL 10.7                      2019                         DROP CAST(7)
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