Who has filed the least amounts of complaints?
select distinct t3.customer_id from products as t1 join complaints as t2 on t1.product_id = t2.product_id join customers as t3 group by t3.customer_id order by count ( * ) limit 1
Customer, 113.
select distinct t1.product_name from products as t1 join complaints as t2 on t1.product_id = t2.product_id join customers as t3 group by t3.customer_id having t3.customer_id = "113"