Re: Help on indexing timestamps - Mailing list pgsql-sql

From Andre Schubert
Subject Re: Help on indexing timestamps
Date
Msg-id 20030310101750.77a1ae2f.andre@km3.de
Whole thread Raw
In response to Re: Help on indexing timestamps  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: Help on indexing timestamps  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-sql
On Fri, 07 Mar 2003 10:05:03 -0500
Tom Lane <tgl@sss.pgh.pa.us> wrote:

> Andre Schubert <andre@km3.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


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