select * from performance_schema.setup_timers;
NAME	TIMER_NAME
wait	CYCLE
select * from performance_schema.setup_timers
where name='Wait';
NAME	TIMER_NAME
wait	CYCLE
select * from performance_schema.setup_timers
where timer_name='CYCLE';
NAME	TIMER_NAME
wait	CYCLE
insert into performance_schema.setup_timers
set name='FOO', timer_name='CYCLE';
ERROR 42000: INSERT command denied to user 'root'@'localhost' for table 'setup_timers'
update performance_schema.setup_timers
set name='FOO';
ERROR HY000: Invalid performance_schema usage.
update performance_schema.setup_timers
set timer_name='MILLISECOND';
select * from performance_schema.setup_timers;
NAME	TIMER_NAME
wait	MILLISECOND
update performance_schema.setup_timers
set timer_name='CYCLE';
delete from performance_schema.setup_timers;
ERROR 42000: DELETE command denied to user 'root'@'localhost' for table 'setup_timers'
delete from performance_schema.setup_timers
where name='Wait';
ERROR 42000: DELETE command denied to user 'root'@'localhost' for table 'setup_timers'
LOCK TABLES performance_schema.setup_timers READ;
UNLOCK TABLES;
LOCK TABLES performance_schema.setup_timers WRITE;
UNLOCK TABLES;