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Or look at:
http://archives.postgresql.org/pgsql-sql/2003-08/msg00286.php
(and possibly its follow-up)
On Jan 13, 2005, at 3:16 PM, Scott Marlowe wrote:
On Thu, 2005-01-13 at 11:02, Doug McNaught wrote:Dave Smith <dave.smith@xxxxxxxxxxx> writes:
On Thu, 2005-01-13 at 10:12, Doug McNaught wrote:
Are you really saying that you want 'NULL = NULL' to return 't'?
Yes
Well, that's not how NULL works.
In this instance, just create an artificial NULL, like a text string of "NONE" and insert that.
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TIP 5: Have you checked our extensive FAQ?
http://www.postgresql.org/docs/faqs/FAQ.html
- ----------------------------------------------------------- Frank D. Engel, Jr. <fde101@xxxxxxxxxxx>
$ ln -s /usr/share/kjvbible /usr/manual
$ true | cat /usr/manual | grep "John 3:16"
John 3:16 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
$
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