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-- Copyright (c) 2015, 2025, Oracle and/or its affiliates.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
DROP FUNCTION IF EXISTS ps_thread_account;
DELIMITER $$
CREATE DEFINER='mysql.sys'@'localhost' FUNCTION ps_thread_account (
in_thread_id BIGINT UNSIGNED
) RETURNS TEXT
COMMENT '
Description
-----------
Return the user@host account for the given Performance Schema thread id.
Parameters
-----------
in_thread_id (BIGINT UNSIGNED):
The id of the thread to return the account for.
Example
-----------
mysql> select thread_id, processlist_user, processlist_host from performance_schema.threads where type = ''foreground'';
+-----------+------------------+------------------+
| thread_id | processlist_user | processlist_host |
+-----------+------------------+------------------+
| 23 | NULL | NULL |
| 30 | root | localhost |
| 31 | msandbox | localhost |
| 32 | msandbox | localhost |
+-----------+------------------+------------------+
4 rows in set (0.00 sec)
mysql> select sys.ps_thread_account(31);
+---------------------------+
| sys.ps_thread_account(31) |
+---------------------------+
| msandbox@localhost |
+---------------------------+
1 row in set (0.00 sec)
'
SQL SECURITY INVOKER
NOT DETERMINISTIC
READS SQL DATA
BEGIN
RETURN (SELECT IF(
type = 'FOREGROUND',
CONCAT(processlist_user, '@', processlist_host),
type
) AS account
FROM `performance_schema`.`threads`
WHERE thread_id = in_thread_id);
END$$
DELIMITER ;
|
