SELECT *
FROM
  (
   SELECT
     i_category
   , i_class
   , i_brand
   , i_product_name
   , d_year
   , d_qoy
   , d_moy
   , s_store_id
   , sumsales
   , rank() OVER (PARTITION BY i_category ORDER BY sumsales DESC) rk
   FROM
     (
      SELECT
        i_category
      , i_class
      , i_brand
      , i_product_name
      , d_year
      , d_qoy
      , d_moy
      , s_store_id
      , sum(COALESCE((ss_sales_price * ss_quantity), 0)) sumsales
      FROM
        store_sales
      , date_dim
      , store
      , item
      WHERE (ss_sold_date_sk = d_date_sk)
         AND (ss_item_sk = i_item_sk)
         AND (ss_store_sk = s_store_sk)
         AND (d_month_seq BETWEEN 1200 AND (1200 + 11))
      GROUP BY ROLLUP (i_category, i_class, i_brand, i_product_name, d_year, d_qoy, d_moy, s_store_id)
   )  dw1
)  dw2
WHERE (rk <= 100)
ORDER BY i_category ASC, i_class ASC, i_brand ASC, i_product_name ASC, d_year ASC, d_qoy ASC, d_moy ASC, s_store_id ASC, sumsales ASC, rk ASC
LIMIT 100