mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-20 05:05:38 +00:00
39 lines
1.2 KiB
SQL
39 lines
1.2 KiB
SQL
-- Tags: no-parallel
|
|
|
|
DROP TABLE IF EXISTS t_async_inserts_flush;
|
|
|
|
CREATE TABLE t_async_inserts_flush (a UInt64) ENGINE = Memory;
|
|
|
|
SET async_insert = 1;
|
|
SET wait_for_async_insert = 0;
|
|
-- Disable adaptive timeout to prevent immediate push of the first message (if the queue last push was old)
|
|
SET async_insert_use_adaptive_busy_timeout=0;
|
|
SET async_insert_busy_timeout_max_ms = 10000000;
|
|
|
|
INSERT INTO t_async_inserts_flush VALUES (1) (2);
|
|
|
|
INSERT INTO t_async_inserts_flush FORMAT JSONEachRow {"a": 10} {"a": 20};
|
|
|
|
INSERT INTO t_async_inserts_flush FORMAT JSONEachRow {"a": "str"};
|
|
|
|
INSERT INTO t_async_inserts_flush FORMAT JSONEachRow {"a": 100} {"a": 200};
|
|
|
|
INSERT INTO t_async_inserts_flush VALUES (3) (4) (5);
|
|
|
|
SELECT sleep(1) FORMAT Null;
|
|
|
|
SELECT format, length(entries.query_id) FROM system.asynchronous_inserts
|
|
WHERE database = currentDatabase() AND table = 't_async_inserts_flush'
|
|
ORDER BY format;
|
|
|
|
SELECT count() FROM t_async_inserts_flush;
|
|
|
|
SYSTEM FLUSH ASYNC INSERT QUEUE;
|
|
|
|
SELECT count() FROM system.asynchronous_inserts
|
|
WHERE database = currentDatabase() AND table = 't_async_inserts_flush';
|
|
|
|
SELECT count() FROM t_async_inserts_flush;
|
|
|
|
DROP TABLE t_async_inserts_flush;
|