KaiGai Kohei <kaigai(at)ak(dot)jp(dot)nec(dot)com> writes:
> I found a strange behavior on the recent v8.4devel with/without
> SE-PostgreSQL patch set. Can you reproduce the following behavior?
> When I use UPDATE statement with RETURNING clause which contains
> references to "tableoid" system column, it returns InvalidOid.
> (The correct valus is 16384 in this case.)
> However, RETURNING clause with INSERT/DELETE statement works well.
Confirmed here, all the way back to 8.2. I concur it's a bug.
regards, tom lane