Watch page titles consistency (cswiki)

SQL

USE wikidatawiki_p;
SELECT *
FROM (SELECT * FROM pagelinks WHERE pl_from_namespace = 121 AND pl_namespace = 0) AS frompt
JOIN (SELECT * FROM page WHERE page_is_redirect = 1 AND page_namespace = 0) AS redirs
	ON page_title = frompt.pl_title
JOIN (SELECT * FROM pagelinks WHERE pl_from_namespace = 4 AND pl_namespace = 0) AS fromconstr
	ON fromconstr.pl_title = frompt.pl_title
JOIN (SELECT * FROM page WHERE page_namespace = 4 AND page_title LIKE "Database_reports/Constraint_violations/%") AS constr
	ON constr.page_id AND fromconstr.pl_from
LIMIT 10;

SQL

Checking query status...