From: Achilleas Mantzios <achill@matrix.gatewaynet.com>
To: Michael Landin Hostbaek <mich@the-lab.org>
To: A. Kretschmer <andreas.kretschmer@schollglas.com>
To: pgsql-sql@postgresql.org
Subject: Re: Where clause
Date: Tue, 26 Jun 2007 13:31:03 +0300
Message-ID: <200706261331.04033.achill@matrix.gatewaynet.com> (raw)
In-Reply-To: <20070626094453.GH67974@mich2.itxmarket.com>
References: <20070626082405.GA67974@mich2.itxmarket.com>
<20070626090140.GB28610@a-kretschmer.de>
<20070626094453.GH67974@mich2.itxmarket.com>
Óôéò Ôñßôç 26 Éïýíéïò 2007 12:44, ï/ç Michael Landin Hostbaek Ýãñáøå:
> A. Kretschmer (andreas.kretschmer) writes:
> > *untested*
> >
> > select cid, sum(case when click = true then 1 else 0 end), sum(case when
> > view = true then 1 else 0 end) from ...
>
> Thanks, but I need the DISTINCT contactid - I don't want the same
> contactid counted twice.
>
Something like
SELECT distinct cid,(select count(distinct t1.contactid) from tracking t1
where t1.view and t1.cid=tglob.cid) as countviews,(select count(distinct
t2.contactid) from tracking t2 where t2.click and t2.cid=tglob.cid) as
countclicks from tracking tglob;
?
> Mike
>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: explain analyze is your friend
--
Achilleas Mantzios
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To: pgsql-sql@postgresql.org
Cc: achill@matrix.gatewaynet.com, mich@the-lab.org, andreas.kretschmer@schollglas.com
Subject: Re: Where clause
In-Reply-To: <200706261331.04033.achill@matrix.gatewaynet.com>
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