| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
| Cc: | Nikhil Sontakke <nikhils(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>, Petr Jelinek <petr(dot)jelinek(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: | 2018-03-29 22:24:41 |
| Message-ID: | 20180329222441.xxo2zxkjydpgjs4n@alap3.anarazel.de |
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| Lists: | pgsql-hackers |
Hi,
On 2018-03-30 00:23:00 +0200, Tomas Vondra wrote:
> On 03/29/2018 11:58 PM, Andres Freund wrote:
> > FWIW, for me that's ground to not accept the feature. Burdening output
> > plugins with this will make their development painful (because they'll
> > have to adapt regularly) and correctness doubful (there's nothing
> > checking for the lock being skipped). Another way needs to be found.
> >
>
> The lack of docs/comments, or the fact that the decoding plugins would
> need to do some lock/unlock operation?
The latter.
> I agree with the former, of course - docs are a must. I disagree with
> the latter, though - there have been about no proposals how to do it
> without the locking. If there are, I'd like to hear about it.
I don't care. Either another solution needs to be found, or the locking
needs to be automatically performed when necessary.
Greetings,
Andres Freund
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