"Stefan Kunick" <stefan(at)kunick(dot)org> writes:
> I create a enumeration. After this, i used the enumeration in a table. I
> delete the enumeration in the table pg_enum (delete from pg_enum where
> enumtypid=16631 and enumlabel='center'; The delete don't check, that the
> element is used in a table.
Manual modifications of the system catalogs are not supported. If you
choose to do that, it's on your own head whether the results are sane.
regards, tom lane