So you're suggesting that there is no way to populate the real END_DATE column? I have to add redundance by introducing a second end date field which I need to copy to the real end_date field by copying over the columns value? Either I understood you completely wrong or you must be kidding me.
What's the benefit of this? When I have to run an sql script anyway, I can as well copy the end date to the field by an sql script without creating any redundance.