| From: | Michael Fuhr <mike(at)fuhr(dot)org> |
|---|---|
| To: | Bjørn T Johansen <btj(at)havleik(dot)no> |
| Cc: | pgsql-general <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: Convert time to millisec? |
| Date: | 2006-08-28 14:32:49 |
| Message-ID: | 20060828143249.GA4775@winnie.fuhr.org |
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| Lists: | pgsql-general |
On Mon, Aug 28, 2006 at 04:18:12PM +0200, Bjørn T Johansen wrote:
> On Mon, 28 Aug 2006 07:20:02 -0600 Michael Fuhr <mike(at)fuhr(dot)org> wrote:
> > select extract(epoch from sum(Til - Fra)) * 1000.0 ...
>
> Do you know if this is supported on older versions of PostgreSQL
> as well? (eg. 7.4.x)
Yes, it is; I think it's worked since ancient times. See "Date/Time
Functions and Operators" in the "Functions and Operators" chapter
of the documentation for whatever versions you need. Here's a link
for 7.4:
http://www.postgresql.org/docs/7.4/interactive/functions-datetime.html
--
Michael Fuhr
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