I stumbled upon this presentation while trying to better understand the Cassandra data model and composite columns, and it really helped me.<p>Here are the slides: <a href="http://www.slideshare.net/edanuff/indexing-in-cassandra" rel="nofollow">http://www.slideshare.net/edanuff/indexing-in-cassandra</a><p>It's also mentioned in this blog post: <a href="http://www.datastax.com/dev/blog/introduction-to-composite-columns-part-1" rel="nofollow">http://www.datastax.com/dev/blog/introduction-to-composite-c...</a>