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Re: Bug in nbtree optimization to skip > operator comparisons (or < comparisons in backwards scans) - Mailing list pgsql-hackers

From Robert Haas
Subject Re: Bug in nbtree optimization to skip > operator comparisons (or < comparisons in backwards scans)
Date
Msg-id CA+Tgmob0XzOQJR4qky1Rm+OyL0G2O31CCMUzAahqBf=iydXadQ@mail.gmail.com
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In response to Re: Bug in nbtree optimization to skip > operator comparisons (or < comparisons in backwards scans)  (Peter Geoghegan <pg@bowt.ie>)
Responses Re: Bug in nbtree optimization to skip > operator comparisons (or < comparisons in backwards scans)
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On Tue, Dec 5, 2023 at 8:15 PM Peter Geoghegan <pg@bowt.ie> wrote:
> Just to be clear, you're raising a concern that seems to me to apply
> to "the other optimization" from the same commit, specifically -- the
> precheck optimization. Not the one I found a problem in. (They're
> closely related but distinct optimizations.)

It isn't very clear from the commit message that this commit is doing
two different things, and in fact I'm still unclear on what exactly
the other optimization is.

--
Robert Haas
EDB: http://www.enterprisedb.com

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