text: DROP TABLE IF EXISTS test_01344;
  CREATE TABLE test_01344 (x String, INDEX idx (x) TYPE set(10) GRANULARITY 1) ENGINE = MergeTree ORDER BY tuple() SETTINGS min_bytes_for_wide_part = 0;
  INSERT INTO test_01344 VALUES ('Hello, world');
  
  SET min_bytes_to_use_mmap_io = 1;
  SELECT * FROM test_01344 WHERE x = 'Hello, world';
  
  SYSTEM FLUSH LOGS;
  SELECT PE.Values FROM system.query_log ARRAY JOIN ProfileEvents AS PE WHERE current_database = currentDatabase() AND event_date >= yesterday() AND query LIKE 'SELECT * FROM test_01344 WHERE x = ''Hello, world''%' AND PE.Names = 'CreatedReadBufferMMap' AND type = 2 ORDER BY event_time DESC LIMIT 1;
  
  DROP TABLE test_01344;
  