From: Gavin Flower <GavinFlower@archidevsys.co.nz>
To: pgsql-docs@postgresql.org
Subject: pg 9.1beta3 typo in 7.2.3
Date: Fri, 15 Jul 2011 20:41:31 +1200
Message-ID: <4E1FFD3B.5090708@archidevsys.co.nz> (raw)
I think that there is a typo in the paragraph: 'x' used instead of 'y'
in 'GROUP BY'.
postgres-9.1beta3/share/doc/html/queries-table-expressions.html
7.2.3. The GROUP BY and HAVING Clauses
[...]
=> SELECT x FROM test1 GROUP BY x;
x
---
a
b
c
(3 rows)
In the second query, we could not have written SELECT * FROM test1 GROUP
BY x, because there is no single value for the column y that could be
associated with each group. The grouped-by columns can be referenced in
the select list since they have a single value in each group.
[...]
The paragraph should read "...SELECT * FROM test1 GROUP BY y..."
Cheers,
Gavin
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To: pgsql-docs@postgresql.org
Cc: GavinFlower@archidevsys.co.nz
Subject: Re: pg 9.1beta3 typo in 7.2.3
In-Reply-To: <4E1FFD3B.5090708@archidevsys.co.nz>
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