mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-25 00:52:02 +00:00
13 lines
454 B
MySQL
13 lines
454 B
MySQL
|
DROP TABLE IF EXISTS topk;
|
||
|
|
|
||
|
|
CREATE TABLE topk (val1 String, val2 UInt32) ENGINE = MergeTree ORDER BY val1;
|
||
|
|
|
||
|
|
INSERT INTO topk SELECT toString(number), number FROM numbers(3000000);
|
||
|
|
INSERT INTO topk SELECT toString(number % 10), 999999999 FROM numbers(1000000);
|
||
|
|
|
||
|
|
SELECT arraySort(topK(10)(val1)) FROM topk;
|
||
|
|
SELECT arraySort(topKWeighted(10)(val1, val2)) FROM topk;
|
||
|
|
SELECT topKWeighted(10)(toString(number), number) from numbers(3000000);
|
||
|
|
|
||
|
|
DROP TABLE topk;
|