SHOW ANALYZE STATUS
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。