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How to shoot yourself in the foot with Azure SQL Data Warehouse

Having implemented Azure SQL Data Warehouse solutions for dozens of clients, here are the lessons learned we wish we had known several years ago. Learn a great way to make your loads run twice as long. Learn the best ways to make columnstores perform as slowly as molasses in January. Take a visit to the distribution key hall of shame. We review some common mistakes, understand what’s happening under the covers, then show the best practice to fix the problem.