From: Herouth Maoz <herouth@oumail.openu.ac.il>
To: Michael Yeung <michaely@alphanet.net.au>
To: pgsql SQL <pgsql-sql@postgreSQL.org>
Subject: Re: [SQL] Order by
Date: Wed, 2 Jun 1999 12:34:42 +0300
Message-ID: <l03130302b37aaa3d3da3@[147.233.159.109]> (raw)
In-Reply-To: <000d01beac91$92bdf2f0$0c01a8c0@quay>
At 03:48 +0300 on 02/06/1999, Michael Yeung wrote:
> Hi all,
>
> Is anyone know that if we allow order-by clause in the view structure.
> If not, how can we take the ordering of the UNION ALL in 2 different bags ?
Correct me if I'm wrong, but ORDER BY shoud not be part of a view, in the
same way it is not a part of a table. A table is defined as an unordered
collection of tuples. In any given query, you can define the order of the
tuples returned. But the table itself is not ordered.
A view should look to the user just like a table. The order of the tuples
is part of the query, not part of the table, and not part of the view.
Herouth
--
Herouth Maoz, Internet developer.
Open University of Israel - Telem project
http://telem.openu.ac.il/~herutma
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To: pgsql-sql@postgresql.org
Cc: herouth@oumail.openu.ac.il, michaely@alphanet.net.au
Subject: Re: [SQL] Order by
In-Reply-To: <l03130302b37aaa3d3da3@[147.233.159.109]>
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