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# name: test/sql/join/full_outer/full_outer_join_union.test
# description: Test FULL OUTER JOIN with unions
# group: [full_outer]
statement ok
SET default_null_order='nulls_first';
statement ok
PRAGMA enable_verification
statement ok
pragma verify_external
statement ok
CREATE TABLE integers(i INTEGER, j INTEGER);
statement ok
INSERT INTO integers VALUES (1, 1), (3, 3);
statement ok
CREATE TABLE integers2(k INTEGER, l INTEGER);
statement ok
INSERT INTO integers2 VALUES (1, 10), (2, 20);
# equality join
query IIII
SELECT i, j, k, l FROM integers FULL OUTER JOIN integers2 ON integers.i=integers2.k
UNION ALL
SELECT i, j, k, l FROM integers FULL OUTER JOIN integers2 ON integers.i=integers2.k
ORDER BY i
----
NULL NULL 2 20
NULL NULL 2 20
1 1 1 10
1 1 1 10
3 3 NULL NULL
3 3 NULL NULL
query IIII
SELECT i, j, k, l FROM integers FULL OUTER JOIN integers2 ON integers.i=integers2.k
UNION
SELECT i, j, k, l FROM integers FULL OUTER JOIN integers2 ON integers.i=integers2.k
ORDER BY i
----
NULL NULL 2 20
1 1 1 10
3 3 NULL NULL
query IIII
SELECT i, j, k, l FROM integers FULL OUTER JOIN integers2 ON integers.i=integers2.k
UNION
SELECT i+1, j, k, l FROM integers FULL OUTER JOIN integers2 ON integers.i=integers2.k
UNION
SELECT i+2, j, k, l FROM integers FULL OUTER JOIN integers2 ON integers.i=integers2.k
UNION
SELECT i+3, j, k, l FROM integers FULL OUTER JOIN integers2 ON integers.i=integers2.k
UNION
SELECT i+4, j, k, l FROM integers FULL OUTER JOIN integers2 ON integers.i=integers2.k
ORDER BY 1,2,3,4
----
NULL NULL 2 20
1 1 1 10
2 1 1 10
3 1 1 10
3 3 NULL NULL
4 1 1 10
4 3 NULL NULL
5 1 1 10
5 3 NULL NULL
6 3 NULL NULL
7 3 NULL NULL
query IIII
SELECT DISTINCT * FROM (
SELECT i, j, k, l FROM integers FULL OUTER JOIN integers2 ON integers.i=integers2.k
UNION ALL
SELECT i, j, k, l FROM integers FULL OUTER JOIN integers2 ON integers.i=integers2.k) tbl
ORDER BY i
----
NULL NULL 2 20
1 1 1 10
3 3 NULL NULL
# many unions/full outer joins with views
statement ok
CREATE VIEW v1 AS
SELECT i, j, k, l FROM integers FULL OUTER JOIN integers2 ON integers.i=integers2.k
UNION ALL
SELECT i, j, k, l FROM integers FULL OUTER JOIN integers2 ON integers.i=integers2.k
query IIIIII
SELECT * FROM v1 FULL OUTER JOIN v1 v2 USING (i, j) ORDER BY 1, 2, 3, 4, 5, 6
----
NULL NULL NULL NULL 2 20
NULL NULL NULL NULL 2 20
NULL NULL 2 20 NULL NULL
NULL NULL 2 20 NULL NULL
1 1 1 10 1 10
1 1 1 10 1 10
1 1 1 10 1 10
1 1 1 10 1 10
3 3 NULL NULL NULL NULL
3 3 NULL NULL NULL NULL
3 3 NULL NULL NULL NULL
3 3 NULL NULL NULL NULL
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