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Tejinder
Helper I
Helper I

Why does incremental refresh takes longer than a full refresh ?

‎09-19-2023 08:39 PM

I have configured a dataflow pulling data from an offsite SQL server, millions of rows.
Earlier I was refreshing the entire table once daily and it took about 25 minutes, due to high CPU usage on the server, I upgraded to a Premium per user license and decided to use the incremental refresh option in the dataflows, everything seems configured correctly but now refresh takes even longer than before, 60+ minutes.

At first, I thought it was just the 1st refresh but no, all consecutive refreshes are as slow as the 1st one.

What could be causing this? Any potential solutions?

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lbendlin
Super User
Super User

‎09-20-2023 06:02 PM

What is your partition structure?  Does your data source have indexes on the partition date fields?

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