mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-10-19 23:10:50 +00:00
13 lines
745 B
SQL
13 lines
745 B
SQL
DROP TABLE IF EXISTS group_uniq_arr_int;
|
|
CREATE TABLE group_uniq_arr_int ENGINE = Memory AS
|
|
SELECT g as id, if(c == 0, [v], if(c == 1, emptyArrayInt64(), [v, v])) as v FROM
|
|
(SELECT intDiv(number%1000000, 100) as v, intDiv(number%100, 10) as g, number%10 as c FROM system.numbers WHERE c < 3 LIMIT 10000000);
|
|
|
|
SELECT length(groupUniqArray(v)) FROM group_uniq_arr_int GROUP BY id ORDER BY id;
|
|
SELECT length(groupUniqArray(v)) FROM remote('127.0.0.{2,3,4,5}', currentDatabase(), 'group_uniq_arr_int') GROUP BY id ORDER BY id;
|
|
SELECT length(groupUniqArray(10)(v)) FROM group_uniq_arr_int GROUP BY id ORDER BY id;
|
|
SELECT length(groupUniqArray(100000)(v)) FROM group_uniq_arr_int GROUP BY id ORDER BY id;
|
|
|
|
|
|
DROP TABLE IF EXISTS group_uniq_arr_int;
|