Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> Tom Lane escribi:
>> Well, the first problem is that 8.4 is failing to duplicate the
>> historical behavior.
> Oh! That's easy.
I don't think that testing rowMarks is the right thing at all here.
That tells you whether it's a SELECT FOR UPDATE, but actually we
want any cursor (and only cursors) to have a private snapshot.
Also, do we really need the Register bit? Won't the portal register
its use of the snapshot anyway (or if it doesn't, isn't that a bug)?
regards, tom lane