I am trying to understand the rationale for preventing IN relations when a collection is selected. Cassandra produces this error message: *"InvalidRequest: code=2200 [Invalid query] message="Cannot restrict clustering columns by IN relations when a collection is selected by the query"*
Is this something people are open to relaxing in the future? Or is there a reason for preventing it. It seems that if the users provide a constraint on the partitioning key then this query could be efficient. It would also eliminate the element of surprise for new adopters. [image: Inline image 1] Thank you, Henry
