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From: Tom Lane <tgl@sss.pgh.pa.us>
To: dcb314@hotmail.com
Cc: pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #19066: postgresql-18.0/src/backend/optimizer/geqo/geqo_ox2.c:86: Array index check in wrong place ?
Date: Fri, 26 Sep 2025 10:53:26 -0400
Message-ID: <4059820.1758898406@sss.pgh.pa.us> (raw)
In-Reply-To: <19066-53bfa81d53f11b75@postgresql.org>
References: <19066-53bfa81d53f11b75@postgresql.org>

PG Bug reporting form <noreply@postgresql.org> writes:
> Static analyser cppcheck says:

> postgresql-18.0/src/backend/optimizer/geqo/geqo_ox2.c:86:22: style: Array
> index 'j' is used before limits check. [arrayIndexThenCheck]

Did your static analyzer not notice that this dead code is
not even compiled?  I don't have a lot of faith in analyzers
that ignore #ifdefs.

(It's fair to ask why we haven't removed this code altogether
... laziness I guess, or waiting for something better than
GEQO to come along.  But expending effort on fixing it
is definitely not in the cards.)

			regards, tom lane





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