小编Uda*_*pta的帖子

你好 DBA 我还有一些问题

1. 为什么我们永远不应该运行 ANALYZE TABLE？
2. 我如何确定需要分析该表/数据库？MySQL 似乎不存储上次更新“stat”的时间？

仅举个例子：- 假设我已经查询过

mysql> show index from goods;
+-------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment |
+-------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| goods |          0 |  PRIMARY |            1 |          id |         A |     7765796 |     NULL |   NULL |      |      BTREE |         |               |
| goods |          1 |  shop_id |            1 |     shop_id |         A …