kaido vaikla <kaido(dot)vaikla(at)gmail(dot)com> writes:
> FOR r IN SELECT * FROM pg_event_trigger_dropped_objects()
> LOOP
> execute format ('drop role IF EXISTS r_%I', r.object_name);
> END LOOP;
> kvpg2=# drop schema test;
> ERROR: null values cannot be formatted as an SQL identifier
> CONTEXT: PL/pgSQL function trigger_after_drop_schema() line 7 at EXECUTE
> Question, what i do wrong?
Assume that every dropped object has a name, looks like.
You would probably do well to check object_type before
trying to drop the role.
regards, tom lane