AP districts - Previous month edits, unique human editors

SQL

SET @pmonthbegin=DATE_FORMAT(CURDATE() - INTERVAL 1 MONTH,'%Y-%m-01'),
 @nmonthbegin=DATE_FORMAT(CURDATE() , '%Y-%m-01'),
 @pmonthts=REPLACE(@pmonthbegin,"-",""),
@nmonthts=REPLACE(@nmonthbegin,"-","");
SELECT 
    subqres.page_title,
    COUNT(DISTINCT subqres.user_name) as count_editors,
    SUM(subqres.Edits) as tot_edit
FROM (
  SELECT
   page_title,
   user_name,
   COUNT(*) as Edits
FROM page
JOIN categorylinks ON cl_from = page_id  AND cl_to="Districts_of_Andhra_Pradesh" AND cl_type="page"
JOIN revision      ON page_id = rev_page
JOIN actor      ON rev_actor = actor_id
JOIN user   ON user_id =actor_user
where   rev_actor != 0 AND page_namespace=0 
AND LEFT(rev_timestamp,8)  >= @pmonthts  AND LEFT(rev_timestamp,8)  < @nmonthts
AND NOT (user_name LIKE '%AWB%' OR user_name  LIKE '%Bot%' OR user_name LIKE'%bot%' OR  user_name LIKE '%BOT%' OR user_name ='CommonsDelinker')
  GROUP BY page_title,user_name) as subqres
GROUP BY subqres.page_title
ORDER BY count_editors DESC, page_title ASC
LIMIT 100;
SQL

Checking query status...
