Re: Built-in plugin for logical decoding output

From: Petr Jelinek <petr(dot)jelinek(at)2ndquadrant(dot)com>
To: Alvaro Hernandez <aht(at)ongres(dot)com>, Craig Ringer <craig(at)2ndquadrant(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, Euler Taveira <euler(at)timbira(dot)com(dot)br>, Gregory Brail <gregbrail(at)google(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Built-in plugin for logical decoding output
Date: 2017-09-26 09:57:36
Message-ID: d772a0e8-2dac-8101-c8e8-3122b0f41c9a@2ndquadrant.com
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On 26/09/17 09:26, Alvaro Hernandez wrote:
> On 26/09/17 10:03, Craig Ringer wrote:
>> On 26 September 2017 at 14:08, Alvaro Hernandez <aht(at)ongres(dot)com
>> <mailto:aht(at)ongres(dot)com>> wrote:
>> - If you stick to in-core plugins, then you need to support at
>> least three different output formats if you want to support 9.4+:
>> test_decoding (and pray it works!), pgoutput, and the "new"
>> in-core plugin that was proposed at the beginning of this thread,
>> if that would see the light.
>>
>>
>> The only practical way will IMO be to have whatever new plugin it also
>> have an out-of-core version maintained for older Pg versions, where it
>> can be installed.
>>   
>>
>> But only in-core plugins help for general-purpose solutions.
>>
>>
>> I still don't agree there. If there's enough need/interest/adoption
>> you can get cloud vendors on board, they'll feel the customer
>> pressure. It's not our job to create that pressure and do their work
>> for them.
>
>     Don't want to get into a loop, but as I said before it's
> chicken-and-egg. But nobody is asking core to do their work. As much as
> I love it, I think logical decoding is a bit half-baked until there is a
> single, quality, in-core plugin, as it discourages its usage, because of
> the reasons I stated.
>

Well, in that case it's all good as PG10 has that.

--
Petr Jelinek http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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