Connect them using the Row > Main
Each time when you connect two components, a wizard pops up to prompt you
to name the link you are creating. This name must be the same as that of the
Hive table you want the active component to process. In this scenario, the
input tables the two tELTHiveInput
components will handle are customer and
state_city and the output table
tELTHiveOutput will handle is agg_result.