Wikidata items with removed sitelink(s)

This query is marked as a draft This query has been published by Matěj Suchánek.

This query lists items with no sitelinks which had some sitelinks before, but they were removed.
It has its testing alternative at https://quarry.wmflabs.org/query/1269

SQL

use wikidatawiki_p;
SELECT page_title, rev_comment, rev_page, page_latest, page_id, rev_parent_id
	FROM revision
		JOIN page ON page_id = rev_page
	WHERE rev_comment LIKE '/* wbsetsitelink-remove:%'
	AND NOT EXISTS
		(SELECT *
		 FROM wb_items_per_site
		 WHERE CONCAT('Q',ips_item_id) = page_title
		)
	AND page_is_redirect = 0
GROUP BY page_title
LIMIT 100;

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SQL

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