'Are columns deleted in import mode still getting refresh from data? (Power BI)
There is a dataset that I have established with a connection with ODBC. I'm transferring this dataset to the desktop with the import mode. But since I won't be using most of the columns, I deleted the ones I didn't use in the power query editor. Will those I delete still be updated at scheduled refresh times? So can I see any performance improvement for deleting these columns?
My opinion on this is that the power bi still keeps the data in some place and refreshes it. Because I can undo the operations I have done from the power query. But I am not sure that is just my opinion. Can anyone provide any helpful links?
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