For the Parisian out there, we're having the 2nd installment of the Paris Cassandra Meetup next Thursday (October 11). This time, we'll have Matt Dennis coming all the way from Austin to talk about "Apache Cassandra data model differences compared to RDBMS".
You don't want to miss that so go see the eventbrite to get all the practical informations: http://cassandra-paris.eventbrite.com/ Hope to see you there -- Sylvain