Re: Logical decoding on standby

From: Simon Riggs <simon(dot)riggs(at)2ndquadrant(dot)com>
To: Craig Ringer <craig(at)2ndquadrant(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, Thom Brown <thom(at)linux(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Petr Jelinek <petr(dot)jelinek(at)2ndquadrant(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Logical decoding on standby
Date: 2017-03-22 16:13:58
Message-ID: CANP8+jJcmDj5i5iR8TOUrzV-OM+P=j64my+PgkkLL_N8gkxmCw@mail.gmail.com
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On 22 March 2017 at 08:53, Craig Ringer <craig(at)2ndquadrant(dot)com> wrote:

> I'm splitting up the rest of the decoding on standby patch set with
> the goal of getting minimal functionality for creating and managing
> slots on standbys in, so we can maintain slots on standbys and use
> them when the standby is promoted to master.
>
> The first, to send catalog_xmin separately to the global xmin on
> hot_standby_feedback and store it in the upstream physical slot's
> catalog_xmin, is attached.
>
> These are extracted directly from the logical decoding on standby
> patch, with comments by Petr and Andres made re the relevant code
> addressed.

I've reduced your two patches back to one with a smaller blast radius.

I'll commit this tomorrow morning, barring objections.

--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Attachment Content-Type Size
Report-catalog_xmin-separately-to-xmin-in-hot-standb.v2.patch application/octet-stream 14.8 KB

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