Question: What is the name of the customer that made the order with the largest quantity?
SQL: SELECT t1.customer_name FROM customers AS t1 JOIN customer_orders AS t2 ON t1.customer_id  =  t2.customer_id JOIN order_items AS t3 ON t2.order_id  =  t3.order_id WHERE t3.order_quantity  =  ( SELECT max(order_quantity) FROM order_items)