nlwiktionary Metapage titles starting with lower case

SQL

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

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