ClickHouse/tests/queries/0_stateless/01605_dictinct_two_level.sql

26 lines
937 B
MySQL
Raw Normal View History

SET group_by_two_level_threshold_bytes = 1;
SET group_by_two_level_threshold = 1;
SELECT groupArray(DISTINCT toString(number % 10)) FROM numbers_mt(50000)
GROUP BY number ORDER BY number LIMIT 10
SETTINGS max_threads = 2, max_block_size = 2000;
DROP TABLE IF EXISTS dictinct_two_level;
CREATE TABLE dictinct_two_level (
time DateTime64(3),
domain String,
subdomain String
) ENGINE = MergeTree ORDER BY time;
INSERT INTO dictinct_two_level SELECT 1546300800000, 'test.com', concat('foo', toString(number % 10000)) from numbers(10000);
INSERT INTO dictinct_two_level SELECT 1546300800000, concat('test.com', toString(number / 10000)) , concat('foo', toString(number % 10000)) from numbers(10000);
SELECT
domain, groupArraySample(5, 11111)(DISTINCT subdomain) AS example_subdomains
FROM dictinct_two_level
GROUP BY domain ORDER BY domain, example_subdomains
LIMIT 10;
DROP TABLE IF EXISTS dictinct_two_level;