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From: Chris Bitmead <chris@bitmead.com>
To: Hannu Krosing <hannu@tm.ee>
Cc: Chris Bitmead <chrisb@nimrod.itg.telstra.com.au>
Cc: PostgreSQL Development <pgsql-hackers@postgresql.org>
Subject: Re: Thus spoke SQL3 (on OO)
Date: Tue, 23 May 2000 06:04:19 +1000
Message-ID: <392992C3.9DFC0F31@bitmead.com> (raw)
References: <Pine.LNX.4.21.0005201507330.423-100000@localhost.localdomain>
	<00052104000003.14806@comptechnews>
	<392830DA.B5546EF7@bitmead.com>
	<00052108053904.14806@comptechnews>
	<39286B3F.F4594E40@bitmead.com>
	<39283008.ED83E94@tm.ee>
	<39287873.D023D7E5@nimrod.itg.telecom.com.au>
	<3928F01B.B0C6D563@tm.ee>
	<39298E29.16B280CC@bitmead.com>
	<3928F748.3F51EA87@tm.ee>

Hannu Krosing wrote:

> it would be hard to define RI by just saying that some field references "an
> OID",
> often you want to be able do define something more specific.
> 
> It would be too much for most users to require that all primary and foreign
> keys
> must be of type OID.

Since it would be object and relational, you could do either. But all
pure object databases _always_ rely on oid to define relationships, and
that is likely to be all an ODMG inteface would support. Unless we want
to break new ground anyway.

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