mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-21 15:12:02 +00:00
66 lines
1.5 KiB
Plaintext
66 lines
1.5 KiB
Plaintext
-- { echo }
|
|
-- Another test for window functions because the other one is too long.
|
|
set allow_experimental_window_functions = 1;
|
|
-- some craziness with a mix of materialized and unmaterialized const columns
|
|
-- after merging sorted transform, that used to break the peer group detection in
|
|
-- the window transform.
|
|
CREATE TABLE order_by_const
|
|
(
|
|
`a` UInt64,
|
|
`b` UInt64,
|
|
`c` UInt64,
|
|
`d` UInt64
|
|
)
|
|
ENGINE = MergeTree
|
|
ORDER BY (a, b)
|
|
SETTINGS index_granularity = 8192;
|
|
truncate table order_by_const;
|
|
system stop merges order_by_const;
|
|
INSERT INTO order_by_const(a, b, c, d) VALUES (1, 1, 101, 1), (1, 2, 102, 1), (1, 3, 103, 1), (1, 4, 104, 1);
|
|
INSERT INTO order_by_const(a, b, c, d) VALUES (1, 5, 104, 1), (1, 6, 105, 1), (2, 1, 106, 2), (2, 1, 107, 2);
|
|
INSERT INTO order_by_const(a, b, c, d) VALUES (2, 2, 107, 2), (2, 3, 108, 2), (2, 4, 109, 2);
|
|
SELECT row_number() OVER (order by 1, a) FROM order_by_const;
|
|
1
|
|
2
|
|
3
|
|
4
|
|
5
|
|
6
|
|
7
|
|
8
|
|
9
|
|
10
|
|
11
|
|
drop table order_by_const;
|
|
-- expressions in window frame
|
|
select count() over (rows between 1 + 1 preceding and 1 + 1 following) from numbers(10);
|
|
3
|
|
4
|
|
5
|
|
5
|
|
5
|
|
5
|
|
5
|
|
5
|
|
4
|
|
3
|
|
-- signed and unsigned in offset do not cause logical error
|
|
select count() over (rows between 2 following and 1 + -1 following) FROM numbers(10); -- { serverError 36 }
|
|
-- default arguments of lagInFrame can be a subtype of the argument
|
|
select number,
|
|
lagInFrame(toNullable(number), 2, null) over w,
|
|
lagInFrame(number, 2, 1) over w
|
|
from numbers(10)
|
|
window w as (order by number)
|
|
;
|
|
0 \N 1
|
|
1 \N 1
|
|
2 0 0
|
|
3 1 1
|
|
4 2 2
|
|
5 3 3
|
|
6 4 4
|
|
7 5 5
|
|
8 6 6
|
|
9 7 7
|