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Re: BUG #5150: math bug
- From: John R Pierce <pierce(at)hogranch(dot)com>
- To: PostgreSQL Bugs <pgsql-bugs(at)postgresql(dot)org>
- Subject: Re: BUG #5150: math bug
- Date: Fri, 30 Oct 2009 20:51:57 -0700
- Message-id: <4AEBB45D.90209@hogranch.com> <text/plain>
Tom Lane wrote:
There is special-purpose software out there that can compute exactly with rational numbers, but you aren't likely to find it embedded in any general-purpose tools like databases --- the use-case just isn't wide enough. One reason why not is that it'll still fall down on irrational numbers.
<nit>1/3 is a rational number. however, it is a repeating fraction when expressed in decimal.
</nit>
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