Filter rows in Magic ETL gives a new dataset with the filtered rows but doesn't delete it from the input dataset. I am trying to update the input dataset.
Navigate to the dataset > Click "HISTORY" > Scroll to the update you want to revert to > Hover or the right side of that row > Click the wrench icon > Click "Revert to this point"
You can revert to a previous update or update the data in the source system and do a replace update.
Didn't find a way to do a replace update in any of the Transform data options (like ETL, MySQL, DataSet Views)