Query test - Quarry

SQL

USE itwiki_p;
SELECT DISTINCT page_title
FROM page
WHERE page_namespace = 0
AND page_is_redirect = 0
AND page_id IN (
SELECT DISTINCT pl_from
FROM pagelinks
WHERE pl_from_namespace = 0
AND pl_title REGEXP 'Promozione_(Abruzzo|Basilicata|Calabria|Campania)_(1991|1992|1993|1994|1995|1996|1997|1998|1999|2\d{3})\-\d{4}'
)
/*
AND page_title IN (
	SELECT pl_title
	FROM pagelinks
	WHERE pl_from_namespace = 0
	AND pl_namespace = 0
	AND pl_title = page_title
  AND pl_from IN
  (SELECT page_id
   FROM page
   WHERE page_title LIKE 'Promozione\s?(Abruzzo|Basilicata|Calabria|Campania|Emilia-Romagna|Friuli-Venezia Giulia|Lazio|Liguria|Lombardia|Marche|Molise|Piemonte-Valle_d\'Aosta|Puglia|Sardegna|Sicilia|Toscana|Trentino-Alto Adige|Umbria|Veneto|\s?)\s?(1991|1992|1993|1994|1995|1996|1997|1998|1999|2\d{3})-\d{4}'
  )
)
*/
LIMIT 1;
SQL

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