SELECT 
  *, 
  amount AS pure_amount 
FROM 
  cscart_reward_points 
WHERE 
  object_id = 603 
  AND object_type = 'C' 
  AND company_id = 0 
  AND amount > 0 
  AND usergroup_id IN(0, 1) 
ORDER BY 
  amount_type ASC, 
  amount ASC 
LIMIT 
  1