DROP CONVERSION
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 Postgres Pro.