在清理mysql数据表后,执行optimize优化和整理文件碎片,Msg_text中提示“表不支持优化,使用重新创建或者分析进行替代”
mysql> optimize table zabbix.history_uint;
+------------+----------+----------+-------------------------------------------------------------------+
| Table | Op | Msg_type | Msg_text |
+------------+----------+----------+-------------------------------------------------------------------+
| zabbix.history_uint | optimize | note | Table does not support optimize, doing recreate + analyze instead |
| zabbix.history_uint | optimize | status | OK |
+------------+----------+----------+-------------------------------------------------------------------+
2 rows in set (6276.15 sec)
说明:在默认情况下,对InnoDB引擎表使用optimize table,会提示「 Table does not support optimize, doing recreate + analyze instead」的信息。使用—skip-new或—safe-mode选项启动mysql。就可以使OPTIMIZE TABLE对其它表类型起作用。