DROP CONVERSION — remove a conversion
DROP CONVERSION [ IF EXISTS ] name [ CASCADE | RESTRICT ]
DROP CONVERSION removes a previously defined conversion.
To be able to drop a conversion, you must own the conversion.
IF EXISTSDo not throw an error if the conversion does not exist. A notice is issued in this case.
nameThe name of the conversion. The conversion name can be schema-qualified.
CASCADERESTRICTThese key words do not have any effect, since there are no dependencies on conversions.
To drop the conversion named myname:
DROP CONVERSION myname;
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.