From: | Andres Freund <andres(at)anarazel(dot)de> |
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To: | Petr Jelinek <petr(dot)jelinek(at)2ndquadrant(dot)com> |
Cc: | Nikhil Sontakke <nikhil(dot)sontakke(at)2ndquadrant(dot)com>, pgsql-hackers(at)lists(dot)postgresql(dot)org, Nikhil Sontakke <nikhils(at)2ndquadrant(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Craig Ringer <craig(at)2ndquadrant(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Sokolov Yura <y(dot)sokolov(at)postgrespro(dot)ru>, Stas Kelvich <s(dot)kelvich(at)postgrespro(dot)ru>, Dmitry Dolgov <9erthalion6(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Robert Haas <robertmhaas(at)gmail(dot)com> |
Subject: | Re: [HACKERS] logical decoding of two-phase transactions |
Date: | 2018-03-30 19:07:14 |
Message-ID: | 20180330190714.ykicf7eqoqhegtrs@alap3.anarazel.de |
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Lists: | pgsql-hackers |
Hi,
On 2018-03-30 21:05:29 +0200, Petr Jelinek wrote:
> You mean, if we detect abort in the write callback, set something in the
> context which will make all the future writes noop until it's reset
> again after we yield back to the logical decoding?
Something like that, yea. I *think* doing it via signalling is going to
be a more efficient design than constantly checking, but I've not
thought it fully through.
> That's not the most beautiful design I've seen, but I'd be okay with
> that, it seems like it would solve all the issues we have with this.
Yea, it's not too pretty, but seems pragmatic.
Greetings,
Andres Freund
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