Fwd: help with uniq index (fwd)

can you all help me with this:

> ---------- Forwarded message ----------
> Date: Thu, 23 Jul 1998 12:50:17 -0600 (MDT)
> 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
>
>
> 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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