Likely partially disambiguated titles (2)

Fork of Likely partially disambiguated titles (1) by Certes

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

On enwp, see [[Wikipedia:Partially_disambiguated_page_names#Partially_disambiguated_article_titles_to_be_fixed]] and its talk page
See also query 75886

SQL

SELECT REGEXP_REPLACE(page_title, "(.*?\\().*?([^_\\W]+\\))", "\\1\\2") AS PT,
 COUNT(*) AS N,
 MIN(CASE WHEN page_title REGEXP "\\([^_\\W]+\\)$" THEN NULL ELSE page_title END) AS title1,
 CASE WHEN COUNT(*)>1 THEN MAX(CASE WHEN page_title REGEXP "\\([^_\\W]+\\)$" THEN NULL ELSE page_title END) ELSE NULL END AS title2,
 SUBSTRING_INDEX(page_title, '_(', 1) AS basename,
 REGEXP_REPLACE(page_title, ".*?\\(.*?([^_\\W]+)\\)", "\\1") AS qualifier
FROM page
LEFT JOIN categorylinks ON cl_from=page_id AND cl_type="page" AND cl_to="All_disambiguation_pages"
WHERE page_namespace=0 AND page_title LIKE "%(%)" AND page_is_redirect=0 AND cl_from IS NULL
GROUP BY basename, qualifier
HAVING SUM(page_title = PT)=1 AND N>1

​x
 
SELECT REGEXP_REPLACE(page_title, "(.*?\\().*?([^_\\W]+\\))", "\\1\\2") AS PT, COUNT(*) AS N, MIN(CASE WHEN page_title REGEXP "\\([^_\\W]+\\)$" THEN NULL ELSE page_title END) AS title1, CASE WHEN COUNT(*)>1 THEN MAX(CASE WHEN page_title REGEXP "\\([^_\\W]+\\)$" THEN NULL ELSE page_title END) ELSE NULL END AS title2, SUBSTRING_INDEX(page_title, '_(', 1) AS basename, REGEXP_REPLACE(page_title, ".*?\\(.*?([^_\\W]+)\\)", "\\1") AS qualifierFROM pageLEFT JOIN categorylinks ON cl_from=page_id AND cl_type="page" AND cl_to="All_disambiguation_pages"WHERE page_namespace=0 AND page_title LIKE "%(%)" AND page_is_redirect=0 AND cl_from IS NULLGROUP BY basename, qualifierHAVING SUM(page_title = PT)=1 AND N>1​

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