Possibly orphaned talk subpages (parent redirects)

Fork of Possibly orphaned talk subpages (parent missing) by Certes

This query is marked as a draft This query has been published by Certes.

Now changed to check non-article talk namespaces (odd ns except 1)

SQL

SELECT Ps.page_title AS Subpage, rd_namespace AS Rns, rd_title AS Redirect
FROM page Ps
WHERE Ps.page_namespace=1 AND Ps.page_title LIKE "%/%" AND Ps.page_is_redirect=0
JOIN page Pp ON Pp.page_namespace=1 AND Pp.page_title=SUBSTRING_INDEX(Ps.page_title, "/", 1))
JOIN redirect ON rd_page=Pp.page_id
WHERE NOT EXISTS (SELECT 1 FROM page WHERE page_namespace=0 AND page_title=Ps.page_title)
ORDER BY Ps.page_title

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