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WITH RECURSIVE subcategories(sbc_title, sbc_depth, sbc_id) AS ( SELECT 'Informatyka', 0, 0 FROM DUAL UNION ALL SELECT page_title, sbc_depth+1, page_id FROM subcategories JOIN categorylinks ON cl_to = sbc_title JOIN page ON cl_from = page_id WHERE cl_type = "page" AND sbc_depth <= 3 ) select p.page_title from page p, subcategories s where p.page_id=s.sbc_id LIMIT 10
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