Bertrand Petit writes:
> NULL=NULL ==> t
> 1=NULL ==> NULL (or anything else as long as it is not t)
> 1=1 ==> t
> 1=2 ==> f
> Is there a stock replacement operator that would behave like
> the second truth table?
No, but why not write
(a = b) or (a is null and b is null)
--
Peter Eisentraut [EMAIL PROTECTED]
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