Re: Proposal: Filter irrelevant change before reassemble transactions during logical decoding

From: Peter Smith <smithpb2250(at)gmail(dot)com>
To: Ajin Cherian <itsajin(at)gmail(dot)com>
Cc: "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, "Zhijie Hou (Fujitsu)" <houzj(dot)fnst(at)fujitsu(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Proposal: Filter irrelevant change before reassemble transactions during logical decoding
Date: 2025-05-15 23:59:36
Message-ID: CAHut+PtUf0uL+=z=cCC-mVdkCRkxbEi5QoNG00xpGqQSo1Hj+g@mail.gmail.com
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Hi Ajin.

One comment for the patch set v18-0003..

======

1.
+$log_location = -s $node_publisher->logfile;
+$node_publisher->safe_psql('postgres', "DELETE FROM insert_only_table
WHERE id = 1");
+$node_publisher->wait_for_catchup('sub_all');
+
+$logfile = slurp_file($node_publisher->logfile, $log_location);
+ok($logfile =~ qr/Filtering DELETE/,
+ 'unpublished DELETE is filtered');
+

For this delete filter test, shouldn't there be another log file check
missing here which names the filtered relation? -- e.g. something like

+ok($logfile =~ qr/Filtering change for relation "insert_only_table"/,
+ 'delete for relation insert_only_table is filtered');

======
Kind Regards,
Peter Smith.
Fujitsu Australia

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