should be it

external/duckdb/extension/tpcds/dsdgen/queries/36.sql

@@ -0,0 +1,59 @@
+WITH results AS
+  (SELECT sum(ss_net_profit) AS ss_net_profit,
+          sum(ss_ext_sales_price) AS ss_ext_sales_price,
+          (sum(ss_net_profit)*1.0000)/sum(ss_ext_sales_price) AS gross_margin ,
+          i_category ,
+          i_class ,
+          0 AS g_category,
+          0 AS g_class
+   FROM store_sales ,
+        date_dim d1 ,
+        item ,
+        store
+   WHERE d1.d_year = 2001
+     AND d1.d_date_sk = ss_sold_date_sk
+     AND i_item_sk = ss_item_sk
+     AND s_store_sk = ss_store_sk
+     AND s_state ='TN'
+   GROUP BY i_category,
+            i_class) ,
+     results_rollup AS
+  (SELECT gross_margin,
+          i_category,
+          i_class,
+          0 AS t_category,
+          0 AS t_class,
+          0 AS lochierarchy
+   FROM results
+   UNION SELECT (sum(ss_net_profit)*1.0000)/sum(ss_ext_sales_price) AS gross_margin,
+                i_category,
+                NULL AS i_class,
+                0 AS t_category,
+                1 AS t_class,
+                1 AS lochierarchy
+   FROM results
+   GROUP BY i_category
+   UNION SELECT (sum(ss_net_profit)*1.0000)/sum(ss_ext_sales_price) AS gross_margin,
+                NULL AS i_category,
+                NULL AS i_class,
+                1 AS t_category,
+                1 AS t_class,
+                2 AS lochierarchy
+   FROM results)
+SELECT gross_margin,
+       i_category,
+       i_class,
+       lochierarchy,
+       rank() OVER ( PARTITION BY lochierarchy,
+                                  CASE
+                                      WHEN t_class = 0 THEN i_category
+                                  END
+                    ORDER BY gross_margin ASC) AS rank_within_parent
+FROM results_rollup
+ORDER BY lochierarchy DESC NULLS FIRST,
+         CASE
+             WHEN lochierarchy = 0 THEN i_category
+         END NULLS FIRST,
+         rank_within_parent NULLS FIRST
+LIMIT 100;
+