Re: [COMMITTERS] pgsql: Add trigonometric functions that work in degrees. - Mailing list pgsql-hackers

From Tom Lane
Subject Re: [COMMITTERS] pgsql: Add trigonometric functions that work in degrees.
Date
Msg-id 8396.1461685006@sss.pgh.pa.us
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In response to Re: [COMMITTERS] pgsql: Add trigonometric functions that work in degrees.  (Robert Haas <robertmhaas@gmail.com>)
Responses Re: [COMMITTERS] pgsql: Add trigonometric functions that work in degrees.  (Robert Haas <robertmhaas@gmail.com>)
List pgsql-hackers
Robert Haas <robertmhaas@gmail.com> writes:
> On Tue, Apr 26, 2016 at 11:26 AM, Tom Lane <tgl@sss.pgh.pa.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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