On 05/11/2008, at 6:31 AM, Mike Schrag wrote:
That is not horizontal inheritance to my understanding. You have
Vertical inheritance and so you've not modelled it correctly.
Person should not have a table for Horizontal.
Chuck is right, you will get a table for the abstract parent so that
PK generation works properly and generates unique PK's across all of
your horizontal subentities.
Why is that necessary? i.e., why do they need to be unique across sub-
entities for HI?
(and it's obviously not working ;-)
with regards,
--
Lachlan Deck
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