Test 3 - Quarry

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

SQL

USE wikidatawiki_p;

SELECT
  pp_value AS Category,
  COUNT(*) AS NumLanguages
FROM
  page_props
  LEFT JOIN wb_items_per_site
  ON
    pp_page = ips_item_id
    AND ips_site_id = 'enwiki' -- English Wikipedia
WHERE
  ips_site_page IS NOT NULL
  AND ips_site_id != 'ckbwiki' -- Exclude ckbwiki
  AND NOT EXISTS (
    SELECT 1
    FROM page_props AS pp_hidden
    WHERE
      pp_page = pp_hidden.pp_page
      AND pp_propname = 'HIDDENCAT'
  )
GROUP BY
  Category
HAVING
  NumLanguages > 0
ORDER BY
  NumLanguages DESC
LIMIT 100;

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