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Re: nbtree: Cache operator family OID in _bt_setup_array_cmp - Mailing list pgsql-hackers

From Peter Geoghegan
Subject Re: nbtree: Cache operator family OID in _bt_setup_array_cmp
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Msg-id CAH2-WzkcsHx7mh5FYzXSwNNg3vv0GcFX5+rCfkaxuh2CNSTuug@mail.gmail.com
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In response to Re: nbtree: Cache operator family OID in _bt_setup_array_cmp  (Peter Eisentraut <peter@eisentraut.org>)
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On Wed, Jan 7, 2026 at 9:45 AM Peter Eisentraut <peter@eisentraut.org> wrote:
> Are you claiming that this has a performance impact, or that it makes
> the code easier to understand, or something else?  The patch isn't
> necessarily wrong, but a clear description of the motivation would be good.

I've noticed that making a local copy of a variable can sometimes help
in tight inner loops, by avoiding an aliasing issue. But it is only
something I've seen help in extreme, rare cases.

--
Peter Geoghegan

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