Re: PATCH: logical_work_mem and logical streaming of large in-progress transactions

From: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
To: Dilip Kumar <dilipbalaut(at)gmail(dot)com>
Cc: Erik Rijkers <er(at)xs4all(dot)nl>, Kuntal Ghosh <kuntalghosh(dot)2007(at)gmail(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: PATCH: logical_work_mem and logical streaming of large in-progress transactions
Date: 2020-07-24 11:35:02
Message-ID: CAA4eK1JRwzq0fXd88bO=P8NRQcrTWCiZK1JEoxGw1Fn5CrTLLQ@mail.gmail.com
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On Thu, Jul 23, 2020 at 11:31 AM Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
>
> On Wed, Jul 22, 2020 at 4:55 PM Dilip Kumar <dilipbalaut(at)gmail(dot)com> wrote:
> >
> > You are right. I have changed it.
> >
>
> Thanks, I have pushed the second patch in this series which is
> 0001-WAL-Log-invalidations-at-command-end-with-wal_le in your latest
> patch. I will continue working on remaining patches.
>

I have reviewed and made a number of changes in the next patch which
extends the logical decoding output plugin API with stream methods.
(v41-0001-Extend-the-logical-decoding-output-plugin-API-wi).

1. I think we need handling of include_xids and include_timestamp but
not skip_empty_xacts in the new APIs, as of now, none of the options
were respected. We need 'include_xids' handling because we need to
include xid with stream messages and similarly 'include_timestamp' for
stream commit messages. OTOH, I think we never use streaming mode for
empty xacts, so we don't need to bother about skip_empty_xacts in
streaming APIs.
2. Then I made a number of changes in documentation, comments, and
other cosmetic changes.

Kindly review/test and let me know if you see any problems with the
above changes.

--
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com

Attachment Content-Type Size
v41.tar application/x-tar 250.5 KB

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