DROP CONVERSION
Name
DROP CONVERSION -- remove a conversion
Synopsis
DROP CONVERSION [ IF EXISTS ] name [ CASCADE | RESTRICT ]
Description
   DROP CONVERSION removes a previously defined conversion.
   To be able to drop a conversion, you must own the conversion.
  
Parameters
- IF EXISTS
-        Do not throw an error if the conversion does not exist.
       A notice is issued in this case.
       
- name
-        The name of the conversion. The conversion name can be
       schema-qualified.
       
- CASCADE
 RESTRICT
-        These key words do not have any effect, since there are no
       dependencies on conversions.
       
Examples
   To drop the conversion named myname:
DROP CONVERSION myname;
Compatibility
   There is no DROP CONVERSION statement in the SQL
   standard, but a DROP TRANSLATION statement that
   goes along with the CREATE TRANSLATION statement
   that is similar to the CREATE CONVERSION
   statement in PostgreSQL.