WITH
  ws AS (
   SELECT
     "d_year" "ws_sold_year"
   , "ws_item_sk"
   , "ws_bill_customer_sk" "ws_customer_sk"
   , "sum"("ws_quantity") "ws_qty"
   , "sum"("ws_wholesale_cost") "ws_wc"
   , "sum"("ws_sales_price") "ws_sp"
   FROM
     ((web_sales
   LEFT JOIN web_returns ON ("wr_order_number" = "ws_order_number")
      AND ("ws_item_sk" = "wr_item_sk"))
   INNER JOIN date_dim ON ("ws_sold_date_sk" = "d_date_sk"))
   WHERE ("wr_order_number" IS NULL)
   GROUP BY "d_year", "ws_item_sk", "ws_bill_customer_sk"
) 
, cs AS (
   SELECT
     "d_year" "cs_sold_year"
   , "cs_item_sk"
   , "cs_bill_customer_sk" "cs_customer_sk"
   , "sum"("cs_quantity") "cs_qty"
   , "sum"("cs_wholesale_cost") "cs_wc"
   , "sum"("cs_sales_price") "cs_sp"
   FROM
     ((catalog_sales
   LEFT JOIN catalog_returns ON ("cr_order_number" = "cs_order_number")
      AND ("cs_item_sk" = "cr_item_sk"))
   INNER JOIN date_dim ON ("cs_sold_date_sk" = "d_date_sk"))
   WHERE ("cr_order_number" IS NULL)
   GROUP BY "d_year", "cs_item_sk", "cs_bill_customer_sk"
) 
, ss AS (
   SELECT
     "d_year" "ss_sold_year"
   , "ss_item_sk"
   , "ss_customer_sk"
   , "sum"("ss_quantity") "ss_qty"
   , "sum"("ss_wholesale_cost") "ss_wc"
   , "sum"("ss_sales_price") "ss_sp"
   FROM
     ((store_sales
   LEFT JOIN store_returns ON ("sr_ticket_number" = "ss_ticket_number")
      AND ("ss_item_sk" = "sr_item_sk"))
   INNER JOIN date_dim ON ("ss_sold_date_sk" = "d_date_sk"))
   WHERE ("sr_ticket_number" IS NULL)
   GROUP BY "d_year", "ss_item_sk", "ss_customer_sk"
) 
SELECT
  "ss_sold_year"
, "ss_item_sk"
, "ss_customer_sk"
, "round"((CAST("ss_qty" AS DECIMAL(10,2)) / COALESCE(("ws_qty" + "cs_qty"), 1)), 2) "ratio"
, "ss_qty" "store_qty"
, "ss_wc" "store_wholesale_cost"
, "ss_sp" "store_sales_price"
, (COALESCE("ws_qty", 0) + COALESCE("cs_qty", 0)) "other_chan_qty"
, (COALESCE("ws_wc", 0) + COALESCE("cs_wc", 0)) "other_chan_wholesale_cost"
, (COALESCE("ws_sp", 0) + COALESCE("cs_sp", 0)) "other_chan_sales_price"
FROM
  ((ss
LEFT JOIN ws ON ("ws_sold_year" = "ss_sold_year")
   AND ("ws_item_sk" = "ss_item_sk")
   AND ("ws_customer_sk" = "ss_customer_sk"))
LEFT JOIN cs ON ("cs_sold_year" = "ss_sold_year")
   AND ("cs_item_sk" = "cs_item_sk")
   AND ("cs_customer_sk" = "ss_customer_sk"))
WHERE (COALESCE("ws_qty", 0) > 0)
   AND (COALESCE("cs_qty", 0) > 0)
   AND ("ss_sold_year" = 2000)
ORDER BY "ss_sold_year" ASC, "ss_item_sk" ASC, "ss_customer_sk" ASC, "ss_qty" DESC, "ss_wc" DESC, "ss_sp" DESC, "other_chan_qty" ASC, "other_chan_wholesale_cost" ASC, "other_chan_sales_price" ASC, "round"((CAST("ss_qty" AS DECIMAL(10,2)) / COALESCE(("ws_qty" + "cs_qty"), 1)), 2) ASC
LIMIT 100
;