I would like to be able to use the join tool to join on inequalities. We could join two tables, A and B on A.value is >= B.value1 AND A.value <= B.value2. This would replicate the "between" function in SQL. The equvalent feature in Tableau is pictured below.
@KylieF , I humbly recommend adjusting the roadmap. This should be easy to implement and is an obvious miss that competitive tools offer and is trivial even in raw SQL. This is a pretty big miss. There is now even a question on StackOverflow about it: