Horton

Re: Proposal: Conflict log history table for Logical Replication

Amit Kapila <amit.kapila16@gmail.com>

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From: Amit Kapila <amit.kapila16@gmail.com>
To: shveta malik <shveta.malik@gmail.com>
Cc: vignesh C <vignesh21@gmail.com>, Dilip Kumar <dilipbalaut@gmail.com>, Nisha Moond <nisha.moond412@gmail.com>, Peter Smith <smithpb2250@gmail.com>, Masahiko Sawada <sawada.mshk@gmail.com>, Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>, shveta malik <shvetamalik@gmail.com>
Date: 2026-05-12T09:21:15Z
Lists: pgsql-hackers 
On Tue, May 12, 2026 at 12:00 PM shveta malik <shveta.malik@gmail.com> wrote:
>
> I had earlier suggested a timestamp column (pt 3 at [1]) to record
> conflict-occurence time (mainly 'conflict_logged_at' column) in CLT
> but the idea was kept on hold awaiting more feedback. Now we can
> revisit this.
>
> I feel 'conflict_logged_at' could be more beneficial because, going
> forward (based on feedback), we may range-partition this table on that
> field which may form as basis of historical data purge. I also
> suggested this in [2] (see 'That said, irrespective of what we
> decide') . Such a field could be basis of purging mechanism.
>

Fair enough. We can extend the table with this field after more
discussion, so it will be better to pick up this discussion once the
base feature is committed.

-- 
With Regards,
Amit Kapila.