diff --git a/src/backend/distributed/README.md b/src/backend/distributed/README.md index f64263ed2..0a3164e0f 100644 --- a/src/backend/distributed/README.md +++ b/src/backend/distributed/README.md @@ -447,14 +447,8 @@ WHERE orders_table.user_id = distinct_user_id; #### Subquery in Target List ```sql --- Sum of max price per product category, filtered by a subquery in the target list -SELECT - (SELECT MAX(price) FROM products_table p WHERE p.category = o.category), - COUNT(DISTINCT o.product_id) -FROM orders_table o, users_table u -WHERE o.user_id = u.user_id AND u.user_id IN -(SELECT user_id FROM special_users_table) -GROUP BY o.category; +-- retrieves the most recent order date for each user +SELECT (SELECT MAX(order_date) FROM orders_table o WHERE o.user_id = u.user_id) FROM users_table u; ``` #### Subquery in WHERE Clause