Re: Introduce XID age and inactive timeout based replication slot invalidation

From: Bertrand Drouvot <bertranddrouvot(dot)pg(at)gmail(dot)com>
To: Nathan Bossart <nathandbossart(at)gmail(dot)com>
Cc: Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Introduce XID age and inactive timeout based replication slot invalidation
Date: 2024-03-06 09:12:15
Message-ID: Zegzb30fgxh2FdoV@ip-10-97-1-34.eu-west-3.compute.internal
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Hi,

On Tue, Mar 05, 2024 at 01:44:43PM -0600, Nathan Bossart wrote:
> On Wed, Mar 06, 2024 at 12:50:38AM +0530, Bharath Rupireddy wrote:
> > On Mon, Mar 4, 2024 at 2:11 PM Bertrand Drouvot
> > <bertranddrouvot(dot)pg(at)gmail(dot)com> wrote:
> >> On Sun, Mar 03, 2024 at 03:44:34PM -0600, Nathan Bossart wrote:
> >> > Unless I am misinterpreting some details, ISTM we could rename this column
> >> > to invalidation_reason and use it for both logical and physical slots. I'm
> >> > not seeing a strong need for another column.
> >>
> >> Yeah having two columns was more for convenience purpose. Without the "conflict"
> >> one, a slot conflicting with recovery would be "a logical slot having a non NULL
> >> invalidation_reason".
> >>
> >> I'm also fine with one column if most of you prefer that way.
> >
> > While we debate on the above, please find the attached v7 patch set
> > after rebasing.
>
> It looks like Bertrand is okay with reusing the same column for both
> logical and physical slots

Yeah, I'm okay with one column.

Regards,

--
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com

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