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From: Manfred Koizar <mkoi-pg@aon.at>
To: Andre Schubert <andre.schubert@km3.de>
Cc: pgsql-sql@postgresql.org
Subject: Re: How to update
Date: Mon, 03 Jun 2002 15:08:46 +0200
Message-ID: <pfomfug81ska9234r96d3m58gppqimmift@4ax.com> (raw)
In-Reply-To: <20020603100028.38dd8a7e.andre.schubert@km3.de>
References: <20020603100028.38dd8a7e.andre.schubert@km3.de>

On Mon, 3 Jun 2002 10:00:28 +0200, Andre Schubert
<andre.schubert@km3.de> wrote:
>I tried this, but it update always one row in foo.
>
>update foo set inet=sum(bar.inet),local=sum(bar.local) where foo.ip = bar.ip;

Andre,
this worked in my test:

UPDATE foo
   SET inet=b.i, local=b.l
  FROM (SELECT ip, sum(inet) AS i, sum(local) AS l
          FROM bar
        GROUP BY ip) b
 WHERE foo.ip = b.ip;

Servus
 Manfred



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