core/sql/qms/debug/f7

-- @@@ START COPYRIGHT @@@
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-- to you under the Apache License, Version 2.0 (the
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-- @@@ END COPYRIGHT @@@
obey regr.init;

-- Q5
  SELECT	n_name, 
  		sum(l_extendedprice*(1-l_discount)) as revenue,count(*) rows_in_group
  FROM		customer,
  		orders,
  		lineitem,
  		supplier,
  		nation, 
  		region
  WHERE		c_custkey = o_custkey
    AND    o_orderkey = l_orderkey
    AND    l_suppkey = s_suppkey
    AND    c_nationkey= s_nationkey
    AND    s_nationkey = n_nationkey
    AND    n_regionkey = r_regionkey
    AND    r_name in ('ASIA','AMERICA','EUROPE','MIDDLE EAST','AFRICA')
    AND    o_orderdate >= date '1994-01-01'
    AND    o_orderdate < date '1994-01-01' + interval '3' year
  GROUP BY n_name;