Power Query evaluates an M query to determine the data and transformations required for its result. During evaluation, query folding attempts to translate supported transformations into operations ...

This article provides some example scenarios for each of the three possible outcomes for query folding. It also includes some suggestions on how to get the most out of the query folding mechanism, and ...

Power Query allows you to merge (“join” in database terms) two tables together in a variety of different ways, including left and right anti joins. Unfortunately, as I found recently, anti joins don’t ...

When you start writing M code for loading data in Power Query or Power BI, one of the first things you’ll do is open up the Advanced Editor for a query you’ve already built using the UI. When you do ...