| From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
|---|---|
| To: | Theo Schlossnagle <jesus(at)omniti(dot)com> |
| Cc: | PostgreSQL-development Development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: double and numeric conversion |
| Date: | 2010-03-01 20:58:44 |
| Message-ID: | 4B8C2A84.5070506@dunslane.net |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Theo Schlossnagle wrote:
> Hello all,
>
> I'm writing some extension and I have a hot code path that has a lot of double (C type) data and needs to output NUMERIC tuple data. The current methods I can find in the code to convert sprintf the double to a buffer and then invoke the numeric_in function on them. I've profile my stuff and I'm spending (wasting) all my time in that conversion. Is there a more efficient method of converting a double into a postgres numeric value?
>
>
>
float8_numeric() ? Although it uses sprintf too, by the look of it.
cheers
andrew
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tom Lane | 2010-03-01 21:29:56 | Re: function side effects |
| Previous Message | Pavel Stehule | 2010-03-01 20:51:25 | Re: Plans for 9.1, Grouping Sets, disabling multiqueries, contrib module for string, plpgpsm, preload dictionaries |