#count IdeaLab ideas created per month

SELECT EXTRACT(YEAR FROM DATE_FORMAT(rev_timestamp,'%Y%m%d%H%i%s')) AS `year`, 

EXTRACT(MONTH FROM DATE_FORMAT(rev_timestamp,'%Y%m%d%H%i%s')) AS `month`, 

COUNT(rev_id) AS ideas_created 

FROM metawiki_p.revision r

INNER JOIN metawiki_p.page AS p

ON r.rev_page = p.page_id 

INNER JOIN metawiki_p.categorylinks AS cl 

ON p.page_id = cl.cl_from

WHERE p.page_namespace = 200

AND cl.cl_to IN ("IdeaLab/Ideas/IdeaLab") 

AND r.rev_parent_id = 0

GROUP BY `year`, `month` 

ORDER BY `year` ASC, `month` ASC;