Florian Pflug <fgp@phlo.org> writes:
> So, I guess my question is, if we add safeguards against these sorts of
> bugs for triggers, should we also add them to FOR UPDATE? Historically,
> we seem to have taken the stand that modifications of self-updated tuples
> should be ignored. If we're going to reverse that decision (which I think
> Kevin has argued for quite convincingly), it seems consistent to complain
> about all modifications to self-updated tuples, not only to those involving
> triggers.
I'm not very convinced, except for the specific case of updates caused
by cascaded triggers.
regards, tom lane