SELECT 
  * 
FROM 
  cscart_product_options_exceptions 
WHERE 
  product_id = 10201 
ORDER BY 
  exception_id

Query time 0.00028

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE cscart_product_options_exceptions ref product product 3 const 2 Using where; Using filesort

Result

exception_id product_id combination
1794 10201 a:1:{i:535;s:5:"15373";}
1795 10201 a:1:{i:535;s:5:"15309";}