What are the benefits of using multiple ColumnFamilies compared to using a composite row name?
Example: You have messages that you want to index on sent and to. So you can either have ColumnFamilyFrom:userTo:{userFrom->messageid} ColumnFamilyTo:userFrom:{userTo->messageid} or something like ColumnFamily:user_to:{user1_messageId, user2_messageId} ColumnFamily:user_from:{user1_messageId, user2_messageId} One thing that I can see the advantage of using families are if you want to use different types in the families. But are there others? Like storage space, read/write speeds etc. -- Regards Erik