At 10:07 AM 8/3/00 -0400, Tom Lane wrote:
>Thomas Lockhart <lockhart@alumni.caltech.edu> writes:
>> btw, it appears that SQL99 (haven't checked SQL92) specifies that
>
>> test=# select (1,2,3) = (1,2,null);
>> ?column?
>> ----------
>
>> (1 row)
>
>> should return FALSE, not NULL.
>
>What? If so, they broke it pretty badly.
Date disagrees with Thomas on this one, too.
On the other hand, select (2,2,3) = (1,2,null) would be false
because 1 <> 2, therefore the result is not unknown.
- Don Baccus, Portland OR <dhogaza@pacifier.com> Nature photos, on-line guides, Pacific Northwest Rare Bird Alert
Serviceand other goodies at http://donb.photo.net.