Re: Horribly slow pg_upgrade performance with many Large Objects

From: Nathan Bossart <nathandbossart(at)gmail(dot)com>
To: Hannu Krosing <hannuk(at)google(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Nitin Motiani <nitinmotiani(at)google(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Horribly slow pg_upgrade performance with many Large Objects
Date: 2025-07-21 14:38:57
Message-ID: aH5RAeaQJTmPpsrd@nathan
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On Mon, Jul 21, 2025 at 02:03:45AM +0200, Hannu Krosing wrote:
> Do you think the current patch could be backported to at least some
> latest versions ?

I think that's pretty unlikely. It'd be a pretty big departure from our
versioning policy. In the past, we have back-patched "critical"
performance fixes, but that involved changes that had already been in
released versions for years.

--
nathan

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