We recently had a conversation with DataStax regarding their DataStax Enterprise product, which got us to thinking a little about the nature of Big Data and Cloud. DataStax is the company behind the Open Source Cassandra NoSQL database. It provides technical direction and the majority of committers to the Apache Cassandra project. Cassandra in turn is a Column Family-based database along the lines of Google’s BigTable. If you are a SQL programmer it’s determining feature is… it doesn’t do joins.