mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-10 01:25:21 +00:00
14 lines
472 B
SQL
14 lines
472 B
SQL
-- This test creates many threads to test a case when ThreadPool will remove some threads from pool after job is done.
|
|
SET max_block_size = 1, min_insert_block_size_rows = 0, min_insert_block_size_bytes = 0;
|
|
|
|
CREATE TEMPORARY TABLE t (x UInt64);
|
|
INSERT INTO t SELECT * FROM system.numbers LIMIT 1500;
|
|
|
|
SELECT DISTINCT blockSize() FROM t;
|
|
|
|
SET max_threads = 1500;
|
|
|
|
SELECT count() FROM t;
|
|
SELECT sum(sleep(0.1)) FROM t; -- All threads have time to be created.
|
|
SELECT 'Ok.';
|