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YZWL/IDEA/sys/ps_thread_account.sql

46 lines
1.4 KiB

create
definer = `mysql.sys`@localhost function sys.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 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;