This node pivots the input DB Data table using the selected of columns for grouping and pivoting. The group columns will result into unique rows, whereby the pivot values turned into columns for each unique set of column combinations together with each aggregation method.
To change the aggregation method of more than one column select all columns to change, open the context menu with a right mouse click and select the aggregation method to use.
A detailed description of the available aggregation methods can be found on the 'Description' tab in the node dialog.