Task: Text to Code
Input (English): SQL: SELECT T1.order_id FROM Orders AS T1 JOIN Shipments AS T2 ON T1.order_id = T2.order_id ORDER BY T2.shipment_date Asc
Feedback: It should order ascending by date order placed and Orders's order id must find without repetition .
Output (English): SELECT DISTINCT order_id FROM orders ORDER BY date_order_placed