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From: Paul Foerster <[email protected]>
To: Tom Lane <[email protected]>
Cc: Cybertec Schönig & Schönig GmbH <[email protected]>
Cc: Thomas Michael Engelke <[email protected]>
Cc: [email protected]
Subject: Re: ICU Collations and Collation Updates
Date: Mon, 14 Apr 2025 19:24:29 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>
	<[email protected]>

Hi Tom, hi Laurenz

> On 14 Apr 2025, at 16:36, Tom Lane <[email protected]> wrote:
> 
> Laurenz Albe <[email protected]> writes:
>> You would have to build PostgreSQL yourself with a fixed version of ICU
>> that you never upgrade if you want to avoid the problem.
[...]
> 2. It's at least *possible* to use your own fixed-version ICU
> library if you're desperate enough.  I don't think that would work
> too well for libc; you're stuck with what the platform provides.

That topic is interesting because I have a huge problem finding a downtime window for our applications to rebuild after the SLES upgrades. I am in the process of slowly changing everything to ICU. But limiting downtime is essential for me.

We always build the PostgreSQL software from source, so if there's a way to bake the libicu directly into the software to never change it again (beside from recompiling of course), even when building new PostgreSQL versions, I'd very much appreciate if if you could let me know how I would do that.

The necessity for reindex is a huge problem for us.

Cheers,
Paul

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