From: Oliver Elphick <olly@lfix.co.uk>
To: Bernhard Matthias Ertl <ertl@delos.dbs.informatik.uni-muenchen.de>
Cc: pgsql-sql@postgreSQL.org
Subject: Re: [SQL] inheritance
Date: Fri, 29 May 1998 20:58:13 +0200
Message-ID: <199805291958.UAA05205@linda.lfix.co.uk> (raw)
In-Reply-To: <ertl@delos.dbs.informatik.uni-muenchen.de> <Pine.HPP.3.95q.980529200313.23372B-100000@delos.dbs.informatik.uni-muenchen.de>
Bernhard Matthias Ertl wrote:
>Hi,
>
>only two short questions:
>+ does the postgresql 6.2.1 already support inheritance and
>+ if I have the tables cities and capitals (like in the tutorial), how can
>I add attributes of a city to a capital? Before the capital attributes,
>after the capital attributes or do I have to insert a capital citiy into
>the table city as well as into the table capital?
A descendant automatically inherits all attributes from its ancestor(s).
Try \d and see.
--
Oliver Elphick Oliver.Elphick@lfix.co.uk
Isle of Wight http://www.lfix.co.uk/oliver
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To: pgsql-sql@postgresql.org
Cc: olly@lfix.co.uk, ertl@delos.dbs.informatik.uni-muenchen.de
Subject: Re: [SQL] inheritance
In-Reply-To: <199805291958.UAA05205@linda.lfix.co.uk>
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