Re: inheritance. more.

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От Martijn van Oosterhout
Тема Re: inheritance. more.
Дата
Msg-id 20080429061701.GA3146@svana.org
обсуждение исходный текст
Ответ на Re: inheritance. more.  ("Gurjeet Singh" <singh.gurjeet@gmail.com>)
Ответы Re: inheritance. more.  ("Gurjeet Singh" <singh.gurjeet@gmail.com>)
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On Tue, Apr 29, 2008 at 06:31:30AM +0530, Gurjeet Singh wrote:
> On Mon, Apr 28, 2008 at 8:01 PM, Erik Jones <erik@myemma.com> wrote:
> > Postgres doesn't yet handle inheritance of constraints from parent to
> > child tables via inheritance.

> Was it done by design or was it a limitation we couldn't get over?

Inheritence of most constraints works, just not unique constraints. The
problem of managing a unique index over multiple tables has not yet
been solved (it's a reasonably hard problem).

Have a nice day,
--
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> Please line up in a tree and maintain the heap invariant while
> boarding. Thank you for flying nlogn airlines.

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