Suspicious wikilinks to surname pages

SQL

SET STATEMENT max_statement_time = 60 FOR
SELECT Pt.page_title, pl_from_namespace, Pf.page_title
FROM templatelinks /* from surname article to {{Surname}} */
JOIN page Pt ON Pt.page_namespace = 0 AND Pt.page_id = tl_from /* Surname article wikilinked to */
JOIN pagelinks PL ON pl_namespace = 0 AND pl_title = Pt.page_title /* Wikilink from article to surname */
JOIN page Pf ON Pf.page_id = PL.pl_from /* Page wikilinked from */
WHERE tl_namespace = 10 AND tl_title = "Surname"
AND pl_from_namespace IN (0,6,10,14,100,828) /* Main, File, Template, Category, Portal, Module */
AND tl_from = 62283316
AND Pt.page_title LIKE "Antonietti" AND pl_title LIKE "Antonietti"
AND NOT EXISTS (SELECT 1 FROM categorylinks WHERE cl_from = PL.pl_from AND cl_to = "Surnames") /* Page linked from is not another surname... */
AND NOT EXISTS (SELECT 1 FROM templatelinks WHERE tl_from = PL.pl_from AND tl_namespace = 10 AND tl_title = "Surname")
AND NOT EXISTS (SELECT 1 FROM templatelinks WHERE tl_from = PL.pl_from AND tl_namespace = 10 AND tl_title = "All_disambiguation_pages") /* nor dab */
/*AND NOT EXISTS (SELECT 1 FROM templatelinks
                JOIN page ON page_namespace = 10 AND page_title = tl_title
                JOIN pagelinks ON pl_from = page_id AND pl_namespace = 0 AND pl_title = Pt.page_title
                WHERE tl_from = PL.pl_from AND tl_namespace = 10)*/
ORDER BY Pt.page_title, pl_from_namespace, Pf.page_title
SQL

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