From: | Michael Paesold <mpaesold(at)gmx(dot)at> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | pgsql-patches(at)postgreSQL(dot)org, Gregory Stark <stark(at)enterprisedb(dot)com> |
Subject: | Re: WIP: rewrite numeric division |
Date: | 2007-06-19 17:37:40 |
Message-ID: | 46781464.3080909@gmx.at |
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Lists: | pgsql-patches |
Tom Lane wrote:
> I wrote:
...
> Now it's unlikely that real-world applications are going to be as
> dependent on the speed of div_var for long inputs as numeric_big is.
> And getting the right answer has to take priority over speed anyway.
> Still this is a bit annoying. Anyone see a way to speed it up, or
> have another approach?
>
> regards, tom lane
+1 for the change from me.
We use PostgreSQL for financial accounting stuff, including plpgsql
triggers and functions etc. And we use numeric for all that. I always
thought that numeric division was exact! :-) I never saw problem,
perhaps because we round to very few digits, but well.
Please apply this patch. I can accept the performance drop, as long as
there won't be bad surprises with correctness.
Best Regards
Michael Paesold
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