The best bet is to use Pig, and use cql:// with CqlStorage(), which does the heavy lifting of flattening the Cassandra data for you, e.g.
grunt> pageviews = LOAD 'cql://ks/pageviews' USING CqlStorage();
grunt> describe pageviews;
grunt> pageviews: {website: chararray,date: chararray,created: long,browser_id: chararray,ip: chararray,referer: chararray,user_agent: chararray}