Re: Optionally automatically disable logical replication subscriptions on error

From: Greg Nancarrow <gregn4422(at)gmail(dot)com>
To: "osumi(dot)takamichi(at)fujitsu(dot)com" <osumi(dot)takamichi(at)fujitsu(dot)com>
Cc: vignesh C <vignesh21(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Mark Dilger <mark(dot)dilger(at)enterprisedb(dot)com>, "Smith, Peter" <peters(at)fast(dot)au(dot)fujitsu(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Optionally automatically disable logical replication subscriptions on error
Date: 2021-12-16 05:32:08
Message-ID: CAJcOf-fY7VspwzN2PPDQq1c1DpvhxHuDv4DWq+=zDWb_60u-rQ@mail.gmail.com
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On Tue, Dec 14, 2021 at 4:34 PM osumi(dot)takamichi(at)fujitsu(dot)com
<osumi(dot)takamichi(at)fujitsu(dot)com> wrote:
>
> Besides all of those changes, I've removed the obsolete
> comment of DisableSubscriptionOnError in v12.
>

I have a few minor comments, otherwise the patch LGTM at this point:

doc/src/sgml/catalogs.sgml
(1)
Current comment says:

+ If true, the subscription will be disabled when subscription's
+ worker detects any errors

However, in create_subscription.sgml, it says "disabled if any errors
are detected by subscription workers ..."

For consistency, I think it should be:

+ If true, the subscription will be disabled when subscription
+ workers detect any errors

src/bin/psql/describe.c
(2)
I think that:

+ gettext_noop("Disable On Error"));

should be:

+ gettext_noop("Disable on error"));

for consistency with the uppercase/lowercase usage on other similar entries?
(e.g. "Two phase commit")

src/include/catalog/pg_subscription.h
(3)

+ bool subdisableonerr; /* True if apply errors should disable the
+ * subscription upon error */

The comment should just say "True if occurrence of apply errors should
disable the subscription"

Regards,
Greg Nancarrow
Fujitsu Australia

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