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From: Nathan Bossart <nathandbossart@gmail.com>
To: Hannu Krosing <hannuk@google.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Nitin Motiani <nitinmotiani@google.com>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: Horribly slow pg_upgrade performance with many Large Objects
Date: Mon, 21 Jul 2025 09:38:57 -0500
Message-ID: <aH5RAeaQJTmPpsrd@nathan> (raw)
In-Reply-To: <CAMT0RQQmc5KKCYUG4Qa1R2L-Yar=7p_pEROLrEy_SSNkG6eRNw@mail.gmail.com>
References: <CAH5HC942o6j1qyVysiBtO+Vpb=XOBPbf3rKqsOLtpDpp0SzjkA@mail.gmail.com>
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	<CAH5HC96=3NjeYA5vuj8CyMmiFhU27jgvQ9WgXbUDccrE7xvwYw@mail.gmail.com>
	<aHUvLi_sdfBrxzYh@nathan>
	<700576.1752514083@sss.pgh.pa.us>
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	<CAMT0RQQmc5KKCYUG4Qa1R2L-Yar=7p_pEROLrEy_SSNkG6eRNw@mail.gmail.com>

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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