# name: test/sql/tpch/q01_union.test_slow
# description: Test TPC-H SF0.01 Q1 with unions
# group: [tpch]

require tpch

statement ok
PRAGMA threads=4

statement ok
PRAGMA verify_parallelism

statement ok
CALL dbgen(sf=0.01);

query IIIII
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;
----
<FILE>:extension/tpch/dbgen/answers/sf0.01/q01.csv

query I
SELECT sum(l_quantity) AS sum FROM lineitem WHERE l_shipdate <= CAST('1998-09-02' AS date)
UNION ALL
SELECT sum(l_extendedprice) FROM lineitem WHERE l_shipdate <= CAST('1998-09-02' AS date)
UNION ALL
SELECT sum(l_extendedprice * (1 - l_discount)) FROM lineitem WHERE l_shipdate <= CAST('1998-09-02' AS date)
UNION ALL
SELECT sum(l_extendedprice * (1 - l_discount) * (1 + l_tax)) FROM lineitem WHERE l_shipdate <= CAST('1998-09-02' AS date)
UNION ALL
SELECT avg(l_quantity) FROM lineitem WHERE l_shipdate <= CAST('1998-09-02' AS date)
UNION ALL
SELECT avg(l_extendedprice) FROM lineitem WHERE l_shipdate <= CAST('1998-09-02' AS date)
UNION ALL
SELECT count(*) FROM lineitem WHERE l_shipdate <= CAST('1998-09-02' AS date)
----
1513678.0
2120830299.82
2015354671.73
2096391169.94
25.522754480921307
35760.20199672889
59307.0