mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-20 06:32:08 +00:00
17 lines
837 B
MySQL
17 lines
837 B
MySQL
|
drop table if exists src;
|
||
|
|
drop table if exists dst;
|
||
|
|
drop table if exists mv1;
|
||
|
|
drop table if exists mv2;
|
||
|
|
|
||
|
|
create table src (key Int) engine=Null();
|
||
|
|
create table dst (key Int) engine=Null();
|
||
|
|
create materialized view mv1 to dst as select * from src;
|
||
|
|
create materialized view mv2 to dst as select * from src;
|
||
|
|
|
||
|
|
insert into src select * from numbers(1e6) settings log_queries=1, max_untracked_memory=0, parallel_view_processing=1;
|
||
|
|
system flush logs;
|
||
|
|
|
||
|
|
-- { echo }
|
||
|
|
select view_name, read_rows, read_bytes, written_rows, written_bytes from system.query_views_log where startsWith(view_name, currentDatabase() || '.mv') order by view_name format Vertical;
|
||
|
|
select read_rows, read_bytes, written_rows, written_bytes from system.query_log where type = 'QueryFinish' and query_kind = 'Insert' and current_database = currentDatabase() format Vertical;
|