Re: speed up a logical replica setup

From: "Euler Taveira" <euler(at)eulerto(dot)com>
To: "Peter Eisentraut" <peter(at)eisentraut(dot)org>, "Shlok Kyal" <shlok(dot)kyal(dot)oss(at)gmail(dot)com>
Cc: "Amit Kapila" <amit(dot)kapila16(at)gmail(dot)com>, "kuroda(dot)hayato(at)fujitsu(dot)com" <kuroda(dot)hayato(at)fujitsu(dot)com>, "Tomas Vondra" <tomas(dot)vondra(at)enterprisedb(dot)com>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>, "Michael Paquier" <michael(at)paquier(dot)xyz>, "Andres Freund" <andres(at)anarazel(dot)de>, "Ashutosh Bapat" <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>, Fabrízio de Royes Mello <fabriziomello(at)gmail(dot)com>, "vignesh C" <vignesh21(at)gmail(dot)com>
Subject: Re: speed up a logical replica setup
Date: 2024-03-21 04:56:11
Message-ID: 0b0b5d11-2b10-493f-b9fd-649c6b9bdcd4@app.fastmail.com
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On Tue, Mar 19, 2024, at 8:57 AM, Peter Eisentraut wrote:
> On 19.03.24 12:26, Shlok Kyal wrote:
> >
> > I have added a top-up patch v30-0003. The issue in [1] still exists in
> > the v30 patch. I was not able to come up with an approach to handle it
> > in the code, so I have added it to the documentation in the warning
> > section. Thoughts?
>
> Seems acceptable to me. pg_createsubscriber will probably always have
> some restrictions and unsupported edge cases like that. We can't
> support everything, so documenting is ok.

Shlok, I'm not sure we should add a sentence about a pilot error. I added a
comment in check_subscriber that describes this situation. I think the comment
is sufficient to understand the limitation and, if it is possible in the future,
a check might be added for it. I didn't include v31-0004.

--
Euler Taveira
EDB https://www.enterprisedb.com/

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