Message-ID: <6118973a513658c4a46d9399f3691d0ef21672e8.camel@cybertec.at>
Subject: Re: COLLATION update in 13.1
From: Laurenz Albe <laurenz.albe@cybertec.at>
To: Jeremy Schneider <schneider@ardentperf.com>, Matthias Apitz
	 <gurucubano@googlemail.com>
Cc: pgsql-general@lists.postgresql.org
Date: Mon, 24 Feb 2025 12:41:05 +0100
In-Reply-To: <20250224023225.197cac12@ardentperf.com>
References: 
	<CAHzebO-2qy2RkrhTvqPs8=6Ju_6-7C=MSumVMZxTs7zRYp-6mA@mail.gmail.com>
	 <20250224023225.197cac12@ardentperf.com>
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On Mon, 2025-02-24 at 02:32 -0800, Jeremy Schneider wrote:
> On Mon, 24 Feb 2025 11:08:43 +0100
> Matthias Apitz <gurucubano@googlemail.com> wrote:
> > What is the procedure on 13.1 to bring the external (glibc) version
> > in sync with. the used version in the PostgreSQL database?
> 
> If I recall correctly, between versions 10 and 14 you need to use ALTER
> COLLATION name REFRESH VERSION on every collation where there's a
> version mismatch. (This can happen with ICU collations since version 10,
> and with glibc collations since version 13.)

Perhaps I need not say that, but ALTER COLLATION ... REFRESH VERSION only
makes the warning disappear.

If you want to avoid data corruption, rebuild all indexes on strings,
then make the warning disappear.

Yours,
Laurenz Albe

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