mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-19 22:22:00 +00:00
70 lines
2.2 KiB
SQL
70 lines
2.2 KiB
SQL
-- Tags: no-parallel, no-fasttest, long
|
|
|
|
SET max_memory_usage='20G';
|
|
SET enable_filesystem_cache_on_write_operations = 0;
|
|
|
|
DROP TABLE IF EXISTS test;
|
|
CREATE TABLE test (key UInt32, value String) Engine=MergeTree() ORDER BY key SETTINGS storage_policy='s3_cache';
|
|
INSERT INTO test SELECT * FROM generateRandom('key UInt32, value String') LIMIT 10000;
|
|
|
|
SET remote_filesystem_read_method='threadpool';
|
|
|
|
SELECT 1, * FROM test LIMIT 10 FORMAT Null;
|
|
|
|
SYSTEM FLUSH LOGS;
|
|
SELECT query,
|
|
ProfileEvents['RemoteFSReadBytes'] > 0 as remote_fs_read,
|
|
ProfileEvents['RemoteFSCacheReadBytes'] > 0 as remote_fs_cache_read,
|
|
ProfileEvents['RemoteFSCacheDownloadBytes'] > 0 as remote_fs_read_and_download
|
|
FROM system.query_log
|
|
WHERE query LIKE 'SELECT 1, * FROM test LIMIT%'
|
|
AND type = 'QueryFinish'
|
|
AND current_database = currentDatabase()
|
|
ORDER BY query_start_time DESC
|
|
LIMIT 1;
|
|
|
|
SET remote_filesystem_read_method='read';
|
|
|
|
SELECT 2, * FROM test LIMIT 10 FORMAT Null;
|
|
|
|
SYSTEM FLUSH LOGS;
|
|
SELECT query,
|
|
ProfileEvents['RemoteFSReadBytes'] > 0 as remote_fs_read,
|
|
ProfileEvents['RemoteFSCacheReadBytes'] > 0 as remote_fs_cache_read,
|
|
ProfileEvents['RemoteFSCacheDownloadBytes'] > 0 as remote_fs_read_and_download
|
|
FROM system.query_log
|
|
WHERE query LIKE 'SELECT 2, * FROM test LIMIT%'
|
|
AND type = 'QueryFinish'
|
|
AND current_database = currentDatabase()
|
|
ORDER BY query_start_time DESC
|
|
LIMIT 1;
|
|
|
|
SET remote_filesystem_read_method='threadpool';
|
|
|
|
SELECT * FROM test WHERE value LIKE '%abc%' ORDER BY value LIMIT 10 FORMAT Null;
|
|
|
|
SET enable_filesystem_cache_on_write_operations = 1;
|
|
|
|
TRUNCATE TABLE test;
|
|
SELECT count() FROM test;
|
|
|
|
SYSTEM DROP FILESYSTEM CACHE;
|
|
|
|
INSERT INTO test SELECT * FROM generateRandom('key UInt32, value String') LIMIT 10000;
|
|
|
|
SELECT 3, * FROM test LIMIT 10 FORMAT Null;
|
|
|
|
SYSTEM FLUSH LOGS;
|
|
SELECT query,
|
|
ProfileEvents['RemoteFSReadBytes'] > 0 as remote_fs_read,
|
|
ProfileEvents['RemoteFSCacheReadBytes'] > 0 as remote_fs_cache_read,
|
|
ProfileEvents['RemoteFSCacheDownloadBytes'] > 0 as remote_fs_read_and_download
|
|
FROM system.query_log
|
|
WHERE query LIKE 'SELECT 3, * FROM test LIMIT%'
|
|
AND type = 'QueryFinish'
|
|
AND current_database = currentDatabase()
|
|
ORDER BY query_start_time DESC
|
|
LIMIT 1;
|
|
|
|
DROP TABLE test;
|