On Tue, 2009-06-09 at 12:07 -0400, Tom Lane wrote:
> We could probably fix this specific issue by refactoring things in such
> a way that the seqscan start point is frozen on the first read and
> re-used after rewinds.
I don't know what you mean by "frozen" exactly, but the start point of a
synchronized scan is stored in shared memory; otherwise, it wouldn't
know where to stop.
Regards,Jeff Davis