CREATE TABLE customers (customer_id VARCHAR(255), customer_name VARCHAR(255)); CREATE TABLE order_items (order_quantity INTEGER, order_id VARCHAR(255)); CREATE TABLE customer_orders (customer_id VARCHAR(255), order_id VARCHAR(255))
What is the total quantity of products purchased by "Rodrick Heaney"?
    
SQL: SELECT SUM(t3.order_quantity) 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 t1.customer_name = "Rodrick Heaney"