Tom Lane wrote:
> Hannu Krosing <hannu@tm.ee> writes:
> > The point I was trying to make was that faster count(*)'s is just a side
> > effect. If we could (conditionally) keep visibility info in indexes,
>
> I think that's not happening, conditionally or otherwise. The atomicity
> problems alone are sufficient reason why not, even before you look at
> the performance issues.
What are the atomicity problems of adding a create/expire xid to the
index tuples?
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