| From: | Andre Schubert <andre(at)km3(dot)de> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | achill(at)matrix(dot)gatewaynet(dot)com, pgsql-sql(at)postgresql(dot)org |
| Subject: | Re: Help on indexing timestamps |
| Date: | 2003-03-10 09:17:50 |
| Message-ID: | 20030310101750.77a1ae2f.andre@km3.de |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-sql |
On Fri, 07 Mar 2003 10:05:03 -0500
Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Andre Schubert <andre(at)km3(dot)de> writes:
> > Yes if i use BETWEEN and type in the dates by hand the query takes about 200ms with explain analyze.
> > I think these is a good performance.
> > But if i use now() instead of manually typed dates the query take about 1400ms :(
> > I thought the somebody posted to this list, that now() is a function that is not cached,
> > and thatswhy does not work pretty well with indexes.
>
> Update to 7.3, and that problem will go away.
>
What is the difference between 7.2 and 7.3 related to my problem ?
Thanks, as
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Hiroshi Inoue | 2003-03-10 09:20:33 | Re: Cursors and backwards scans and SCROLL |
| Previous Message | Tomasz Myrta | 2003-03-10 09:12:15 | Re: Help on indexing timestamps |