should be it

external/duckdb/extension/tpcds/dsdgen/queries/20.sql

@@ -0,0 +1,29 @@
+
+SELECT i_item_id ,
+       i_item_desc,
+       i_category,
+       i_class,
+       i_current_price ,
+       sum(cs_ext_sales_price) AS itemrevenue,
+       sum(cs_ext_sales_price)*100.0000/sum(sum(cs_ext_sales_price)) OVER (PARTITION BY i_class) AS revenueratio
+FROM catalog_sales ,
+     item,
+     date_dim
+WHERE cs_item_sk = i_item_sk
+  AND i_category IN ('Sports',
+                     'Books',
+                     'Home')
+  AND cs_sold_date_sk = d_date_sk
+  AND d_date BETWEEN cast('1999-02-22' AS date) AND cast('1999-03-24' AS date)
+GROUP BY i_item_id ,
+         i_item_desc,
+         i_category ,
+         i_class ,
+         i_current_price
+ORDER BY i_category NULLS FIRST,
+         i_class NULLS FIRST,
+         i_item_id NULLS FIRST,
+         i_item_desc NULLS FIRST,
+         revenueratio NULLS FIRST
+LIMIT 100;
+