Re: Track replica origin progress for Rollback Prepared

From: Michael Paquier <michael(at)paquier(dot)xyz>
To: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
Cc: PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Nikhil Sontakke <nikhils(at)2ndquadrant(dot)com>, Ajin Cherian <itsajin(at)gmail(dot)com>
Subject: Re: Track replica origin progress for Rollback Prepared
Date: 2021-01-06 11:48:22
Message-ID: X/Wjhg4bWMlR3BbG@paquier.xyz
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On Tue, Jan 05, 2021 at 04:24:21PM +0530, Amit Kapila wrote:
> There are already tests [1] in one of the upcoming patches for logical
> decoding of 2PC which covers this code using which I have found this
> problem. So, I thought those would be sufficient. I have not checked
> the feasibility of using test_decoding because I thought adding more
> using test_decoding will unnecessarily duplicate the tests.

Hmm. This stuff does not check after replication origins even if it
stresses 2PC, so that looks incomplete when seen from here.

> How about something like "Dump transaction origin information only for
> abort prepared. We need this during recovery to update the replication
> origin progress."?

That sounds fine.
--
Michael

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