All-caps wanted Commons categories

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

This query finds categories on Commons whose names are ALL CAPITAL LETTERS and which don't have category pages associated with them. These categories are frequently added by inexperienced users to out-of-scope images such as selfies and advertisements.

SQL

WITH sq AS (
  SELECT DISTINCT cl_to AS catname FROM categorylinks WHERE LENGTH(cl_to) >= 3
)

SELECT catname
FROM sq
LEFT OUTER JOIN page ON (catname = page.page_title AND page.page_namespace = 14)
WHERE catname RLIKE '^[A-Z]*$'
  AND page.page_id IS NULL
LIMIT 100

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SQL

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