Show the product name and total order quantity for each product.
SELECT T1.product_name ,  sum(T2.order_quantity) FROM products AS T1 JOIN order_items AS T2 ON T1.product_id  =  T2.product_id GROUP BY T1.product_id
SELECT T1.product_name ,  sum(T2.order_quantity) FROM products AS T1 JOIN order_items AS T2 ON T1.product_id  =  T2.product_id GROUP BY T1.product_id
[{'product_name': 'jcrew', 'sum(T2.order_quantity)': 14.0}, {'product_name': 'Apple', 'sum(T2.order_quantity)': 11}, {'product_name': 'Apple', 'sum(T2.order_quantity)': 8}, {'product_name': 'jcrew', 'sum(T2.order_quantity)': 9}, {'product_name': 'Apple', 'sum(T2.order_quantity)': 4}, {'product_name': 'jcrew', 'sum(T2.order_quantity)': 9}, {'product_name': 'jcrew', 'sum(T2.order_quantity)': 8}, {'product_name': 'gucci', 'sum(T2.order_quantity)': 12}, {'product_name': 'gucci', 'sum(T2.order_quantity)': 4}, {'product_name': 'gucci', 'sum(T2.order_quantity)': 5}]