DROP TRANSFORM
Description
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.
Parameters
- 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.
 - RESTRICT
 - 
    
Refuse to drop the transform if any objects depend on it. This is the default.
 
Examples
To drop the transform for type hstore and language plpythonu :
DROP TRANSFORM FOR hstore LANGUAGE plpythonu;
Compatibility
This form of DROP TRANSFORM is a PostgreSQL extension. See CREATE TRANSFORM for details.