Thread: pgsql: Fix partition table's REPLICA IDENTITY checking on the subscribe

pgsql: Fix partition table's REPLICA IDENTITY checking on the subscribe

From
Amit Kapila
Date:
Fix partition table's REPLICA IDENTITY checking on the subscriber.

In logical replication, we will check if the target table on the
subscriber is updatable by comparing the replica identity of the table on
the publisher with the table on the subscriber. When the target table is a
partitioned table, we only check its replica identity but not for the
partition tables. This leads to assertion failure while applying changes
for update/delete as we expect those to succeed only when the
corresponding partition table has a primary key or has a replica
identity defined.

Fix it by checking the replica identity of the partition table while
applying changes.

Reported-by: Shi Yu
Author: Shi Yu, Hou Zhijie
Reviewed-by: Amit Langote, Amit Kapila
Backpatch-through: 13, where it was introduced
Discussion: https://postgr.es/m/OSZPR01MB6310F46CD425A967E4AEF736FDA49@OSZPR01MB6310.jpnprd01.prod.outlook.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/26b3455afaa968fb48d0e468528d79de56624559

Modified Files
--------------
src/backend/replication/logical/relation.c | 115 +++++++++++++++++------------
src/backend/replication/logical/worker.c   |  27 +++++--
src/test/subscription/t/013_partition.pl   |  14 ++++
3 files changed, 101 insertions(+), 55 deletions(-)


Amit Kapila <akapila@postgresql.org> writes:
> Fix partition table's REPLICA IDENTITY checking on the subscriber.

prion seems not too happy with this --- probably you could reproduce
the failure with -DRELCACHE_FORCE_RELEASE -DCATCACHE_FORCE_RELEASE.

            regards, tom lane



On Tue, Jun 21, 2022 at 9:42 AM Tom Lane <tgl@sss.pgh.pa.us> wrote:
>
> Amit Kapila <akapila@postgresql.org> writes:
> > Fix partition table's REPLICA IDENTITY checking on the subscriber.
>
> prion seems not too happy with this --- probably you could reproduce
> the failure with -DRELCACHE_FORCE_RELEASE -DCATCACHE_FORCE_RELEASE.
>

Okay, I'll look into it.

-- 
With Regards,
Amit Kapila.



On Tue, Jun 21, 2022 at 9:57 AM Amit Kapila <amit.kapila16@gmail.com> wrote:
>
> On Tue, Jun 21, 2022 at 9:42 AM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> >
> > Amit Kapila <akapila@postgresql.org> writes:
> > > Fix partition table's REPLICA IDENTITY checking on the subscriber.
> >
> > prion seems not too happy with this --- probably you could reproduce
> > the failure with -DRELCACHE_FORCE_RELEASE -DCATCACHE_FORCE_RELEASE.
> >
>
> Okay, I'll look into it.
>

I have pushed a fix for this and prion has passed in its latest run.

-- 
With Regards,
Amit Kapila.