We've seen that static columns give us the ability to associate data with all rows that share the same partition key. However, what if we want to treat the data associated with that partition key as a discrete value rather than some extra information attached to each clustering column value?
More concretely, if we want to display an interface for alice to edit her user profile, all we really need to do is get the information associated with her partition key. We don't care if there are one, 10, or 1,000 status updates; we just need a single row with her username, e-mail address, and so on. With users as a separate table, this is trivial; we just select the single row with the partition key value
