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Visualizing Parallelism in Power Query Diagnostics Data

Chris Webb wants to track query concurrency when loading data into Power BI:

Most of the time I’ve spent looking at Power Query Query Diagnostics data, I’ve been looking at data for a single query. Over the past few days though I’ve spent some time investigating what this data shows for all the queries that are executed for a single dataset refresh. To help me do this I wrote the following M function:

Click through for the function, as well as ways of visualizing the results.

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