From: Petr Jelinek <petr.jelinek@2ndquadrant.com>
To: Nikhil Sontakke <nikhils@2ndquadrant.com>
To: Andres Freund <andres@anarazel.de>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Tomas Vondra <tomas.vondra@2ndquadrant.com>
Cc: David Steele <david@pgmasters.net>
Cc: Andrew Dunstan <andrew.dunstan@2ndquadrant.com>
Cc: Simon Riggs <simon@2ndquadrant.com>
Cc: Craig Ringer <craig@2ndquadrant.com>
Cc: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Cc: Sokolov Yura <y.sokolov@postgrespro.ru>
Cc: Stas Kelvich <s.kelvich@postgrespro.ru>
Cc: Dmitry Dolgov <9erthalion6@gmail.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Masahiko Sawada <sawada.mshk@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Subject: Re: [HACKERS] logical decoding of two-phase transactions
Date: Wed, 1 Aug 2018 21:55:18 +0200
Message-ID: <87ab8e6e-ae35-154d-e3b5-3d8c83ea1eff@2ndquadrant.com> (raw)
In-Reply-To: <CAMGcDxeqEpWj3fTXwqhSwBdXd2RS9jzwWscO-XbeCfso6ts3+Q@mail.gmail.com>
References: <CAMGcDxeqEpWj3fTXwqhSwBdXd2RS9jzwWscO-XbeCfso6ts3+Q@mail.gmail.com>
On 01/08/18 16:00, Nikhil Sontakke wrote:
>
>> I was wondering if anything else would be needed for user-defined
>> catalog tables..
>>
>
> We don't need to do anything else for user-defined catalog tables
> since they will also get accessed via the systable_* scan APIs.
>
They can be, but currently they might not be. So this requires at least
big fat warning in docs and description on how to access user catalogs
from plugins correctly (ie to always use systable_* API on them). It
would be nice if we could check for it in Assert builds at least.
--
Petr Jelinek http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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To: pgsql-hackers@postgresql.org
Cc: petr.jelinek@2ndquadrant.com, nikhils@2ndquadrant.com, andres@anarazel.de, robertmhaas@gmail.com, tomas.vondra@2ndquadrant.com, david@pgmasters.net, andrew.dunstan@2ndquadrant.com, simon@2ndquadrant.com, craig@2ndquadrant.com, peter.eisentraut@2ndquadrant.com, y.sokolov@postgrespro.ru, s.kelvich@postgrespro.ru, 9erthalion6@gmail.com, tgl@sss.pgh.pa.us, sawada.mshk@gmail.com
Subject: Re: [HACKERS] logical decoding of two-phase transactions
In-Reply-To: <87ab8e6e-ae35-154d-e3b5-3d8c83ea1eff@2ndquadrant.com>
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