Query test - Quarry

SQL

USE itwiki_p;
SELECT DISTINCT itpage.page_title
FROM page as itpage
JOIN enwiki_p.page as enpage ON (
enpage.page_namespace = 0
AND enpage.page_is_redirect = 0
AND enpage.page_id IN (
SELECT DISTINCT encatlinks.cl_from
FROM enwiki_p.categorylinks as encatlinks
WHERE encatlinks.cl_to LIKE 'Olympic_gold_medalists_for%'
) 
AND itpage.page_id = enpage.page_id
)
WHERE itpage.page_namespace = 0
AND itpage.page_is_redirect = 0
AND itpage.page_id NOT IN (
SELECT DISTINCT itcatlinks.cl_from
FROM categorylinks as itcatlinks
WHERE itcatlinks.cl_to LIKE 'Vincitori_di_medaglia_d%oro_olimpica_per%'
)
LIMIT 10;
SQL

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