DROP TRANSFORM

Name

DROP TRANSFORM -- remove a transform

DROP TRANSFORM [ IF EXISTS ] FOR type_name LANGUAGE lang_name [ CASCADE | RESTRICT ]

DROP TRANSFORM removes a previously defined transform.

To be able to drop a transform, you must own the type and the language. These are the same privileges that are required to create a transform.

IF EXISTS: Do not throw an error if the transform does not exist. A notice is issued in this case.
type_name: The name of the data type of the transform.
lang_name: The name of the language of the transform.
CASCADE: Automatically drop objects that depend on the transform, and in turn all objects that depend on those objects (see Section 5.13).
RESTRICT: Refuse to drop the transform if any objects depend on it. This is the default.

To drop the transform for type hstore and language plpythonu:

DROP TRANSFORM FOR hstore LANGUAGE plpythonu;

This form of DROP TRANSFORM is a PostgreSQL extension. See CREATE TRANSFORM for details.

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