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Power Query Diagnostics - What does "Generate Preview" mean?
I am trying to diagnose a slow query (merging a CSV source with a SQL source) and can't really understand what the diagnostics is telling me. Any idea what Power Query is doing when it creates a preview?
1 Reply
Hi lbendlin ,
Here is an official document about "Query Diagnostics" feature in power query. You could refer to it:
https://docs.microsoft.com/en-us/power-query/querydiagnostics
