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From: Scott Ribe <[email protected]>
To: Kris Deugau <[email protected]>
Cc: [email protected]
Subject: Re: Guidance Needed for PostgreSQL Upgrade from 12 to 15
Date: Tue, 19 Nov 2024 14:16:47 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
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> On Nov 19, 2024, at 1:40 PM, Kris Deugau <[email protected]> wrote:
> 
> I stand corrected.  I hadn't read the docs on pg_upgrade for quite a while, but after reading the last section in https://www.postgresql.org/docs/current/pgupgrade.html:
> 
> "If you did not start the new cluster, the old cluster was unmodified except that, when linking started, a .old suffix was appended to $PGDATA/global/pg_control. To reuse the old cluster, remove the .old suffix from $PGDATA/global/pg_control; you can then restart the old cluster."
> 
> I see what you mean.
> 

There's nothing wrong per se about taking the snapshot before, I was just saving the potential time of re-running pg_upgrade. Heck, take a snapshot before *and* after ;-)

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