How to change order item identity in cart
We have added some another ID to the order item, lets call it otherID. Now each order item have a productID that put the same order item into the same cart entry, so if I added two order item which have productID=5, otherID=1 and 2 respectively, they will be put into one entry in cart and there is no way to distinguish them.
Can anyone shred any light on me about how to change it? Do I need to make otherID part of order item's composite key?