| From: | Martijn van Oosterhout <kleptog(at)svana(dot)org> |
|---|---|
| To: | "Florian G(dot) Pflug" <fgp(at)phlo(dot)org> |
| Cc: | Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Native type for storing fractions (e.g 1/3)? |
| Date: | 2007-03-15 20:26:13 |
| Message-ID: | 20070315202613.GB9067@svana.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
On Thu, Mar 15, 2007 at 09:11:23PM +0100, Florian G. Pflug wrote:
> You'd need a type for large integers first - otherwise your
> ty_fraction will be quite limited. I think numeric could be
> used for that, though I don't know if numeric guarantees that
> at least the operators +,-,* and modulo return exact results
> (Don't loose digits). But even if they do, using some existing
> library for arbitrary sized integers would probably lead to
> better performance.
Numeric is an arbitrary sized number library, so using that would be
smart.
Have a nice day,
--
Martijn van Oosterhout <kleptog(at)svana(dot)org> http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Webb Sprague | 2007-03-15 20:27:16 | Re: simple coordinate system |
| Previous Message | Robert Treat | 2007-03-15 20:20:34 | Re: [SQL] PostgreSQL to Oracle |