title: Import Data to cassandra and create the Primary Key
body: <p>I've got some csv data to import to cassandra. This could work with the copy-command. The Problem is, that the csv doesn't serve a unique ID for the data so I need to create a timeuuid on import.</p>
  
  <p>Is it possible to do this via copy-command or did I need to write a external script for importing?</p>