| 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 |
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| 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
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