From: Tom Lane <tgl@sss.pgh.pa.us>
To: Dean Rasheed <dean.a.rasheed@gmail.com>
cc: David Rowley <david.rowley@2ndquadrant.com>,
        Bruce Momjian <bruce@momjian.us>,
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        PostgreSQL-development <pgsql-hackers@postgresql.org>
Subject: Re: NaNs in numeric_power (was Re: Postgres 11 release notes)
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Comments: In-reply-to Dean Rasheed <dean.a.rasheed@gmail.com>
	message dated "Wed, 16 May 2018 08:15:33 +0100"
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Date: Wed, 16 May 2018 09:44:32 -0400
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Dean Rasheed <dean.a.rasheed@gmail.com> writes:
> On 15 May 2018 at 22:55, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Here's a proposed patch for that.

> In the case 1 ^ NaN = 1, what should the result scale be?

The result is exact, so I don't see a reason to be worried about its
scale.  Messing with the scale would also require expending even
more code on what is, in the end, a corner case that no users have
expressed concern about.

			regards, tom lane