nlwiktionary Metapage titles starting with lower case

SQL

USE nlwiktionary_p;
SELECT 
	pl.page_namespace AS ns, 
    pl.page_title AS lct, 
    pl.rd_title AS lcrd, 
    pu.page_title AS uct, 
    pu.rd_title AS ucrd
FROM
	(SELECT page_namespace, CONVERT(page_title USING UTF8MB4) AS page_title, rd_title
     FROM page LEFT JOIN redirect ON page_id=rd_from
     WHERE page_namespace NOT IN (0, 1, 2, 3, 8, 9) AND CONVERT(page_title USING UTF8MB4) REGEXP '^\\p{Ll}'
    ) pl, 
	(SELECT page_namespace, CONVERT(page_title USING UTF8MB4) AS page_title, rd_title
     FROM page LEFT JOIN redirect ON page_id=rd_from
     WHERE page_namespace NOT IN (0, 1, 2, 3, 8, 9) AND CONVERT(page_title USING UTF8MB4) REGEXP '^\\p{Lu}'
    ) pu
WHERE
    pl.page_namespace=pu.page_namespace AND
    LENGTH(pl.page_title)=LENGTH(pu.page_title) AND
    pl.page_title=pu.page_title
HAVING (lcrd IS NULL AND ucrd IS NULL) OR (lcrd != uct AND lct != ucrd)
ORDER BY ns, lct
SQL

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