From: Andreas Kretschmer <akretschmer@spamfence.net>
To: pgsql-sql@postgresql.org
Subject: Re: union with count?
Date: Wed, 28 Mar 2007 18:19:06 +0200
Message-ID: <20070328161906.GA17735@KanotixBox> (raw)
In-Reply-To: <460A8865.3070005@fmed.uba.ar>
References: <460A75ED.6070501@fmed.uba.ar>
<20070328142444.GA20168@a-kretschmer.de>
<460A8865.3070005@fmed.uba.ar>
Gerardo Herzig <gherzig@fmed.uba.ar> schrieb:
> Thanks! But now i have another problem related with count():
>
> select page_id, word, word_position, count(page_id) from (select * from
> search_word('word1', 'table1') union search_word('word2', 'table2')) foo
> group by page_id;
>
> and gives me "foo.word must appear in GROUP clause or be used in an
> aggregate function"
>
> And i want to group by page_id only, because that is what i need to count.
> Tips here?
You can't aggregate without grouping the not-aggregated columns.
Expand your 'group by' with word and word_position.
Andreas
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect. (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly." (unknow)
Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°
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To: pgsql-sql@postgresql.org
Cc: akretschmer@spamfence.net
Subject: Re: union with count?
In-Reply-To: <20070328161906.GA17735@KanotixBox>
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