nlwiki Red article links w/ rare title suffixes between parenthesis

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

(just suffixes w/ lowercase letters for now)
1. count all suffixes in article links
2. get red article links with a suffix
3. join and select rare suffixes (currently: that occur only once)

takes 15-20 mins

https://nl.wikipedia.org/wiki/Gebruiker:Bdijkstra/quarry/Haakjesanomalieën

SQL

SELECT `suffix`, COUNT(*) AS `count`
FROM (
	SELECT REGEXP_REPLACE(pl_title, '^.*_\\(([^\\(\\)]+)\\)$', '\\1') AS `suffix`
	FROM pagelinks
	WHERE
		#NOT EXISTS (SELECT * FROM page WHERE pl_title=page_title AND page_namespace=0) AND
		pl_from_namespace=0 AND pl_namespace=0 AND pl_title REGEXP '_\\([^\\(\\)]+\\)$'
	LIMIT 1000
) t
GROUP BY `suffix`
ORDER BY `count` ASC
LIMIT 50

By running queries you agree to the Cloud Services Terms of Use and you irrevocably agree to release your SQL under CC0 License.

Submit Query Stop Query

All SQL code is licensed under CC0 License.

SQL

Checking query status...