Re: Proposal: Conflict log history table for Logical Replication
Dilip Kumar <dilipbalaut@gmail.com>
From: Dilip Kumar <dilipbalaut@gmail.com>
To: shveta malik <shveta.malik@gmail.com>
Cc: Nisha Moond <nisha.moond412@gmail.com>,
Peter Smith <smithpb2250@gmail.com>, vignesh C <vignesh21@gmail.com>, Amit Kapila <amit.kapila16@gmail.com>, Masahiko Sawada <sawada.mshk@gmail.com>, Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2026-04-28T04:20:13Z
Lists: pgsql-hackers
On Tue, Apr 28, 2026 at 9:46 AM shveta malik <shveta.malik@gmail.com> wrote: > > On Mon, Apr 27, 2026 at 9:51 PM Dilip Kumar <dilipbalaut@gmail.com> wrote: > > > > On Mon, Apr 27, 2026 at 3:08 PM shveta malik <shveta.malik@gmail.com> wrote: > > > > > > Few comments on 001 alone: > > > > > > > > > 1) > > > postgres=# create publication pub1 for all tables except (table temp_table); > > > ERROR: cannot specify relation "temp_table" in the publication EXCEPT clause > > > DETAIL: This operation is not supported for temporary tables. > > > > > > postgres=# create publication pub1 for all tables except (table > > > pg_conflict.pg_conflict_16395); > > > ERROR: cannot add relation "pg_conflict.pg_conflict_16395" to publication > > > DETAIL: This operation is not supported for conflict log tables. > > > > > > We shall change the error message for CLT in alignement with new > > > EXCEPT error message added recently. > > > > Yeah we should do that. I see the string we used in > > check_publication_add_relation() is non-schema qualified e.g. If you > > see the example below, the schemaname is omitted in the error message. > > Ideally, I would like this to be schema qualified but that can be > > fixed separately. > > I agree. Initially I thought it might not be needed for temp table > error. But this could be confusing for unlogged tables. I created 2 > tables: public.t1 (logged) and s1.t1 (unlogged), the error became > unclear for unlogged tables as it referred to t1 instead of s1.t1. > Yes, this can be done in a new thread. Right, I've created that as a base patch before making my changes, so I will post it shortly in a separate thread. -- Regards, Dilip Kumar Google
Commits
Same data as JSON:
GET /api/v1/messages/:b64id/commits
the thread's linked commits as JSON, with link sources.
API reference →
-
Allow logical replication conflicts to be logged to a table.
- a5918fddf10d master landed
-
Avoid orphaned objects dependencies
- 2fbb21170e90 19 (unreleased) cited