One other topic

SQL

SELECT p1.page_title, GROUP_CONCAT(pl_title SEPARATOR ', '), COUNT(pl_title) as links
-- COUNT(distinct IF(p2.page_is_redirect = 1, rd_title, p2.page_title)) as links
FROM page p1 LEFT JOIN pagelinks ON pl_from = p1.page_id AND pl_namespace = 0
JOIN page p2 on pl_title = p2.page_title and p2.page_namespace = 0 and p2.page_title not like 'MOS:%'
LEFT JOIN redirect on p2.page_id = rd_from -- and rd_namespace = 0
/*
AND pl_title IN (
  select p2.page_title from page p2
  where p2.page_namespace = 0 and p2.page_title not like 'MOS:%'
  -- and p2.page_title not like '%\_(disambiguation)'
)
*/
WHERE p1.page_id IN (
  select cl_from from categorylinks
  where cl_to in ("All_disambiguation_pages"/*, "All_set_index_articles"*/) and cl_type = 'page'
)
AND p1.page_namespace = 0 AND p1.page_is_redirect = 0
AND p1.page_title not like 'MOS:%'
AND p1.page_id not in (
  select tl_from from templatelinks where tl_target_id in (
    select lt_id from linktarget where lt_title = 'One_other_topic' and lt_namespace = 10
  )
)
AND (p2.page_is_redirect = 0 or rd_namespace = 0)
/*
and p1.page_id in (
  select rev_page from revision
  join actor_revision on actor_id = rev_actor
  where rev_id = p1.page_latest
  and (actor_user is null or actor_user in (
    select user_id from user where user_editcount < 10
  ))
)
*/
GROUP BY p1.page_title
-- HAVING p1.page_title LIKE '%\_(disambiguation)' AND links < 2 OR links < 1
HAVING p1.page_title LIKE '%\_(disambiguation)' AND links < 3
ORDER BY links
SQL

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