TPC-DS Q1

WITH customer_total_return AS (
  SELECT
    sr_customer_sk AS ctr_customer_sk,
    sr_store_sk AS ctr_store_sk,
    SUM(sr_fee) AS ctr_total_return
  FROM store_returns, date_dim
  WHERE
    sr_returned_date_sk = d_date_sk AND d_year = 2000
  GROUP BY
    sr_customer_sk,
    sr_store_sk
)
SELECT
TOP 100
  c_customer_id
FROM customer_total_return AS ctr1, store, customer
WHERE
  ctr1.ctr_total_return > (
    SELECT
      AVG(ctr_total_return) * 1.2
    FROM customer_total_return AS ctr2
    WHERE
      ctr1.ctr_store_sk = ctr2.ctr_store_sk
  )
  AND s_store_sk = ctr1.ctr_store_sk
  AND s_state = 'NM'
  AND ctr1.ctr_customer_sk = c_customer_sk
ORDER BY
  c_customer_id;