SELECT COALESCE(wo.wo_number || '-' || wo.wo_subnumber, '-') AS wo,
       item_descrip1 AS descrip,
       comment_user AS user,
       comment_text AS comment,
       comment_date AS date
FROM wo
JOIN comment ON wo_id = comment_source_id  AND comment_source = 'W' AND comment_cmnttype_id = 23
JOIN itemsite ON wo_itemsite_id = itemsite_id
JOIN item on item_id = itemsite_item_id
WHERE wo_status = 'I'
  AND NOT EXISTS (
      SELECT 1
      FROM comment c2
      WHERE c2.comment_source_id = wo.wo_id 
        AND c2.comment_source = 'W' 
        AND c2.comment_cmnttype_id = 23
        AND c2.comment_text LIKE '%Done%'
  )
ORDER BY comment_date