# name: test/sql/cte/recursive_hang_2745.test
# description: Issue #2745: sql with RECURSIVE keyword but does not RECURSIVE hang
# group: [cte]

statement ok
PRAGMA enable_verification

query III
with RECURSIVE parents_tab (id , value , parent )
as (values (1, 1, 2), (2, 2, 4), (3, 1, 4), (4, 2, -1), (5, 1, 2), (6, 2, 7), (7, 1, -1)
),
parents_tab2(id , value , parent )
as (values (1, 1, 2), (2, 2, 4), (3, 1, 4), (4, 2, -1), (5, 1, 2), (6, 2, 7), (7, 1, -1)
),
parents as (
    select * from parents_tab
    union all
    select id, value+2, parent from parents_tab2
)
select * from parents order by id, value, parent;
----
1	1	2
1	3	2
2	2	4
2	4	4
3	1	4
3	3	4
4	2	-1
4	4	-1
5	1	2
5	3	2
6	2	7
6	4	7
7	1	-1
7	3	-1

query III
with RECURSIVE parents_tab (id , value , parent )
as (values (1, 1, 2), (2, 2, 4), (3, 1, 4), (4, 2, -1), (5, 1, 2), (6, 2, 7), (7, 1, -1)
),
parents_tab2(id , value , parent )
as (values (1, 1, 2), (2, 2, 4), (3, 1, 4), (4, 2, -1), (5, 1, 2), (6, 2, 7), (7, 1, -1)
)
select * from parents_tab
union all
select id, value+2, parent from parents_tab2 ORDER BY id, value, parent;
----
1	1	2
1	3	2
2	2	4
2	4	4
3	1	4
3	3	4
4	2	-1
4	4	-1
5	1	2
5	3	2
6	2	7
6	4	7
7	1	-1
7	3	-1

query III
with parents_tab (id , value , parent )
as (values (1, 1, 2), (2, 2, 4), (3, 1, 4), (4, 2, -1), (5, 1, 2), (6, 2, 7), (7, 1, -1)
),
parents_tab2(id , value , parent )
as (values (1, 1, 2), (2, 2, 4), (3, 1, 4), (4, 2, -1), (5, 1, 2), (6, 2, 7), (7, 1, -1)
),
parents as (
    select * from parents_tab
    union all
    select id, value+2, parent from parents_tab2
)
select * from parents ORDER BY id, value, parent;
----
1	1	2
1	3	2
2	2	4
2	4	4
3	1	4
3	3	4
4	2	-1
4	4	-1
5	1	2
5	3	2
6	2	7
6	4	7
7	1	-1
7	3	-1

statement ok
create view vparents as
with RECURSIVE parents_tab (id , value , parent )
as (values (1, 1, 2), (2, 2, 4), (3, 1, 4), (4, 2, -1), (5, 1, 2), (6, 2, 7), (7, 1, -1)
),
parents_tab2(id , value , parent )
as (values (1, 1, 2), (2, 2, 4), (3, 1, 4), (4, 2, -1), (5, 1, 2), (6, 2, 7), (7, 1, -1)
)
select * from parents_tab
union all
select id, value+2, parent from parents_tab2;

query III rowsort
select * from vparents;
----
1	1	2
1	3	2
2	2	4
2	4	4
3	1	4
3	3	4
4	2	-1
4	4	-1
5	1	2
5	3	2
6	2	7
6	4	7
7	1	-1
7	3	-1