nlwiki Atypical displaytitle usage

SQL

USE nlwiki_p;
/*SELECT 
	page_namespace, 
    page_title, 
    pp_value AS displaytitle
FROM page, page_props
WHERE 
	page_namespace=0 AND
	page_id=pp_page AND 
    pp_propname='displaytitle' AND */
    /*pp_value=CONVERT(REPLACE(page_title,'_',' ') USING utf8mb4) OR */
    /*(
    	NOT (pp_value REGEXP '\\<i\\>' AND pp_value REGEXP '\\</i\\>' AND LENGTH(pp_value)=LENGTH(page_title)+7) AND
    	pp_value!=CONCAT(
      		LOWER(LEFT(CONVERT(page_title USING utf8mb4), 1)),
      		RIGHT(
              	CONVERT(REPLACE(REPLACE(page_title,'\'','&#39;'),'_',' ') USING utf8mb4),
        		CHAR_LENGTH(CONVERT(page_title USING utf8mb4))-1
      		)
    	)
	)
ORDER BY page_latest DESC*/
SELECT CONCAT(LOWER(LEFT('D\'Olde_Skoele', 1)), REPLACE(RIGHT(
              	REPLACE('D\'Olde_Skoele','\'','_',' '),
        		CHAR_LENGTH('D\'Olde_Skoele')-1
      		),'&#39;'));
SQL

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