> I don't know if the plan would be the same but this is a bit clearer:
>
> WHERE COALESCE(b.quantity, 0) > COALESCE(b.deliveredsum, 0)
That should be true, but sometimes we get deliveries of greater quantity then we ordered.
I just want to know the times when I haven't gotten the complete order yet.
If we get more then we ordered, I don't want it to be in this query.