Horton

Re: logical replication empty transactions

Ajin Cherian <itsajin@gmail.com>

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From: Ajin Cherian <itsajin@gmail.com>
To: Michael Paquier <michael@paquier.xyz>
Cc: Rahila Syed <rahila.syed@2ndquadrant.com>, Euler Taveira <euler@timbira.com.br>, Amit Kapila <amit.kapila16@gmail.com>, Dilip Kumar <dilipbalaut@gmail.com>, Jeff Janes <jeff.janes@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>, Craig Ringer <craig@2ndquadrant.com>
Date: 2021-04-15T06:38:40Z
Lists: pgsql-hackers

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On Thu, Apr 15, 2021 at 1:29 PM Ajin Cherian <itsajin@gmail.com> wrote:

>
> I've rebased the patch and made changes so that the patch supports
> "streaming in-progress transactions" and handling of logical decoding
> messages (transactional and non-transactional).
> I see that this patch not only makes sure that empty transactions are not
> sent but also does call OutputPluginUpdateProgress when an empty
> transaction is not sent, as a result the confirmed_flush_lsn is kept
> moving. I also see no hangs when synchronous_standby is configured.
> Do let me know your thoughts on this patch.
>
>
Removed some debug logs and typos.

regards,
Ajin Cherian
Fujitsu Australia

Commits

  1. Skip empty transactions for logical replication.

  2. Add decoding of sequences to built-in replication

  3. Allow specifying row filters for logical replication of tables.