Re: Issue with logical replication slot during switchover

Alexander Kukushkin <cyberdemn@gmail.com>

From: Alexander Kukushkin <cyberdemn@gmail.com>

To: shveta malik <shveta.malik@gmail.com>

Cc: Fabrice Chapuis <fabrice636861@gmail.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>, Shlok Kyal <shlok.kyal.oss@gmail.com>

Date: 2025-10-28T13:03:00Z

Lists: pgsql-hackers

Attachments

0001-Continue-slots-synchronization-after-switchover.patch (text/x-patch) patch 0001

Hi all,

I don't think we really need to have allow_overwrite.
It is not possible to create logical slots on standby with failover=true,
therefore we can safely rely on failover being true to understand that at
some point this node was a primary and that this slot is supposed to be
synced.
Please see the patch attached.

Regards,
--
Alexander Kukushkin