Markus Schaber <schabi@logix-tt.com> writes:
> Yes, and my question is whether it is easy and worth the effort. to add
> that information (about the acutally offending subquery) to the message.
I'm not sure about localizing the subquery per se, but it might be
possible to add a syntax pointer to the specific variable occurrence
that it's complaining about. That would help at least somewhat in
cases like this.
regards, tom lane