> While I agree in principle that such a thing should be
> able to be done, it simply isn't possible. (in PostgreSQL, you can't
> even add an index to a view, which a unique constraint would depend
> on).
Agreed on that.
But such an extension would require a view to be more than just SELECT.
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Olexandr Melnyk,
http://omelnyk.net/
> <http://archives.postgresql.org/>