sub-subcat cats with cats & WD items

SQL

use enwiki_p;
#SELECT pp.pp_value, p3.page_title, GROUP_CONCAT(c_up.cl_to SEPARATOR ' / ') AS cats 
SELECT p3.page_title, GROUP_CONCAT(c_up.cl_to SEPARATOR ' / ') AS cats 
FROM categorylinks AS c1
JOIN page AS p1 ON c1.cl_from=p1.page_id AND p1.page_namespace=14 AND p1.page_is_redirect=0
JOIN categorylinks AS c2 ON c2.cl_to = p1.page_title
JOIN page AS p2 ON c2.cl_from=p2.page_id AND p2.page_namespace=14 AND p2.page_is_redirect=0
JOIN categorylinks AS c3 ON c3.cl_to = p2.page_title
JOIN page AS p3 ON c3.cl_from=p3.page_id AND p3.page_namespace=14 AND p3.page_is_redirect=0
JOIN categorylinks AS c_up ON c_up.cl_from=p2.page_id
#JOIN page_props AS pp ON pp.pp_page = p3.page_id AND pp.pp_propname = 'wikibase_item'
WHERE c1.cl_to='Populated_places_in_Scotland_by_council_area'
GROUP BY p3.page_title;
#LIMIT 500;
SQL

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