Learning pattern endorsements per month

SQL

SELECT COUNT(rev_user_text) AS endorsements, 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`
FROM metawiki_p.page AS p 
JOIN metawiki_p.categorylinks AS cl 
ON p.page_id = cl.cl_from 
JOIN metawiki_p.revision AS r
ON p.page_id = r.rev_page
WHERE cl.cl_to IN ("Learning_patterns")
AND cl.cl_type = "page"
AND p.page_namespace = 200
AND p.page_title LIKE "Learning_patterns/%"
AND (r.rev_comment LIKE ("%Endorse%") OR r.rev_comment LIKE ("%endorse%"))
AND r.rev_user_text NOT LIKE "%(WMF)"
GROUP BY `year`, `month`
ORDER BY `year` ASC, `month` ASC;
SQL

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