text: -- $ID$
  -- TPC-H/TPC-R Product Type Profit Measure Query (Q9)
  -- Functional Query Definition
  -- Approved February 1998
  :x
  :o
  select
  	nation,
  	o_year,
  	sum(amount) as sum_profit
  from
  	(
  		select
  			n_name as nation,
  			extract(year from o_orderdate) as o_year,
  			l_extendedprice * (1 - l_discount) - ps_supplycost * l_quantity as amount
  		from
  			part,
  			supplier,
  			lineitem,
  			partsupp,
  			orders,
  			nation
  		where
  			s_suppkey = l_suppkey
  			and ps_suppkey = l_suppkey
  			and ps_partkey = l_partkey
  			and p_partkey = l_partkey
  			and o_orderkey = l_orderkey
  			and s_nationkey = n_nationkey
  			and p_name like '%:1%'
  	) as profit
  group by
  	nation,
  	o_year
  order by
  	nation,
  	o_year desc;
  :n -1
  