Re: onlyvalue aggregate (was: First Aggregate Funtion?)

From: Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>
To: Marko Tiikkaja <marko(at)joh(dot)to>
Cc: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: onlyvalue aggregate (was: First Aggregate Funtion?)
Date: 2015-11-02 08:32:30
Message-ID: CAEZATCWEYCScz81mTAAJbw=VCKY78cbbMehNFAeov5xDR3v7yQ@mail.gmail.com
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On 28 October 2015 at 16:50, Marko Tiikkaja <marko(at)joh(dot)to> wrote:
> Hi,
>
> Here's a patch for the aggregate function outlined by Corey Huinker in
> CADkLM=foA_oC_Ri23F9PbfLnfwXFbC3Lt8bBzRu3=CB77G9_qw(at)mail(dot)gmail(dot)com .

+1. I've wanted something like this a few times. Of the names
suggested so far, I think I prefer "single_value", and yes I think it
should work with NULLs.

Regards,
Dean

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