Re: Shouldn't the planner have a higher cost for reverse index scans?

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Tom,

Right, because they do.  If you think otherwise, demonstrate it.
(bonnie tests approximating a reverse seqscan are not relevant
to the performance of indexscans.)

Working on it. I *think* I've seen this issue in the field, which is why I brought it up in the first place, but getting a good test case is, of course, difficult.


--
Josh Berkus
PostgreSQL Experts Inc.
www.pgexperts.com

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