| 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 |