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 (
    34, 89, 114, 77, 147, 36, 87, 128, 96, 20, 
    52, 66, 84, 109, 118, 19, 131, 146, 13, 
    61, 95, 15, 9, 85, 22421, 83, 111, 59, 
    22424, 144, 123, 60
  ) 
GROUP BY 
  p.product_id