>
> I actually wasn't saying it shouldn't have a unique constraint, just
> that if you're using cflock to handle the looping and checking, then the
> system will never actually reach a point at which the unique index
> becomes relevant, because the lock will prevent it from even attempting
> to insert any dup's.


I wasn't saying you weren't - just pointing out that it should ;)

What I am saying though is that the check and the insert can be the same
thing - why use two uniqueness checkers when one is already written for you
and is water tight? Loop until the db doesn't throw back a unique constraint
error when you try and insert. Seems to me the most logical approach (and it
doesn't require a lock).

Dominic

-- 
Blog it up: http://fusion.dominicwatson.co.uk


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