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I used the following document for reference: http://www.tpc.org/tpch/spec/tpch2.1.0.pdf Change-Id: Ic84db0628323c90e89552707f214bbb9fa2f2ae0 Reviewed-on: http://gerrit.ent.cloudera.com:8080/3132 Reviewed-by: Ishaan Joshi <ishaan@cloudera.com> Tested-by: jenkins
41 lines
959 B
Plaintext
41 lines
959 B
Plaintext
====
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---- QUERY: TPCH-Q8
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# Q8 - National Market Share Query
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# Modifications: Got rid of subquery, converted select from multiple tables to joins,
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select
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year(o_orderdate) as o_year,
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sum(case
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when n2.n_name = 'BRAZIL'
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then l_extendedprice * (1 - l_discount)
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else 0
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end) / sum(l_extendedprice * (1 - l_discount)) as mkt_share
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from lineitem l
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join orders o
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on (l_orderkey = o_orderkey)
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join part p
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on (p_partkey = l_partkey)
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join supplier s
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on (s_suppkey = l_suppkey)
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join customer c
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on (o_custkey = c_custkey)
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join nation n1
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on (c_nationkey = n1.n_nationkey)
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join region r
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on (n1.n_regionkey = r_regionkey)
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join nation n2
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on (s_nationkey = n2.n_nationkey)
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where
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r_name = 'AMERICA' and
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o_orderdate >= '1995-01-01' and
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o_orderdate < '1996-12-31' and
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p_type = 'ECONOMY ANODIZED STEEL'
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group by
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o_year
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order by
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o_year
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---- RESULTS
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1995,0.0344
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1996,0.0415
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---- TYPES
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int, decimal
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==== |