RE: Skipping logical replication transactions on subscriber side

From: "osumi(dot)takamichi(at)fujitsu(dot)com" <osumi(dot)takamichi(at)fujitsu(dot)com>
To: 'Masahiko Sawada' <sawada(dot)mshk(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
Cc: "houzj(dot)fnst(at)fujitsu(dot)com" <houzj(dot)fnst(at)fujitsu(dot)com>, "tanghy(dot)fnst(at)fujitsu(dot)com" <tanghy(dot)fnst(at)fujitsu(dot)com>, Alexey Lesovsky <lesovsky(at)gmail(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Greg Nancarrow <gregn4422(at)gmail(dot)com>
Subject: RE: Skipping logical replication transactions on subscriber side
Date: 2021-10-08 12:22:07
Message-ID: OSBPR01MB4888B3186514B19E125A27BEEDB29@OSBPR01MB4888.jpnprd01.prod.outlook.com
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On Thursday, September 30, 2021 2:45 PM Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> wrote:
> I've attached updated patches that incorporate all comments I got so far. Please
> review them.
Hello

Minor two comments for v15-0001 patch.

(1) a typo in pgstat_vacuum_subworker_stat()

+ /*
+ * This subscription is live. The next step is that we search errors
+ * of the table sync workers who are already in sync state. These
+ * errors should be removed.
+ */

This subscription is "alive" ?

(2) Suggestion to add one comment next to '0' in ApplyWorkerMain()

+ /* report the table sync error */
+ pgstat_report_subworker_error(MyLogicalRepWorker->subid,
+ MyLogicalRepWorker->relid,
+ MyLogicalRepWorker->relid,
+ 0,
+ InvalidTransactionId,
+ errdata->message);

How about writing /* no corresponding message type for table synchronization */ or something ?

Best Regards,
Takamichi Osumi

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