| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | John R Pierce <pierce(at)hogranch(dot)com> |
| Cc: | PostgreSQL Bugs <pgsql-bugs(at)postgresql(dot)org> |
| Subject: | Re: BUG #5150: math bug |
| Date: | 2009-10-31 13:10:56 |
| Message-ID: | 603c8f070910310610h547ec8d0n82643ad91165e6fd@mail.gmail.com |
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| Thread: | |
| Lists: | pgsql-bugs |
On Fri, Oct 30, 2009 at 11:51 PM, John R Pierce <pierce(at)hogranch(dot)com> wrote:
> 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>
That's true. Nobody said otherwise.
...Robert
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