Guys,
> Hm, that had nothing to do with multi-column correlation though.
> I'm at a loss to think of any work that matches with Josh's
> recollection.
Hmmmm .... it's possible that early e-mails about Manfred's patch claimed to
improve performance for multi-column indexes.
But it's also possible I'm remembering something else.
Darn it, though! 'cause multi-column correlation is one of our big issues on
estimates for complex queries.
--
-Josh Berkus
Aglio Database Solutions
San Francisco
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