i think this work
select id,count from table group by to_char(date,'MM')
--- On Wed, 7/16/08, A. Kretschmer <andreas.kretschmer@schollglas.com> wrote:
> From: A. Kretschmer <andreas.kretschmer@schollglas.com>
> Subject: Re: [SQL] How to GROUP results BY month
> To: pgsql-sql@postgresql.org
> Date: Wednesday, July 16, 2008, 5:39 AM
> am Tue, dem 15.07.2008, um 18:15:07 -0700 mailte Mark
> Roberts folgendes:
> >
> > On Tue, 2008-07-15 at 14:31 +0200, A. Kretschmer
> wrote:
> > > am Tue, dem 15.07.2008, um 13:12:39 +0100 mailte
> Oliveiros Cristina folgendes:
> > > > Howdy, all,
> > > >
> > > > I have a problem.
> > > >
> > > > I have a table which one of the fields is of
> type date.
> > > >
> > > > I need to obtain the totals of the other
> fields in a by-month basis
> > > > IS there any easy way to do this using the
> GROUP BY or any other construct?
> > >
> > > ... group by extract(month from date)
> > >
> > >
> > > Andreas
> >
> > It's worth noting that extract(month from
> timestamp) returns a month_no, and thus will not be
> suitable for grouping queries that span years.
>
> Right, but that wasn't the question...
>
>
> Andreas
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> Andreas Kretschmer
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