If Google was a boxer then MapReduce would be a probing right hand that sets up the massive left hook that is Dremel, Google's—scalable (thousands of CPUs, petabytes of data, trillions of rows), SQL based, columnar, interactive (results returned in seconds), ad-hoc—analytics system. If Google was a magician then MapReduce would be the shiny thing that distracts the mind while the trick goes unnoti