Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> Tom Lane escribi:
>> I think we need to ensure that when a cursor is created, it obtains a
>> private copy of the current snapshot ... but I'm not sure where that
>> ought to happen. Thoughts?
> Maybe you are right, but I don't think that's the only bug here.
Well, the first problem is that 8.4 is failing to duplicate the
historical behavior. After that we can think about whether we'd like to
change the historical behavior. I'm not entirely convinced about that
yet (and it certainly wouldn't be something I'd want to back-patch).
regards, tom lane