Josh Berkus <[email protected]> writes:
> Not as far as I can tell. It looks to me like the planner is assuming
> that a forwards index scan and a reverse index scan will have the same
> cost.
Right, because they do. If you think otherwise, demonstrate it.
(bonnie tests approximating a reverse seqscan are not relevant
to the performance of indexscans.)
regards, tom lane
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