# name: benchmark/tpch/union/q01_union.benchmark
# description: Union of separate tables into a single aggregate
# group: [union]

include benchmark/tpch/tpch_load.benchmark.in

name Lineitem Union Q01
group union
subgroup tpch

run
SELECT
    l_returnflag,
    l_linestatus,
    sum(l_quantity) AS sum_qty,
    sum(l_extendedprice) AS sum_base_price,
    sum(l_extendedprice * (1 - l_discount)) AS sum_disc_price,
    sum(l_extendedprice * (1 - l_discount) * (1 + l_tax)) AS sum_charge,
    avg(l_quantity) AS avg_qty,
    avg(l_extendedprice) AS avg_price,
    avg(l_discount) AS avg_disc,
    count(*) AS count_order
FROM
    (
		SELECT * FROM lineitem WHERE l_shipdate <= DATE '1990-09-02'
		UNION ALL
		SELECT * FROM lineitem WHERE l_shipdate > DATE '1990-09-02' AND l_shipdate <= DATE '1992-09-02'
		UNION ALL
		SELECT * FROM lineitem WHERE l_shipdate > DATE '1992-09-02' AND l_shipdate <= DATE '1994-09-02'
		UNION ALL
		SELECT * FROM lineitem WHERE l_shipdate > DATE '1994-09-02' AND l_shipdate <= DATE '1996-09-02'
		UNION ALL
		SELECT * FROM lineitem WHERE l_shipdate > DATE '1996-09-02' AND l_shipdate <= DATE '1998-09-02'
	) lineitem
GROUP BY
    l_returnflag,
    l_linestatus
ORDER BY
    l_returnflag,
    l_linestatus;

result extension/tpch/dbgen/answers/sf1/q01.csv sf=1