https://bugzilla.wikimedia.org/show_bug.cgi?id=53577

--- Comment #1 from Sean Pringle <[email protected]> ---
Similar:

SELECT /* IndexPager::buildQueryInfo (contributions page unfiltered)
AstroChemist */ 
rev_id,rev_page,rev_text_id,rev_timestamp,rev_comment,rev_user_text,rev_user,rev_minor_edit,rev_deleted,rev_len,rev_parent_id,rev_sha1,user_name,page_namespace,page_title,page_is_new,page_latest,page_is_redirect,page_len,ts_tags
 FROM `revision` INNER JOIN `page` ON ((page_id = rev_page)) LEFT JOIN `user`
ON ((rev_user != 0) AND (user_id = rev_user)) LEFT JOIN `user_groups` ON
((ug_user = rev_user) AND ug_group = 'bot') LEFT JOIN `tag_summary` ON
((ts_rev_id=rev_id)) INNER JOIN `change_tag` FORCE INDEX (change_tag_tag_id) ON
((ct_rev_id=rev_id))  WHERE (rev_user >19555425) AND (ug_group IS NULL) AND
(page_namespace != '0') AND ((rev_deleted & 4) = 0) AND ct_tag = 'visualeditor'
AND (rev_timestamp<'20140101000000')  ORDER BY rev_timestamp DESC LIMIT 601;

With force: 10+ mins

Without force: 8s

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