alter table performance_schema.EVENTS_WAITS_SUMMARY_BY_INSTANCE add column foo integer;
ERROR 42000: Access denied for user 'root'@'localhost' to database 'performance_schema'
truncate table performance_schema.EVENTS_WAITS_SUMMARY_BY_INSTANCE;
ALTER TABLE performance_schema.EVENTS_WAITS_SUMMARY_BY_INSTANCE ADD INDEX test_index(EVENT_NAME);
ERROR 42000: Access denied for user 'root'@'localhost' to database 'performance_schema'
CREATE UNIQUE INDEX test_index ON performance_schema.EVENTS_WAITS_SUMMARY_BY_INSTANCE(EVENT_NAME);
ERROR 42000: Access denied for user 'root'@'localhost' to database 'performance_schema'