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