SELECT sum(t2.order_quantity) FROM customer_orders AS t1 JOIN order_items AS t2 ON t1.order_id  =  t2.order_id WHERE t1.order_status  =  "Cancelled"
What is the total number of products that are in orders with status "Cancelled"?
SELECT sum ( t2.order_quantity ) FROM customer_orders AS t1 JOIN order_items AS t2 ON t1.order_id = t2.order_id WHERE t1.order_status = `` Cancelled ''
select sum ( t2 . order_quantity ) from customer_orders as t1 join order_items as t2 on t1 . order_id = t2 . order_id where t1 . order_status = value
What is the total number of products that are in orders with status `` Cancelled '' ?