select * from performance_schema.EVENTS_WAITS_CURRENT
where event_name like 'Wait/Synch/%' limit 1;
THREAD_ID	EVENT_ID	EVENT_NAME	SOURCE	TIMER_START	TIMER_END	TIMER_WAIT	SPINS	OBJECT_SCHEMA	OBJECT_NAME	OBJECT_TYPE	OBJECT_INSTANCE_BEGIN	NESTING_EVENT_ID	OPERATION	NUMBER_OF_BYTES	FLAGS
#	#	#	#	#	#	#	#	NULL	NULL	NULL	#	NULL	#	NULL	0
select * from performance_schema.EVENTS_WAITS_CURRENT
where event_name='FOO';
THREAD_ID	EVENT_ID	EVENT_NAME	SOURCE	TIMER_START	TIMER_END	TIMER_WAIT	SPINS	OBJECT_SCHEMA	OBJECT_NAME	OBJECT_TYPE	OBJECT_INSTANCE_BEGIN	NESTING_EVENT_ID	OPERATION	NUMBER_OF_BYTES	FLAGS
insert into performance_schema.EVENTS_WAITS_CURRENT
set thread_id='1', event_id=1,
event_name='FOO', timer_start=1, timer_end=2, timer_wait=3;
ERROR 42000: INSERT command denied to user 'root'@'localhost' for table 'EVENTS_WAITS_CURRENT'
update performance_schema.EVENTS_WAITS_CURRENT
set timer_start=12;
ERROR 42000: UPDATE command denied to user 'root'@'localhost' for table 'EVENTS_WAITS_CURRENT'
update performance_schema.EVENTS_WAITS_CURRENT
set timer_start=12 where thread_id=0;
ERROR 42000: UPDATE command denied to user 'root'@'localhost' for table 'EVENTS_WAITS_CURRENT'
delete from performance_schema.EVENTS_WAITS_CURRENT
where thread_id=1;
ERROR 42000: DELETE command denied to user 'root'@'localhost' for table 'EVENTS_WAITS_CURRENT'
delete from performance_schema.EVENTS_WAITS_CURRENT;
ERROR 42000: DELETE command denied to user 'root'@'localhost' for table 'EVENTS_WAITS_CURRENT'
LOCK TABLES performance_schema.EVENTS_WAITS_CURRENT READ;
ERROR 42000: SELECT,LOCK TABL command denied to user 'root'@'localhost' for table 'EVENTS_WAITS_CURRENT'
UNLOCK TABLES;
LOCK TABLES performance_schema.EVENTS_WAITS_CURRENT WRITE;
ERROR 42000: SELECT,LOCK TABL command denied to user 'root'@'localhost' for table 'EVENTS_WAITS_CURRENT'
UNLOCK TABLES;