SQL
AخA
SELECT page_title, ips_item_id
FROM ltwiki_p.categorylinks
INNER JOIN ltwiki_p.page ON cl_from = page_id
LEFT JOIN wikidatawiki_p.wb_items_per_site ON ips_site_page = REPLACE(page_title, '_', ' ') AND ips_site_id = 'ltwiki'
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