1alter table performance_schema.setup_consumers add column foo integer; 2ERROR 42000: Access denied for user 'root'@'localhost' to database 'performance_schema' 3truncate table performance_schema.setup_consumers; 4ERROR HY000: Invalid performance_schema usage. 5ALTER TABLE performance_schema.setup_consumers ADD INDEX test_index(NAME); 6ERROR 42000: Access denied for user 'root'@'localhost' to database 'performance_schema' 7CREATE UNIQUE INDEX test_index ON performance_schema.setup_consumers(NAME); 8ERROR 42000: Access denied for user 'root'@'localhost' to database 'performance_schema' 9