Re: 7.4 - FK constraint performance

On Thu, 2004-02-12 at 20:10, Tom Lane wrote:
> ow <oneway_111@yahoo.com> writes:
> > Sounds pretty bad for my case. Any way to avoid the 10% scan?
>
> Can't see how we optimize your case without pessimizing more-common cases.
> Sorry.

Statistics say there are 10 values. Statistics list the 10 most common
values (all of them). Given this, would it not be reasonable to assume
that 239 is a recent addition (if there at all) to the table and not
very common?

--
Rod Taylor <rbt [at] rbt [dot] ca>

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