| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Joe Conway <mail(at)joeconway(dot)com> |
| Cc: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, Peter Geoghegan <pg(at)bowt(dot)ie>, Nathan Bossart <nathandbossart(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, "Jonathan S(dot) Katz" <jkatz(at)postgresql(dot)org>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
| Subject: | Re: check_strxfrm_bug() |
| Date: | 2023-04-19 15:01:51 |
| Message-ID: | 2978873.1681916511@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Joe Conway <mail(at)joeconway(dot)com> writes:
> I have wondered a few times, given the known issues with strxfrm, how is
> the use in selfuncs.c still ok. Has anyone taken a hard look at that?
On the one hand, we only need approximately-correct results in that
code. On the other, the result is fed to convert_string_to_scalar(),
which has a rather naive idea that it's dealing with ASCII text.
I've seen at least some strxfrm output that isn't even vaguely
textual-looking.
regards, tom lane
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