Re: Proposal: Conflict log history table for Logical Replication

From: vignesh C <vignesh21(at)gmail(dot)com>
To: shveta malik <shveta(dot)malik(at)gmail(dot)com>
Cc: Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, "Zhijie Hou (Fujitsu)" <houzj(dot)fnst(at)fujitsu(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, saurabh singh <saurabh(dot)singh214(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Peter Smith <smithpb2250(at)gmail(dot)com>, Nisha Moond <nisha(dot)moond412(at)gmail(dot)com>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Proposal: Conflict log history table for Logical Replication
Date: 2026-08-26 12:52:03
Message-ID: CALDaNm1FjRePcjUZpfqY+_S-CqCFZ3o_Fg0d5Sg_8diZPshekw@mail.gmail.com
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On Wed, 26 Aug 2026 at 16:15, shveta malik <shveta(dot)malik(at)gmail(dot)com> wrote:
>
> How the updates on tab_nothing and tab_nopk will go through if there
> are no RIs on these on pub? Do you mean we need to have RI on pub
> while no RI on sub?

Yes, the replica identity is required on the publisher side, but the
subscriber does not need to have a replica identity configured.

>Can you give exact steps if so?

I have attached a shell script that reproduces the issue.

Regards,
Vignesh

Attachment Content-Type Size
replica_identity_full_issue.sh text/x-sh 3.8 KB

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