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Re: multi column foreign key for implicitly unique columns - Mailing list pgsql-sql

From Markus Bertheau
Subject Re: multi column foreign key for implicitly unique columns
Date
Msg-id 1092836961.2630.3.camel@dicaprio.akademie1.de
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In response to Re: multi column foreign key for implicitly unique columns  (Jan Wieck <JanWieck@Yahoo.com>)
Responses Re: multi column foreign key for implicitly unique columns
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В Срд, 18.08.2004, в 15:33, Jan Wieck пишет:

> Meaning that not enforcing the uniqueness of those columns isn't an
> option.

The thing is that the columns _are_ unique, there's just no unique
constraint on them. They are unique because there's a unique constraint
on a subset of these columns. So no additional uniqueness enforcing
needed.

--
Markus Bertheau <twanger@bluetwanger.de>

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