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