text: --
  -- Licensed to the Apache Software Foundation (ASF) under one or more
  -- contributor license agreements.  See the NOTICE file distributed with
  -- this work for additional information regarding copyright ownership.
  -- The ASF licenses this file to You under the Apache License, Version 2.0
  -- (the "License"); you may not use this file except in compliance with
  -- the License.  You may obtain a copy of the License at
  --
  --    http://www.apache.org/licenses/LICENSE-2.0
  --
  -- Unless required by applicable law or agreed to in writing, software
  -- distributed under the License is distributed on an "AS IS" BASIS,
  -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  -- See the License for the specific language governing permissions and
  -- limitations under the License.
  --
  
  SELECT
    w_state,
    i_item_id,
    sum(CASE WHEN (cast(d_date AS DATE) < cast('2000-03-11' AS DATE))
      THEN cs_sales_price - coalesce(cr_refunded_cash, 0)
        ELSE 0 END) AS sales_before,
    sum(CASE WHEN (cast(d_date AS DATE) >= cast('2000-03-11' AS DATE))
      THEN cs_sales_price - coalesce(cr_refunded_cash, 0)
        ELSE 0 END) AS sales_after
  FROM
    catalog_sales
    LEFT OUTER JOIN catalog_returns ON
                                      (cs_order_number = cr_order_number
                                        AND cs_item_sk = cr_item_sk)
    , warehouse, item, date_dim
  WHERE
    i_current_price BETWEEN 0.99 AND 1.49
      AND i_item_sk = cs_item_sk
      AND cs_warehouse_sk = w_warehouse_sk
      AND cs_sold_date_sk = d_date_sk
      AND d_date BETWEEN (cast('2000-03-11' AS DATE) - INTERVAL 30 days)
    AND (cast('2000-03-11' AS DATE) + INTERVAL 30 days)
  GROUP BY w_state, i_item_id
  ORDER BY w_state, i_item_id
  LIMIT 100
  