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Posts about Dimitri Fontaine

Understanding Window Functions

Dimitri Fontaine:

There was SQL before window functions and SQL after window functions: that’s how powerful this tool is. Being that of a deal breaker unfortunately means that it can be quite hard to grasp the feature. This article aims at making it crystal clear so that you can begin using it today and are able to reason about it and recognize cases where you want to be using window functions.

Great intro to a powerful feature.