On Tue, 2007-03-06 at 12:59 -0500, Tom Lane wrote:
> Jeff Davis <[EMAIL PROTECTED]> writes:
> > If I were to implement this idea, I think Heikki's bitmap of pages
> > already read is the way to go.
> I think that's a good way to guarantee that you'll not finish in time
> for 8.3.  Heikki's idea is just at the handwaving stage at this point,
> and I'm not even convinced that it will offer any win.  (Pages in
> cache will be picked up by a seqscan already.)

I agree that it's a good idea stick with the current implementation
which is, as far as I can see, meeting all of my performance goals.

        Jeff Davis

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