Home > Transforms Nodes > JSON Query > JSON Query Node Editor > Aggregate > Edit Group By
The Edit Group By dialog box displays the relational columns above the JSON attribute collection. You can add relational columns as part of the top level Group By. To add relational columns:
In the upper pane, expand the Available Attributes folder.
Select the columns that you want to add. The selected columns are listed in the lower pane.
Click OK.