I have this query:

SELECT customer_id, co.order_id, p.product_id, ol.status, p.code,
p.subproduct_id,
FIRST_VALUE(ol.status)
OVER (PARTITION BY customer_id, subproduct_id ORDER BY order_date
DESC) LAST_STATUS
FROM engine.customer_order co, engine.order_line ol, engine.product p
WHERE co.order_id = ol.order_id
AND ol.product_id = p.product_id
AND p.subproduct_id IN (209, 211, 216, 217, 220, 222, 223, 224, 226)
ORDER BY customer_id;

I want to get the status of the most recent record for that customer.
There can be more than 1 record for that customer with the same
subproduct ID.

A customer may have ordered a product, canceled it and re-ordered it
at a later date.....I would want the status of the most recent, along
with the other information above.

This query is giving me all the records. I thought this query would
partition by customer ID / subproduct ID, order by the order date, and
give me the first record (FIRST_VALUE).

Any idea why I am not getting this??