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SELECT id, name, permalink, comment, uppercats, representative_picture_id
  FROM piwigocp_categories INNER JOIN piwigocp_user_cache_categories
  ON id = cat_id and user_id = 2
  WHERE id_uppercat is NULL
  ORDER BY rank
; in /home/denisdit/cp/include/dblayer/functions_mysqli.inc.php on line 847