SELECT 
  p.product_id, 
  ifnull(
    count(dp.post_id), 
    0
  ) as discussion_amount_posts 
FROM 
  cscart_discussion 
  INNER JOIN cscart_products as p ON (
    cscart_discussion.object_id = p.product_id
  ) 
  INNER JOIN cscart_discussion_posts as dp ON (
    cscart_discussion.thread_id = dp.thread_id 
    AND cscart_discussion.object_type = 'P' 
    AND cscart_discussion.company_id = 1
  ) 
WHERE 
  dp.status = 'A' 
  and p.product_id in (
    22, 18, 27, 121, 119, 141, 23, 4, 142, 120, 
    62, 108, 107, 94, 8, 86, 54, 132, 10, 93, 
    12, 32, 7, 35, 130, 110, 112, 3, 78, 33, 
    34, 77, 2, 36, 147, 16, 114, 87, 89, 128, 
    96, 66, 146, 84, 20, 52, 109, 131, 118, 
    19, 13, 61, 15, 95, 85, 22421, 9, 83, 111, 
    144, 59, 22424, 145, 60
  ) 
GROUP BY 
  p.product_id