query: SELECT order_id ,  count(DISTINCT product_id) FROM Order_items GROUP BY order_id
question: How many different product correspond to each orders imight would?
query_toks: SELECT order_id , count ( DISTINCT product_id ) FROM Order_items GROUP BY order_id
query_toks_no_value: select order_id , count ( distinct product_id ) from order_items group by order_id
question_toks: How many different product correspond to each orders imight would?