Possibly orphaned talk subpages (parent missing)

SQL

SELECT page_namespace AS CSns, page_title AS CurrentSubpage
FROM page Ps
WHERE page_namespace>2 AND page_namespace%2=1 AND page_title LIKE "%/%" AND page_is_redirect=0
AND NOT EXISTS (SELECT 1 FROM page WHERE page_namespace=Ps.page_namespace AND page_title=REGEXP_SUBSTR(Ps.page_title, ".*(?=\/)"))
AND NOT EXISTS (SELECT 1 FROM page WHERE page_namespace=Ps.page_namespace AND page_title=REGEXP_SUBSTR(Ps.page_title, ".*?(?=\/)"))
AND NOT EXISTS (SELECT 1 FROM page WHERE page_namespace=Ps.page_namespace-1 AND page_title=Ps.page_title)
ORDER BY page_namespace, page_title

SQL

Checking query status...