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SELECT
'web' "channel"
, "web"."item"
, "web"."return_ratio"
, "web"."return_rank"
, "web"."currency_rank"
FROM
(
SELECT
"item"
, "return_ratio"
, "currency_ratio"
, "rank"() OVER (ORDER BY "return_ratio" ASC) "return_rank"
, "rank"() OVER (ORDER BY "currency_ratio" ASC) "currency_rank"
FROM
(
SELECT
"ws"."ws_item_sk" "item"
, (CAST("sum"(COALESCE("wr"."wr_return_quantity", 0)) AS DECIMAL(15,4)) / CAST("sum"(COALESCE("ws"."ws_quantity", 0)) AS DECIMAL(15,4))) "return_ratio"
, (CAST("sum"(COALESCE("wr"."wr_return_amt", 0)) AS DECIMAL(15,4)) / CAST("sum"(COALESCE("ws"."ws_net_paid", 0)) AS DECIMAL(15,4))) "currency_ratio"
FROM
(${database}.${schema}.web_sales ws
LEFT JOIN ${database}.${schema}.web_returns wr ON ("ws"."ws_order_number" = "wr"."wr_order_number")
AND ("ws"."ws_item_sk" = "wr"."wr_item_sk"))
, ${database}.${schema}.date_dim
WHERE ("wr"."wr_return_amt" > 10000)
AND ("ws"."ws_net_profit" > 1)
AND ("ws"."ws_net_paid" > 0)
AND ("ws"."ws_quantity" > 0)
AND ("ws_sold_date_sk" = "d_date_sk")
AND ("d_year" = 2001)
AND ("d_moy" = 12)
GROUP BY "ws"."ws_item_sk"
) in_web
) web
WHERE ("web"."return_rank" <= 10)
OR ("web"."currency_rank" <= 10)
UNION SELECT
'catalog' "channel"
, "catalog"."item"
, "catalog"."return_ratio"
, "catalog"."return_rank"
, "catalog"."currency_rank"
FROM
(
SELECT
"item"
, "return_ratio"
, "currency_ratio"
, "rank"() OVER (ORDER BY "return_ratio" ASC) "return_rank"
, "rank"() OVER (ORDER BY "currency_ratio" ASC) "currency_rank"
FROM
(
SELECT
"cs"."cs_item_sk" "item"
, (CAST("sum"(COALESCE("cr"."cr_return_quantity", 0)) AS DECIMAL(15,4)) / CAST("sum"(COALESCE("cs"."cs_quantity", 0)) AS DECIMAL(15,4))) "return_ratio"
, (CAST("sum"(COALESCE("cr"."cr_return_amount", 0)) AS DECIMAL(15,4)) / CAST("sum"(COALESCE("cs"."cs_net_paid", 0)) AS DECIMAL(15,4))) "currency_ratio"
FROM
(${database}.${schema}.catalog_sales cs
LEFT JOIN ${database}.${schema}.catalog_returns cr ON ("cs"."cs_order_number" = "cr"."cr_order_number")
AND ("cs"."cs_item_sk" = "cr"."cr_item_sk"))
, ${database}.${schema}.date_dim
WHERE ("cr"."cr_return_amount" > 10000)
AND ("cs"."cs_net_profit" > 1)
AND ("cs"."cs_net_paid" > 0)
AND ("cs"."cs_quantity" > 0)
AND ("cs_sold_date_sk" = "d_date_sk")
AND ("d_year" = 2001)
AND ("d_moy" = 12)
GROUP BY "cs"."cs_item_sk"
) in_cat
) "CATALOG"
WHERE ("catalog"."return_rank" <= 10)
OR ("catalog"."currency_rank" <= 10)
UNION SELECT
'${database}.${schema}.store' "channel"
, "store"."item"
, "store"."return_ratio"
, "store"."return_rank"
, "store"."currency_rank"
FROM
(
SELECT
"item"
, "return_ratio"
, "currency_ratio"
, "rank"() OVER (ORDER BY "return_ratio" ASC) "return_rank"
, "rank"() OVER (ORDER BY "currency_ratio" ASC) "currency_rank"
FROM
(
SELECT
"sts"."ss_item_sk" "item"
, (CAST("sum"(COALESCE("sr"."sr_return_quantity", 0)) AS DECIMAL(15,4)) / CAST("sum"(COALESCE("sts"."ss_quantity", 0)) AS DECIMAL(15,4))) "return_ratio"
, (CAST("sum"(COALESCE("sr"."sr_return_amt", 0)) AS DECIMAL(15,4)) / CAST("sum"(COALESCE("sts"."ss_net_paid", 0)) AS DECIMAL(15,4))) "currency_ratio"
FROM
(${database}.${schema}.store_sales sts
LEFT JOIN ${database}.${schema}.store_returns sr ON ("sts"."ss_ticket_number" = "sr"."sr_ticket_number")
AND ("sts"."ss_item_sk" = "sr"."sr_item_sk"))
, ${database}.${schema}.date_dim
WHERE ("sr"."sr_return_amt" > 10000)
AND ("sts"."ss_net_profit" > 1)
AND ("sts"."ss_net_paid" > 0)
AND ("sts"."ss_quantity" > 0)
AND ("ss_sold_date_sk" = "d_date_sk")
AND ("d_year" = 2001)
AND ("d_moy" = 12)
GROUP BY "sts"."ss_item_sk"
) in_store
) store
WHERE ("store"."return_rank" <= 10)
OR ("store"."currency_rank" <= 10)
ORDER BY 1 ASC, 4 ASC, 5 ASC, 2 ASC
LIMIT 100
