mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-30 03:22:14 +00:00
16 lines
1.1 KiB
SQL
16 lines
1.1 KiB
SQL
drop table if exists t;
|
|
|
|
create table t (x UInt64, s String) engine = MergeTree order by x;
|
|
INSERT INTO t SELECT
|
|
number,
|
|
if(number < (8129 * 1024), arrayStringConcat(arrayMap(x -> toString(x), range(number % 128)), ' '), '')
|
|
FROM numbers_mt((8129 * 1024) * 3) settings max_insert_threads=8;
|
|
|
|
-- optimize table t final;
|
|
|
|
select count(), sum(length(s)) from t settings max_threads = 3, read_backoff_min_latency_ms = 1, read_backoff_max_throughput = 1000000000, read_backoff_min_interval_between_events_ms = 1, read_backoff_min_events = 1, read_backoff_min_concurrency = 1;
|
|
select count(), sum(length(s)) from t settings max_threads = 3, read_backoff_min_latency_ms = 1, read_backoff_max_throughput = 1000000000, read_backoff_min_interval_between_events_ms = 1, read_backoff_min_events = 1, read_backoff_min_concurrency = 1;
|
|
select count(), sum(length(s)) from t settings max_threads = 3, read_backoff_min_latency_ms = 1, read_backoff_max_throughput = 1000000000, read_backoff_min_interval_between_events_ms = 1, read_backoff_min_events = 1, read_backoff_min_concurrency = 1;
|
|
|
|
drop table if exists t;
|