Untitled query #81683

SQL

USE ruwiki_p;

SELECT
  cl_to AS category,
  COUNT(*) AS article_count
FROM
  categorylinks
LEFT JOIN page ON cl_from = page_id
LEFT JOIN templatelinks ON page_id = tl_from
LEFT JOIN page AS talk_page ON page_title = CONCAT('Обсуждение:', cl_to)
WHERE
  cl_to LIKE 'Статьи_проекта_%'
  AND page.page_namespace = 0
  AND NOT EXISTS (
    SELECT
      1
    FROM
      templatelinks AS talk_tl
    WHERE
      talk_tl.tl_namespace = 10
      AND talk_tl.tl_title = 'К удалению'
      AND tl_from = page_id
  )
  AND talk_page.page_id IS NULL
  AND NOT (
    cl_to LIKE '%важности'
    OR cl_to LIKE '%уровня'
    OR cl_to LIKE '%по_уровню'
  )
GROUP BY
  cl_to
HAVING
  COUNT(*) BETWEEN 0 AND 50;
SQL

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