Re: [COMMITTERS] pgsql: Add trigonometric functions that work in degrees.

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, Noah Misch <noah(at)leadboat(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [COMMITTERS] pgsql: Add trigonometric functions that work in degrees.
Date: 2016-04-26 15:36:46
Message-ID: 8396.1461685006@sss.pgh.pa.us
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Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> On Tue, Apr 26, 2016 at 11:26 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> The next time somebody proposes that we can get exact results out of
>> floating-point arithmetic, I'm going to run away screaming.

> And you wonder why I avoid floating point variables like the plague...!

Float variables are fine for their intended use-case. The problem is
with trying to guarantee identical results across all platforms.

regards, tom lane

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