# name: test/sql/setops/union_aggregate.test
# description: Test UNION aggregate
# group: [setops]

statement ok
PRAGMA enable_verification

query I
SELECT COUNT(*) FROM range(1)
UNION ALL SELECT COUNT(*) FROM range(1)
----
1
1

query I
SELECT COUNT(*) FROM range(1)
UNION ALL SELECT COUNT(*) FROM range(1)
UNION ALL SELECT COUNT(*) FROM range(1)
UNION ALL SELECT COUNT(*) FROM range(1)
UNION ALL SELECT COUNT(*) FROM range(1)
----
1
1
1
1
1

query I
SELECT COUNT(*) FROM range(1) UNION SELECT COUNT(*) FROM range(1)
----
1

query I
SELECT COUNT(*) FROM range(1)
UNION SELECT COUNT(*) FROM range(2)
ORDER BY 1
----
1
2

query I
SELECT COUNT(*) FROM range(1)
UNION SELECT COUNT(*) FROM range(2)
UNION SELECT COUNT(*) FROM range(3)
UNION SELECT COUNT(*) FROM range(4)
UNION SELECT COUNT(*) FROM range(5)
ORDER BY 1
----
1
2
3
4
5

query I
SELECT * FROM (
	SELECT 1
	UNION ALL
	SELECT 1
) tbl(i)
----
1
1

query I
SELECT * FROM (
	SELECT 1
	UNION
	SELECT 2
	UNION
	SELECT 3
	UNION
	SELECT 4
	UNION
	SELECT 5
) tbl(i)
ORDER BY 1
----
1
2
3
4
5