Re: [GENERAL] pg-dump -- primary Key

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От Ross J. Reedstrom
Тема Re: [GENERAL] pg-dump -- primary Key
Дата
Msg-id 19990725014012.A1550@wallace.ece.rice.edu
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Ответ на Re: [GENERAL] pg-dump -- primary Key  (Chris Bitmead <chris@tech.com.au>)
Список pgsql-general
On Sun, Jul 25, 1999 at 03:13:39PM +1000, Chris Bitmead wrote:
> Dan Wilson wrote:
>
> > Yes, I am aware that the primary key does not really mean anything except
> > implicitly making it a unique key, but it's supposed to be there for
> > compatibility and it's not even in the dump.
>
> Someone mentioned recently that primary key enforces nulls as unique
> whereas unique index doesn't.
>

Actually, I belive it enforces NOT NULL on primary keys, which it also
dumps in the pg_dump output.

Ross
--
Ross J. Reedstrom, Ph.D., <reedstrm@rice.edu>
NSBRI Research Scientist/Programmer
Computer and Information Technology Institute
Rice University, 6100 S. Main St.,  Houston, TX 77005

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