PCAReduce version 1.9, PCAMap version 1.8
SELECT * FROM PCAReduce ( ON PCAMap ( ON target_table [ PARTITION BY { ANY | KEY } ] [ USING Target_Columns ({ 'target_column' | target_column_range }[,...]) ] ) AS alias_1 PARTITION BY 1 [ USING Components (num_components) ] ) AS alias_2 ORDER BY component_rank;