1select * from performance_schema.events_waits_summary_by_host_by_event_name 2where event_name like 'Wait/Synch/%' limit 1; 3HOST EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT 4# # # # # # # 5select * from performance_schema.events_waits_summary_by_host_by_event_name 6where event_name='FOO'; 7HOST EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT 8insert into performance_schema.events_waits_summary_by_host_by_event_name 9set event_name='FOO', thread_id=1, 10count_star=1, sum_timer_wait=2, min_timer_wait=3, 11avg_timer_wait=4, max_timer_wait=5; 12ERROR 42000: INSERT command denied to user 'root'@'localhost' for table 'events_waits_summary_by_host_by_event_name' 13update performance_schema.events_waits_summary_by_host_by_event_name 14set count_star=12; 15ERROR 42000: UPDATE command denied to user 'root'@'localhost' for table 'events_waits_summary_by_host_by_event_name' 16update performance_schema.events_waits_summary_by_host_by_event_name 17set count_star=12 where event_name like "FOO"; 18ERROR 42000: UPDATE command denied to user 'root'@'localhost' for table 'events_waits_summary_by_host_by_event_name' 19delete from performance_schema.events_waits_summary_by_host_by_event_name 20where count_star=1; 21ERROR 42000: DELETE command denied to user 'root'@'localhost' for table 'events_waits_summary_by_host_by_event_name' 22delete from performance_schema.events_waits_summary_by_host_by_event_name; 23ERROR 42000: DELETE command denied to user 'root'@'localhost' for table 'events_waits_summary_by_host_by_event_name' 24LOCK TABLES performance_schema.events_waits_summary_by_host_by_event_name READ; 25ERROR 42000: SELECT, LOCK TABLES command denied to user 'root'@'localhost' for table 'events_waits_summary_by_host_by_event_name' 26UNLOCK TABLES; 27LOCK TABLES performance_schema.events_waits_summary_by_host_by_event_name WRITE; 28ERROR 42000: SELECT, LOCK TABLES command denied to user 'root'@'localhost' for table 'events_waits_summary_by_host_by_event_name' 29UNLOCK TABLES; 30