Re: ICU fixed digit reordering bug

From: Peter Eisentraut <peter(at)eisentraut(dot)org>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: ICU fixed digit reordering bug
Date: 2026-11-03 10:11:21
Message-ID: 8a066567-0ff4-4ab3-92c2-7f14f0b602a7@eisentraut.org
Views: Whole Thread | Raw Message | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

On 27.10.26 22:39, Tom Lane wrote:
> Peter Eisentraut <peter(at)eisentraut(dot)org> writes:
>> There have been various reports over time that ICU collations that
>> reorder digits are buggy. ...
>> This issue was finally fixed in ICU 79, which came out a few days ago.
>> I have confirmed that the PostgreSQL issue is fixed with that new version.
>
>> The question now is whether there is anything else we want to do about this?
>
>> 0. Do nothing. Leave the ICU bug and possibly this email as reference
>> and recommend that users don't use the affected kinds of ICU locales
>> with the affected older ICU versions.
>
> I like option 0. It can't be incumbent on us to provide defenses
> for every bug in every piece of software that we depend on ...
> especially not edge-case bugs like this one seems to be.

Ok. This email thread can serve as something to point to if this comes
up again.

In response to

Browse pgsql-hackers by date

  From Date Subject
Next Message Bertrand Drouvot 2026-11-03 10:15:48 Re: Report buffer access strategies in EXPLAIN
Previous Message Alexander Pyhalov 2026-11-03 10:04:17 Re: Asynchronous MergeAppend