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Hi I’m Jared Hillam, A couple of years ago I was presented to something called a Columnar database. It was accompanied by a demo where the presenter queried several billions of rows of data in less than 3 seconds. I waited patiently for magic ferries to fly out of the server. But soon after I realized that this solution was simply taking a far more logical approach to acquiring large sums of data. Today I’m going to share a simple exercise which will help you see the power of using a Columnar database for certain tasks. To illustrate this exercise, I’m going to use a good old excel spreadsheet, populated with some baseball Statistics. Let’s imagine that you’re going to play the role of the Traditional Database. Before I have you play this role though, you need to know that there’s a rule. You have to read the data from left to right starting from the beginning of each row, as you go fro