Question

SHOW ANALYZE STATUS 语句提供 TiDB 正在执行的统计信息收集任务以及有限条历史任务记录。

语法图

ShowStmt:

ShowTargetFilterable:

示例

create table t(x int, index idx(x)) partition by hash(x) partition 4;
analyze table t;
show analyze status;

+--------------+------------+----------------+-------------------+----------------+---------------------+----------+
| Table_schema | Table_name | Partition_name | Job_info          | Processed_rows | Start_time          | State    |
+--------------+------------+----------------+-------------------+----------------+---------------------+----------+
| test         | t          | p1             | analyze columns   |              0 | 2020-05-25 17:23:55 | finished |
| test         | t          | p0             | analyze columns   |              0 | 2020-05-25 17:23:55 | finished |
| test         | t          | p0             | analyze index idx |              0 | 2020-05-25 17:23:55 | finished |
| test         | t          | p1             | analyze index idx |              0 | 2020-05-25 17:23:55 | finished |
| test         | t          | p2             | analyze index idx |              0 | 2020-05-25 17:23:55 | finished |
| test         | t          | p3             | analyze index idx |              0 | 2020-05-25 17:23:55 | finished |
| test         | t          | p3             | analyze columns   |              0 | 2020-05-25 17:23:55 | finished |
| test         | t          | p2             | analyze columns   |              0 | 2020-05-25 17:23:55 | finished |
+--------------+------------+----------------+-------------------+----------------+---------------------+----------+
8 rows in set (0.00 sec)

MySQL 兼容性

该语句是 TiDB 对 MySQL 语法的扩展。

另请参阅

• ANALYZE_STATUS 表