On my box:
processdata=# select version();
version
---------------------------------------------------------------
PostgreSQL 7.1.3 on i686-pc-linux-gnu, compiled by
GCC 2.95.4
(1 row)
You can do something like this:
SELECT dt, dt::time FROM prod_journal WHERE dt::time
BETWEEN '00:00:00' AND '08:30:00';
dt in this case is a timestamp field, and the results
are what you would expect.
Take care,
Jason
--- Justin Clift <justin@postgresql.org> wrote:
> Hi,
>
> You could do something along the lines of :
>
> SELECT foo, bar FROM baz WHERE date_part('hour',
> foo) > 0 AND
> date_part('hour', foo) < 8;
>
> Simple, but effective. Only works for whole hours
> like in your example
> though.
>
> :-)
>
> Regards and best wishes,
>
> Justin Clift
>
>
> Cefull Lo wrote:
> >
> > given a timestamp data, e.g. 2001-08-18
> 06:01:23+08
> > How can I check that is it lie between 00:00:00
> and 08:00:00 and ignore the
> > date?
> >
> > --
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