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help / color / mirror / Atom feedFrom: Willy-Bas Loos <[email protected]>
To: pgsql-general <[email protected]>
Subject: Re: find replication slots that "belong" to a publication
Date: Fri, 4 Apr 2025 13:42:50 +0200
Message-ID: <CAHnozTgTfoSqAR_4e4-gWkrMsK-ETKS3tgDnM_d7FvyckZeGXg@mail.gmail.com> (raw)
In-Reply-To: <CAHnozTg9sadVff9WSFSBi=f6YhCJ0wPK3+riK441Cdqx-Jj+_g@mail.gmail.com>
References: <CAHnozTg9sadVff9WSFSBi=f6YhCJ0wPK3+riK441Cdqx-Jj+_g@mail.gmail.com>
postgres 13 BTW
On Fri, Apr 4, 2025 at 10:58 AM Willy-Bas Loos <[email protected]> wrote:
> Hi!
>
> I'm looking for a way to find out if there are still replication slots
> active for a publication before dropping the publication in an automated
> way. The idea is that the publication is thought not to be needed any
> longer, but we want to make sure.
>
> I'm having trouble finding a link between a publication, the subscriptions
> and the replication slots. Especially when you don't want to make
> assumptions about any subscriber nodes, so you are restricted to the
> publisher node.
>
> The best I could find was a query listed in pg_stat_activity that lists
> the slot name and the publication name:
> START_REPLICATION SLOT "my_slot" LOGICAL 5DD1/3E56D360 (proto_version '1',
> publication_names '"my_publication"')
>
> I don't like the idea of using string manipulation on such query strings
> to get the information I need. Postgres must have a way to compose this
> query.
> Can anyone tell me a way to find replication slots that belong to a
> publication?
>
> --
> Willy-Bas Loos
>
--
Willy-Bas Loos
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Subject: Re: find replication slots that "belong" to a publication
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