ClickHouse/tests/queries/0_stateless/03033_recursive_cte_basic.reference

-- { echoOn }

SET allow_experimental_analyzer = 1;
WITH RECURSIVE recursive_cte AS (SELECT 1 AS n UNION ALL SELECT n + 1 FROM recursive_cte WHERE n < 10)
SELECT n FROM recursive_cte;
1
2
3
4
5
6
7
8
9
10
SELECT '--';
--
WITH RECURSIVE recursive_cte AS (SELECT toUInt8(1) AS n UNION ALL SELECT toUInt8(n + 1) FROM recursive_cte WHERE n < 10)
SELECT n FROM recursive_cte;
1
2
3
4
5
6
7
8
9
10
SELECT '--';
--
WITH RECURSIVE recursive_cte AS (SELECT toUInt16(1) AS n UNION ALL SELECT toUInt8(n + 1) FROM recursive_cte WHERE n < 10)
SELECT n FROM recursive_cte;
1
2
3
4
5
6
7
8
9
10
SELECT '--';
--
WITH RECURSIVE recursive_cte AS (SELECT materialize(toUInt16(1)) AS n UNION ALL SELECT toUInt8(n + 1) FROM recursive_cte WHERE n < 10)
SELECT n FROM recursive_cte;
1
2
3
4
5
6
7
8
9
10
SELECT '--';
--
WITH RECURSIVE recursive_cte AS (SELECT toUInt16(1) AS n UNION ALL SELECT materialize(toUInt8(n + 1)) FROM recursive_cte WHERE n < 10)
SELECT n FROM recursive_cte;
1
2
3
4
5
6
7
8
9
10
SELECT '--';
--
WITH RECURSIVE recursive_cte AS (SELECT toUInt16(1) AS n, '1' AS concat UNION ALL SELECT materialize(toUInt8(n + 1)), concat || toString(n + 1) FROM recursive_cte WHERE n < 10)
SELECT n, concat FROM recursive_cte;
1	1
2	12
3	123
4	1234
5	12345
6	123456
7	1234567
8	12345678
9	123456789
10	12345678910
SELECT '--';
--
WITH RECURSIVE recursive_cte AS (SELECT 1 AS n UNION ALL SELECT n + 1 FROM recursive_cte)
SELECT n FROM recursive_cte LIMIT 5;
1
2
3
4
5
SELECT '--';
--
WITH RECURSIVE recursive_cte AS (SELECT materialize(toUInt8(1)) AS n UNION ALL SELECT materialize(toUInt8(n + 1)) FROM recursive_cte WHERE n < 10)
SELECT n FROM recursive_cte FORMAT Null SETTINGS max_recursive_cte_evaluation_depth = 5; -- { serverError TOO_DEEP_RECURSION }