Re: exp() versus the POSIX standard

From: Emre Hasegeli <emre(at)hasegeli(dot)com>
To: Darafei Komяpa Praliaskouski <me(at)komzpa(dot)net>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: exp() versus the POSIX standard
Date: 2020-06-12 15:34:15
Message-ID: CAE2gYzzKU7Xx9dpHV=3P94e2p6nF2JwZfCCDgMxuPrT37UxCRA@mail.gmail.com
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> No, no kind of GUC switch is needed. Just drop underflow/overflow checks. You'll get 0 or Infinity in expected places, and infinities are okay since 2007.

This is out of scope of this thread. I am not sure opening it to
discussion on another thread would yield any result. Experienced
developers like Tom appear to be in agreement of us needing to protect
users from oddities of floating point numbers. (I am not.)

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