Malcolm Tredinnick wrote: >In a correct SQL implementation, NULL is not comparable to anything, > > Yes... It should be :-). And as you said implementation is the whole another businness. johnsu01 talked about MySQL and given its history of not very strong adherence to standard but preferring pratical aspects of doing things I supposed that it's not working like that. The problem description made it look like that for me. So forgive me for sounding like some kinf of authority on the matter of uniqueness!
But since things work so different may be custom validator is not a bad idea after all... --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-users -~----------~----~----~----~------~----~------~--~---