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From: John DeSoi <desoi@pgedit.com>
To: Axel Rau <Axel.Rau@chaos1.de>
Cc: pgsql-admin@lists.postgresql.org
Subject: Re: restarting logical replication after upgrading standby
Date: Wed, 9 Feb 2022 07:57:03 -0600
Message-ID: <60559CE6-D89F-4897-883D-1D716A4F654A@pgedit.com> (raw)
In-Reply-To: <c534c888-93dd-48e0-fb31-4798bc1ac6c0@Chaos1.DE>
References: <a4ddf516-469f-2101-069b-033644230ac0@Chaos1.DE>
	<757323a0-6eeb-3ec1-d578-d98214247c41@Chaos1.DE>
	<CAM+6J94Wtzm3M1BwRYjzRzzr9VPkJ+KPtz3M=gWisgP2ywTMZQ@mail.gmail.com>
	<1cc52b6e-484e-8502-65dd-d3ba66982fb5@Chaos1.DE>
	<CAM+6J96j4qErattg-DiqRKFE80GFTn6ag7-Q2A7DKQX1UWUOGQ@mail.gmail.com>
	<c534c888-93dd-48e0-fb31-4798bc1ac6c0@Chaos1.DE>



> On Feb 7, 2022, at 11:00 AM, Axel Rau <Axel.Rau@chaos1.de> wrote:
> 
> Anybody out there, succeeding with upgrading a logical replication subscriber without resyncing it?


I have not tried it, but thought this the idea below would work for upgrading the publisher or subscriber with pg_upgrade. Plan to test it in a few weeks. If anyone knows it will not work, that will save me some time :).


Before pg_upgrade on the subscriber:

alter subscription my_subscription disable;
alter subscription my_subscription set (slot_name = NONE);

And then after pg_upgrade:

alter subscription my_subscription enable;

John DeSoi, Ph.D.







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  Subject: Re: restarting logical replication after upgrading standby
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