Re: [HACKERS] Decimal64 and Decimal128

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От Thomas Munro
Тема Re: [HACKERS] Decimal64 and Decimal128
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Msg-id CAEepm=3nDEeR=qOs-LzCwiNycs6N7Qbkj=wTqkzTva0XYwJf7g@mail.gmail.com
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Ответ на Re: [HACKERS] Decimal64 and Decimal128  (Thomas Munro <thomas.munro@enterprisedb.com>)
Ответы Re: [HACKERS] Decimal64 and Decimal128  (David Rowley <david.rowley@2ndquadrant.com>)
Список pgsql-hackers
On Fri, Jun 16, 2017 at 9:42 AM Thomas Munro
<thomas.munro@enterprisedb.com> wrote:
> On Fri, Sep 25, 2015 at 5:06 PM, Pavel Stehule <pavel.stehule@gmail.com> wrote:
> > 2015-09-25 0:25 GMT+02:00 Jim Nasby <Jim.Nasby@bluetreble.com>:
> >> On 9/24/15 3:35 PM, Peter Geoghegan wrote:
> >>>
> >>> I would worry about the implicit casts you've added. They might cause
> >>> problems.
> >>
> >>
> >> Given the cycle created between numeric->decimal and decimal->numeric, I
> >> can pretty much guarantee they will. In any case, I don't think implicit
> >> casting from numeric->decimal is a good idea since it can overflow. I'm not
> >> sure that the other direction is safe either... I can't remember offhand if
> >> casting correctly obeys typmod or not.
> >>
> >> BTW, have you talked to Pavel about making these changes to his code?
> >> Seems a shame to needlessly fork it. :/
> >
> >
> > yes, he talked with me, and I gave a agreement to continue/enhance/fork this
> > project how will be necessary
>
> Bumping this ancient thread to say that DECFLOAT appears to have
> landed in the SQL standard.  I haven't looked at SQL:2016 myself by I
> just saw this on Markus Winand's Modern SQL blog:

... and it has just been voted into the next revision of the C language:

https://gustedt.wordpress.com/2018/11/12/c2x/

-- 
Thomas Munro
http://www.enterprisedb.com


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