Re: [HACKERS] Slow count(*) again...

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Robert Haas <robertmhaas@xxxxxxxxx> writes:
> I don't, however, agree with his contention that this is easy to
> implement.  It would be easy to implement something that sucked.  It
> would be hard to implement something that actually helped in the cases
> where the existing settings aren't already sufficient.

Exactly.  A hint system that actually did more good than harm would be a
very nontrivial project.  IMO such effort is better spent on making the
optimizer smarter.

			regards, tom lane

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