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Improving Dataset Refresh with Query Folding and the Dataflows Connector

Chris Webb has a performance tip for us:

You may have noticed that a new dataflows connector was announced in the August 2021 release of Power BI Desktop, and that it now supports query folding between a dataset and a dataflow – which you may be surprised to learn was not possible before. In this post I thought I’d take a look at how much of an improvement in performance this can make to dataset refresh performance.

Click through for the demonstration.