Re: BUG #15307: Low numerical precision of (Co-) Variance

From: Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>
To: Madeleine Thompson <madeleineth(at)gmail(dot)com>
Cc: PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: BUG #15307: Low numerical precision of (Co-) Variance
Date: 2018-10-03 13:04:45
Message-ID: CAEZATCXtF7-Cxeb2-adzqDwqiShcahQX5rivwzckzq_x8=__3Q@mail.gmail.com
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On Thu, 27 Sep 2018 at 14:22, Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com> wrote:
> I'll post an updated patch in a while.
>

I finally got round to looking at this again. Here is an update, based
on the review comments.

The next question is whether or not to back-patch this. Although this
was reported as a bug, my inclination is to apply this to HEAD only,
based on the lack of prior complaints. That also matches our decision
for other similar patches, e.g., 7d9a4737c2.

Regards,
Dean

Attachment Content-Type Size
implement-float-aggs-using-youngs-cramer-v3.patch text/x-patch 37.1 KB

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