Total admin actions per month on idwiki

SQL

use idwiki_p;
SELECT user_name, user_editcount, user_registration, rev_timestamp AS 'Last edit', log_timestamp AS 'Last log', ug1.ug_group AS 'user_group'
FROM `user`
LEFT JOIN user_groups ug1
	ON user_id = ug1.ug_user AND ug1.ug_group IN ('sysop','bureaucrat')

JOIN revision_userindex
	ON rev_id = (SELECT rev_id FROM revision_userindex
                 WHERE user_id = rev_actor
                 ORDER BY rev_timestamp DESC
                 LIMIT 1)
                 
JOIN logging_userindex
	ON log_id = (SELECT log_id FROM logging_userindex
                 WHERE user_id = log_actor
                 ORDER BY log_timestamp DESC
                 LIMIT 1)

  ORDER BY rev_timestamp
;
SQL

Checking query status...
