数据仓库服务 GAUSSDB(DWS)-TPC-H查询测试:Q8

时间：2024-10-22 11:41:47

Q8

  
   
     
     
       SELECT
o_year,
sum(case
when nation = 'BRAZIL' then volume
else 0
end) / sum(volume) as mkt_share
FROM
(
SELECT
extract(year FROM o_orderdate) as o_year,
l_extendedprice * (1 - l_discount) as volume,
n2.n_name as nation
FROM
part,
supplier,
lineitem,
orders,
customer,
nation n1,
nation n2,
region
WHERE
p_partkey = l_partkey
and s_suppkey = l_suppkey
and l_orderkey = o_orderkey
and o_custkey = c_custkey
and c_nationkey = n1.n_nationkey
and n1.n_regionkey = r_regionkey
and r_name = 'AMERICA'
and s_nationkey = n2.n_nationkey
and o_orderdate between date '1995-01-01' and date '1996-12-31'
and p_type = 'ECONOMY ANODIZED STEEL'
) as all_nations
GROUP BY
o_year
ORDER BY
o_year;

      

    

  
 