mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-16 19:32:07 +00:00
53 lines
1.2 KiB
Plaintext
53 lines
1.2 KiB
Plaintext
-- { echo }
|
|
set allow_experimental_window_functions = 1;
|
|
select row_number() over (order by dummy) from (select * from remote('127.0.0.{1,2}', system, one));
|
|
1
|
|
2
|
|
select row_number() over (order by dummy) from remote('127.0.0.{1,2}', system, one);
|
|
1
|
|
2
|
|
select max(identity(dummy + 1)) over () from remote('127.0.0.{1,2}', system, one);
|
|
1
|
|
1
|
|
drop table if exists t_01568;
|
|
create table t_01568 engine Log as select intDiv(number, 3) p, number from numbers(9);
|
|
select sum(number) over w, max(number) over w from t_01568 window w as (partition by p);
|
|
3 2
|
|
3 2
|
|
3 2
|
|
12 5
|
|
12 5
|
|
12 5
|
|
21 8
|
|
21 8
|
|
21 8
|
|
select sum(number) over w, max(number) over w from remote('127.0.0.{1,2}', '', t_01568) window w as (partition by p);
|
|
6 2
|
|
6 2
|
|
6 2
|
|
6 2
|
|
6 2
|
|
6 2
|
|
24 5
|
|
24 5
|
|
24 5
|
|
24 5
|
|
24 5
|
|
24 5
|
|
42 8
|
|
42 8
|
|
42 8
|
|
42 8
|
|
42 8
|
|
42 8
|
|
select distinct sum(number) over w, max(number) over w from remote('127.0.0.{1,2}', '', t_01568) window w as (partition by p);
|
|
6 2
|
|
24 5
|
|
42 8
|
|
-- window functions + aggregation w/shards
|
|
select groupArray(groupArray(number)) over (rows unbounded preceding) from remote('127.0.0.{1,2}', '', t_01568) group by mod(number, 3);
|
|
[[0,3,6,0,3,6]]
|
|
[[0,3,6,0,3,6],[1,4,7,1,4,7]]
|
|
[[0,3,6,0,3,6],[1,4,7,1,4,7],[2,5,8,2,5,8]]
|
|
drop table t_01568;
|