A couple of weeks ago I attended a Google Cloud seminar titled "Optimise BigQuery: Editions, Slots & Savings". I came out with a handful of specific techniques I had not been applying consistently and a few I had not thought about at all. The truth is that BigQuery is one of those services that rewards you enormously when you understand it and quietly punishes you when you don't. You can run the same query on the same data and pay wildly different amounts depending on how you