wangbo opened a new pull request, #38701:
URL: https://github.com/apache/doris/pull/38701

   ## Proposed changes
   query schema table processlist support show all fe
   
   ```
   mysql [information_schema]>select * from processlist;
   
+-------------------+------+------+------------------+---------------------+----------+--------------------+---------+------+-------+-----------------------------------+---------------------------+------------+---------------+
   | CURRENT_CONNECTED | ID   | USER | HOST             | LOGIN_TIME          | 
CATALOG  | DB                 | COMMAND | TIME | STATE | QUERY_ID               
           | INFO                      | FE         | CLOUD_CLUSTER |
   
+-------------------+------+------+------------------+---------------------+----------+--------------------+---------+------+-------+-----------------------------------+---------------------------+------------+---------------+
   | No                | 0    | root | ip1:15070 | 2024-08-01 16:38:40 | 
internal |                    | Sleep   |  349 | EOF   | 
566a4d49ff244ad1-a70a065f3b3351ae | show frontends            | ip1 | NULL      
    |
   | No                | 1    | root | ip1:19718 | 2024-08-01 16:44:58 | 
internal | information_schema | Query   |    0 | OK    | 
f19c4b24094441bd-a6b68c07938ed1f2 | select * from processlist | ip1 | NULL      
    |
   
+-------------------+------+------+------------------+---------------------+----------+--------------------+---------+------+-------+-----------------------------------+---------------------------+------------+---------------+
   2 rows in set (0.05 sec)
   
   mysql [information_schema]>set show_all_fe_connection = true;
   Query OK, 0 rows affected (0.00 sec)
   
   mysql [information_schema]>select * from processlist;
   
+-------------------+------+------+------------------+---------------------+----------+--------------------+---------+------+-------+-----------------------------------+----------------------------------+------------+---------------+
   | CURRENT_CONNECTED | ID   | USER | HOST             | LOGIN_TIME          | 
CATALOG  | DB                 | COMMAND | TIME | STATE | QUERY_ID               
           | INFO                             | FE         | CLOUD_CLUSTER |
   
+-------------------+------+------+------------------+---------------------+----------+--------------------+---------+------+-------+-----------------------------------+----------------------------------+------------+---------------+
   | No                | 0    | root | ip1:15070 | 2024-08-01 16:38:40 | 
internal |                    | Sleep   |  360 | EOF   | 
566a4d49ff244ad1-a70a065f3b3351ae | show frontends                   | ip1 | 
NULL          |
   | No                | 1    | root | ip1:19718 | 2024-08-01 16:44:58 | 
internal | information_schema | Query   |    0 | OK    | 
82560d98af964c69-b9c61bc0b5cf564a | select * from processlist        | ip1 | 
NULL          |
   | No                | 0    | root | ip2:54660 | 2024-08-01 16:45:18 | 
internal |                    | Sleep   |   68 | EOF   | 
a555a28a1b094f69-ad25198d5b54f166 | select @@version_comment limit 1 | ip2 | 
NULL          |
   
+-------------------+------+------+------------------+---------------------+----------+--------------------+---------+------+-------+-----------------------------------+----------------------------------+------------+---------------+
   3 rows in set (0.02 sec)
   ```
   


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