Re: Skipping schema changes in publication

From: shveta malik <shveta(dot)malik(at)gmail(dot)com>
To: Shlok Kyal <shlok(dot)kyal(dot)oss(at)gmail(dot)com>
Cc: vignesh C <vignesh21(at)gmail(dot)com>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Peter Smith <smithpb2250(at)gmail(dot)com>, "Zhijie Hou (Fujitsu)" <houzj(dot)fnst(at)fujitsu(dot)com>, YeXiu <1518981153(at)qq(dot)com>, Ian Lawrence Barwick <barwick(at)gmail(dot)com>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, shveta malik <shveta(dot)malik(at)gmail(dot)com>
Subject: Re: Skipping schema changes in publication
Date: 2026-02-06 10:23:57
Message-ID: CAJpy0uB=gaJgDaP8MiVeZmpxALrmDPbx=fqoidAbzhwEO3cv-g@mail.gmail.com
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On Thu, Feb 5, 2026 at 10:59 AM Shlok Kyal <shlok(dot)kyal(dot)oss(at)gmail(dot)com> wrote:
>
> I have added the fix of the same in the latest v41 patch and added the
> corresponding test in 101_test.pl file.
> I have also merged the v40-0001 and v40-0002 patches to form v41-0001
> patch and v41-0002 has the extended tests.
>

Thank You for the patched Shlok. While testing I found a case where
table-sync and incremental-sync are not replicating same set of
tables.

I have attached the test-case and results in DifferentPubViaRoot.txt

The problem happens when we have a subscriber subscribing to multiple
pubs with different EXCEPT and different PUBLISH_VIA_PARTITION_ROOT
value. Example:

CREATE PUBLICATION pub1 for ALL TABLES EXCEPT table (tab_part_1_p1,
tab_part_2_p2) WITH (PUBLISH_VIA_PARTITION_ROOT=true);
CREATE PUBLICATION pub2 for ALL TABLES EXCEPT table (tab_part_2) WITH
(PUBLISH_VIA_PARTITION_ROOT=false);

We need to decide the behaviour of such a case for Apporach1. It will
be good to analyze row-filter and column-list behaviour for equivalent
cases i.e. publication publishing the same set of tables with
different row-filters and different PUBLISH_VIA_PARTITION_ROOT value.
Once we have clarity on that, we can decide about the behaviour here.

thanks
Shveta

Attachment Content-Type Size
DifferentPubViaRoot.txt text/plain 4.5 KB

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