Custom Comparer Function for Table.Group in Power Query M

The Table.Group function supports custom comparer functions. These allow you to define your own logic for forming groups. In this video you learn how these work and how you can build your own custom comparer function.

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TIMESTAMPS
00:00 Introduction
00:25 Comparer Functions
02:35 Build a Custom Comparer Function
06:04 Summarize Dates by Quarter
08:47 Multiple Columns Logic
16:53 Simplified Comparers with GroupKind.Local


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