TPC-DS Q71

SELECT
  i_brand_id AS brand_id,
  i_brand AS brand,
  t_hour,
  t_minute,
  SUM(ext_price) AS ext_price
FROM item, (
  SELECT
    ws_ext_sales_price AS ext_price,
    ws_sold_date_sk AS sold_date_sk,
    ws_item_sk AS sold_item_sk,
    ws_sold_time_sk AS time_sk
  FROM web_sales, date_dim
  WHERE
    d_date_sk = ws_sold_date_sk AND d_moy = 12 AND d_year = 2002
  UNION ALL
  SELECT
    cs_ext_sales_price AS ext_price,
    cs_sold_date_sk AS sold_date_sk,
    cs_item_sk AS sold_item_sk,
    cs_sold_time_sk AS time_sk
  FROM catalog_sales, date_dim
  WHERE
    d_date_sk = cs_sold_date_sk AND d_moy = 12 AND d_year = 2002
  UNION ALL
  SELECT
    ss_ext_sales_price AS ext_price,
    ss_sold_date_sk AS sold_date_sk,
    ss_item_sk AS sold_item_sk,
    ss_sold_time_sk AS time_sk
  FROM store_sales, date_dim
  WHERE
    d_date_sk = ss_sold_date_sk AND d_moy = 12 AND d_year = 2002
) AS tmp, time_dim
WHERE
  sold_item_sk = i_item_sk
  AND i_manager_id = 1
  AND time_sk = t_time_sk
  AND (
    t_meal_time = 'breakfast' OR t_meal_time = 'dinner'
  )
GROUP BY
  i_brand,
  i_brand_id,
  t_hour,
  t_minute
ORDER BY
  ext_price DESC,
  i_brand_id;