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From: "Marc Dugger" <mdugger@sunsetdirect.com>
To: "'Apache Torque Users List'" <torque-user@db.apache.org>
Subject: RE: inheritance key
Date: Tue, 15 Jul 2003 13:13:29 -0500
Message-ID: <004601c34afc$cb6f2a20$7501000a@somewhere>
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Okay, I've figured this out.  I now understand those are the key values
that will be used to distinguish the class types.  However, I still
don't understand how to specify that an attribute belongs to "B" and not
"C".  Specifically, I would like to model:

	A
	|
   -------
   |	|  |
   B  C  D

...where "B", "C", and "D" are more specialized than "A" and contain
attributes unique to their class.  How do I model this in Torque's XML
schema?


> -----Original Message-----
> From: Marc Dugger [mailto:mdugger@sunsetdirect.com]
> Sent: Tuesday, July 15, 2003 12:38 PM
> To: torque-user@db.apache.org
> Subject: inheritance key
> 
> I've read the inheritance guide, but am confused about the 'key'
> attribute of the 'inheritance' element.  The example given specifies
> keys such as "B", "C", and "D".  Are those column names within the
same
> table or what?


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