Files
doris/be/src/exec
Zhengguo Yang 198ba78595 [Feature] Add update time to show table status (#6117)
Add update time to show table status

```
MySQL [test_query_qa]> show table status;
+----------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+---------------------+-----------+----------+----------------+---------+
| Name     | Engine | Version | Row_format | Rows | Avg_row_length | Data_length | Max_data_length | Index_length | Data_free | Auto_increment | Create_time         | Update_time         | Check_time          | Collation | Checksum | Create_options | Comment |
+----------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+---------------------+-----------+----------+----------------+---------+
| bigtable | Doris  |    NULL | NULL       | NULL |           NULL |        NULL |            NULL |         NULL |      NULL |           NULL | 2021-06-29 17:09:28 | 2021-06-29 17:17:28 | 1970-01-01 07:59:59 | utf-8     |     NULL | NULL           | OLAP    |
| test     | Doris  |    NULL | NULL       | NULL |           NULL |        NULL |            NULL |         NULL |      NULL |           NULL | 2021-06-29 17:09:26 | 2021-06-29 17:17:28 | 1970-01-01 07:59:59 | utf-8     |     NULL | NULL           | OLAP    |
| baseall  | Doris  |    NULL | NULL       | NULL |           NULL |        NULL |            NULL |         NULL |      NULL |           NULL | 2021-06-29 17:09:26 | 2021-06-29 17:17:26 | 1970-01-01 07:59:59 | utf-8     |     NULL | NULL           | OLAP    |
+----------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+---------------------+-----------+----------+----------------+---------+
3 rows in set (0.002 sec)
```
2021-07-07 10:27:14 +08:00
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