From: Chad Thompson <chad@weblinkservices.com>
To: Dan Langille <dan@langille.org>
Cc: pgsql-sql@postgresql.org
Subject: Re: 7.3 "group by" issue
Date: Fri, 21 Feb 2003 13:00:55 -0700
Message-ID: <04f401c2d9e3$f24c1070$32021aac@chad> (raw)
References: <3E5628E4.16251.1E808E0F@localhost>
> On 21 Feb 2003 at 19:18, Gaetano Mendola wrote:
>
> > > Hi folks,
> > >
> > > This query:
> > >
> > > SELECT element_id as wle_element_id, COUNT(watch_list_id)
> > > FROM watch_list JOIN watch_list_element
> > > ON watch_list.id = watch_list_element.watch_list_id
> > > AND watch_list.user_id = 1
> > > GROUP BY watch_list_element.element_id
> >
> > Try:
> >
> > SELECT element_id as wle_element_id, COUNT(watch_list_id)
> > FROM watch_list JOIN watch_list_element
> > ON watch_list.id = watch_list_element.watch_list_id
> > WHERE
> > watch_list.user_id = 1
> > GROUP BY watch_list_element.element_id
>
> ERROR: Attribute unnamed_join.element_id must be GROUPed or used in
> an aggregate function
>
I think that the wrong problem was solved here. Items in the order by
clause must be in the target list.
heres what it says in the docs
*The ORDER BY clause specifies the sort order:
*SELECT select_list
* FROM table_expression
* ORDER BY column1 [ASC | DESC] [, column2 [ASC | DESC] ...]
*column1, etc., refer to select list columns. These can be either the output
name of a column (see Section 4.3.2) or the number of a column. Some
examples:
Note that "column1, etc., refer to select list"
HTH
Chad
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To: pgsql-sql@postgresql.org
Cc: chad@weblinkservices.com, dan@langille.org
Subject: Re: 7.3 "group by" issue
In-Reply-To: <04f401c2d9e3$f24c1070$32021aac@chad>
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