| 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>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Horribly slow pg_upgrade performance with many Large Objects |
| Date: | 2025-04-09 17:17:32 |
| Message-ID: | Z_arrB_gbpUSpFKW@nathan |
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| Lists: | pgsql-hackers |
On Tue, Apr 08, 2025 at 09:41:06PM +0200, Hannu Krosing wrote:
> On Tue, Apr 8, 2025 at 8:39 PM Nathan Bossart <nathandbossart(at)gmail(dot)com> wrote:
>> I've also verified that the dependency information is carried over in
>> upgrades to later versions (AFAICT all the supported ones).
>
> If I remember correctly the change to not copying
> pg_largeobject_metadata data file but instead moving LOs as part of
> schema was done in v12 when oid,, which had been a system column in
> v11, became a user column, so upgrade to v11 is likely also missing
> the dependencies
Right.
--
nathan
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