Alvaro Herrera <alvherre@commandprompt.com> writes:
> Tom Lane wrote:
>> Yeah, we had better investigate some way to clean them up. It was never
>> obvious before that it mattered to get rid of orphan temp tables, but I
>> guess it does.
> Would it be enough to delete the tuple from pg_class?
No, you need a full DROP. I don't see that that's harder than removing
only the pg_class tuple --- the problem in either case is to be sure
it's OK. In particular, how to avoid a race condition against an
incoming backend that adopts that BackendId? Worst-case, you could be
deleting a temp table he just made.
regards, tom lane
