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Re: NULLs ;-)

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Scott Ribe <scott_ribe(at)killerbytes(dot)com>
Cc: pgsql general <pgsql-general(at)postgresql(dot)org>
Subject: Re: NULLs ;-)
Date: 2006-11-28 00:50:25
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-general
Scott Ribe <scott_ribe(at)killerbytes(dot)com> writes:
> But there are times when I need to query what would be described in
> relational terms as "not known to be equal", and

>  where a <> b or (a is null and b is not null) or (a is not null and b is
> null)


			regards, tom lane

In response to

  • NULLs ;-) at 2006-11-28 00:37:53 from Scott Ribe

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