Tl:Izolēts uzlabošana

SQL

USE lvwiki_p;
SELECT disambigs.page_title, COUNT(DISTINCT links.pl_from) AS direct_links, COUNT(DISTINCT redirects.page_id) AS redirects,
	COUNT(DISTINCT links.pl_from) + COUNT(DISTINCT links_to_redirects.pl_from) AS all_backlinks
	FROM (SELECT * FROM page WHERE page_is_redirect=0 and page_namespace=0) AS disambigs
	#JOIN page AS disambigs
	#	ON disambigs.page_id = pp_page
	JOIN (SELECT * FROM pagelinks WHERE pl_from_namespace = 0) AS links
		ON links.pl_title = disambigs.page_title AND links.pl_namespace = disambigs.page_namespace
	LEFT JOIN page AS redirects
		ON redirects.page_is_redirect = 1 AND redirects.page_id = links.pl_from AND redirects.page_namespace = disambigs.page_namespace
	LEFT JOIN (SELECT * FROM pagelinks WHERE pl_from_namespace = 0) AS links_to_redirects
		ON links_to_redirects.pl_title = redirects.page_title AND links_to_redirects.pl_namespace = redirects.page_namespace
GROUP BY disambigs.page_title
ORDER BY all_backlinks DESC, direct_links DESC, redirects, disambigs.page_title
#LIMIT 1000;
SQL

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