mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-03 04:52:10 +00:00
16 lines
562 B
MySQL
16 lines
562 B
MySQL
|
-- https://github.com/ClickHouse/ClickHouse/issues/37900
|
||
|
|
|
||
|
|
drop table if exists t;
|
||
|
|
drop table if exists t_mv;
|
||
|
|
create table t (a UInt64) Engine = Null;
|
||
|
|
create materialized view t_mv Engine = Null AS select now() as ts, max(a) from t group by ts;
|
||
|
|
|
||
|
|
insert into t select * from numbers_mt(10e6) settings max_threads = 16, max_insert_threads=16;
|
||
|
|
system flush logs;
|
||
|
|
|
||
|
|
select arrayUniq(thread_ids)>=16 from system.query_log where
|
||
|
|
event_date >= yesterday() and
|
||
|
|
current_database = currentDatabase() and
|
||
|
|
type = 'QueryFinish' and
|
||
|
|
startsWith(query, 'insert');
|