I wrote:
>> Jim Nasby <Jim.Nasby@BlueTreble.com> writes:
>>> I can't think of any reason you'd want the current behavior.
>> But I think fixing it to not recurse to extensions during temp namespace
>> cleanup might not be very hard. I'll take a look.
I wrote a test case to try to demonstrate that this patch was fixing a
bug, and was surprised to find that it didn't fail. The reason turns
out to be that we fixed this problem years ago in commit 08dd23cec:
Also, arrange for explicitly temporary tables to not get linked as extension members in the first place, and the
samefor the magic pg_temp_nnn schemas that are created to hold them. This prevents assorted unpleasant results if
anextension script creates a temp table: the forced drop at session end would either fail or remove the entire
extension,and neither of those outcomes is desirable.
Now, if you really try hard, say by creating a temp function, you can
break it. But I don't have all that much sympathy for such use-cases.
I think that the patch I wrote is good cleanup, so I'm still inclined
to apply it in HEAD, but I no longer think it's fixing any case that's
significant in the field. I wonder if you have a counterexample?
regards, tom lane