Subject Re: Re: Re: [firebird-support] Is there any logical difference?
Author liviuslivius
>>I certainly agree with you that if EXISTS returns false, then NOT EXISTS should return true.
>>It could make some sense if both EXISTS and NOT EXISTS returned <null> (though it should be documented somewhere), but not that one returns false and the other <null>.
>>When you write this in the tracker, I think it would be good if you included a very simple reproducible test case.
on the tracker as 
reproducible yes, simple - not yet ;-)
Karol Bieniaszewski