Re: delta relations in AFTER triggers

From: Craig Ringer <craig(at)2ndquadrant(dot)com>
To: David Fetter <david(at)fetter(dot)org>
Cc: Kevin Grittner <kgrittn(at)gmail(dot)com>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Kevin Grittner <kgrittn(at)ymail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Amit Khandekar <amit(dot)khandekar(at)enterprisedb(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: delta relations in AFTER triggers
Date: 2017-04-03 01:34:26
Message-ID: CAMsr+YGFvPzkh8tuaSB1SDfgHHUr1i8NE5vqOvaHLyH+ixFdAQ@mail.gmail.com
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On 1 April 2017 at 02:29, David Fetter <david(at)fetter(dot)org> wrote:
> On Fri, Mar 31, 2017 at 12:20:51PM -0500, Kevin Grittner wrote:
>> On Thu, Mar 30, 2017 at 11:51 AM, Kevin Grittner <kgrittn(at)gmail(dot)com> wrote:
>>
>> > New version attached. It needs some of these problem cases added
>> > to the testing, and a mention in the docs that only C and plpgsql
>> > triggers can use the feature so far. I'll add those tomorrow.
>>
>> Done and attached.
>>
>> Now the question is, should it be pushed?
>
> Yes. Among other things, that'll get it buildfarm tested and give
> people interested in other PLs better visibility.
>
> That, and I suspect that people will start using this infrastructure
> for some very cool projects.

Yeah, I was excited to see this committed. It practically begs to be
used for plpgsql TABLE valued variables backed by tuplestores.

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

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