From: | Lorenzo Huerta <lorenzo(at)nmsu(dot)edu> |
---|---|
To: | pgsql-sql(at)postgresql(dot)org |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | help with uniq index |
Date: | 1998-07-23 16:55:53 |
Message-ID: | Pine.SOL.3.96.980723105318.5220G-100000@wilma |
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Lists: | pgsql-general pgsql-sql |
is there a way to create a unique index on a field (in ver 6.3.1 )and also
have a single non-uniq value in that value, ie the NULL value?
Thanks,
__________________________________________________________________
* Lorenzo J. Huerta *
* Programming Assistant *
* Computing & Networking Networking Architecture and Operations *
* New Mexico State University *
* phone: (w)(505)646-2582 (h)(505) 521-8699 fax:(505) 646-8139 *
* e-mail: lorenzo(at)nmsu(dot)edu *
* Web Site: http://web.nmsu.edu/~ljhuerta *
__________________________________________________________________
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