INFORMATION_SCHEMA 线程池表已被弃用，并可能在 MySQL 的未来版本中被移除。您应改用作为 Performance Schema 表提供的版本。请参阅 第 29.12.16 节，“Performance Schema 线程池表”。应用程序应从旧表过渡到新表。例如，如果应用程序使用此查询：The INFORMATION_SCHEMA thread pool tables are deprecated, and subject to removal in a future version of MySQL. You should use the versions available as Performance Schema tables instead. See Section 29.12.16, “Performance Schema Thread Pool Tables”. Applications should transition away from the old tables to the new tables. For example, if an application uses this query:

SELECT * FROM INFORMATION_SCHEMA.TP_THREAD_STATE;

应用程序应改用此查询：The application should use this query instead:

SELECT * FROM performance_schema.tp_thread_state;