Re: Horribly slow pg_upgrade performance with many Large Objects

From: Nathan Bossart <nathandbossart(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Hannu Krosing <hannuk(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: 2025-04-08 17:41:26
Message-ID: Z_VfxnhSJIa6VQJt@nathan
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On Tue, Apr 08, 2025 at 01:36:58PM -0400, Tom Lane wrote:
> Hmm ... one annoying thing for this project is that AFAICS pg_upgrade
> does *not* preserve database OIDs, which is problematic for using
> COPY to load pg_shdepend rows.

I think it does; see commit aa01051.

--
nathan

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