Query OK,0 rows affected(0.00 sec)mysql>select*from cpa_order where settle_date='2015-11-05' and id>15 \G 3 rows in set(0.00 sec)mysql>select*from information_schema.OPTIMIZER_TRACE\G 在 range 代价计算后,优化器会选择一个...
Query OK,0 rows affected(0.00 sec)mysql>select*from cpa_order where settle_date='2015-11-05' and id>15 \G 3 rows in set(0.00 sec)mysql>select*from information_schema.OPTIMIZER_TRACE\G 在 range 代价计算后,优化器会选择一个...