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Create the data mart data set in Create Data Set Module, choose the cloud folder, right click to create filter in file filter area, as shown of the set label in the red circle in the image below, then choose the label value again. 

➢For example: when executing the cloud task, type the label "date" for cloud file, and the label value is the date of the day. Filter the data within the time slot according to the label value during data modeling in data set.