SHOW STATS_META
你可以使用 SHOW STATS_META 查看某个表中的行数以及该表中被更改的行数。在使用该语句时，可以通过 ShowLikeOrWhere 子句过滤所需的信息。
目前，SHOW STATS_META 语句输出以下列：
| 列名 | 描述 |
|---|---|
| Db_name | 数据库名称 |
| Table_name | 表名称 |
| Partition_name | 分区名称 |
| Update_time | 最后更新时间 |
| Modify_count | 被修改的行数 |
| Row_count | 总行数 |
| Last_analyze_time | 表最后一次被分析的时间 |
语法
- ShowStatsMetaStmt
- ShowLikeOrWhere
ShowStatsMetaStmt ::=
"SHOW" "STATS_META" ShowLikeOrWhere?
ShowLikeOrWhere ::=
"LIKE" SimpleExpr
| "WHERE" Expression
示例
SHOW STATS_META;
+---------+------------+----------------+---------------------+--------------+-----------+---------------------+
| Db_name | Table_name | Partition_name | Update_time | Modify_count | Row_count | Last_analyze_time |
+---------+------------+----------------+---------------------+--------------+-----------+---------------------+
| test | t0 | | 2025-07-27 16:58:00 | 0 | 0 | 2025-07-27 16:58:00 |
| test | t1 | | 2025-07-27 16:58:04 | 0 | 0 | 2025-07-27 16:58:04 |
| test | t2 | | 2025-07-27 16:58:11 | 0 | 0 | 2025-07-27 16:58:11 |
| test | s | | 2025-07-27 19:46:43 | 0 | 0 | 2025-07-27 19:46:43 |
| test | t | | 2025-07-27 12:04:21 | 0 | 0 | 2025-07-27 12:04:21 |
+---------+------------+----------------+---------------------+--------------+-----------+---------------------+
5 rows in set (0.00 sec)
SHOW STATS_META WHERE table_name = 't2';
+---------+------------+----------------+---------------------+--------------+-----------+---------------------+
| Db_name | Table_name | Partition_name | Update_time | Modify_count | Row_count | Last_analyze_time |
+---------+------------+----------------+---------------------+--------------+-----------+---------------------+
| test | t2 | | 2025-07-27 16:58:11 | 0 | 0 | 2025-07-27 16:58:11 |
+---------+------------+----------------+---------------------+--------------+-----------+---------------------+
1 row in set (0.00 sec)
MySQL 兼容性
该语句是 TiDB 对 MySQL 语法的扩展。