Bad disambiguation page titles (eswiki)

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

Disambiguation pages with a superfluous " (desambiguación)" suffix (eswiki).

SQL

use eswiki_p;
select disam.base_title as title from
(select distinct page_title, left(page_title, char_length(page_title) - 18) as base_title from page
	where page_namespace = 0 and page_title like '%\_(desambiguación)') as disam
left join
(select page_title, rd_title from page left join redirect on page_id = rd_from) as allpages
on disam.base_title = allpages.page_title
where allpages.page_title is null or allpages.rd_title = disam.page_title;

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