SELECT 
  * 
FROM 
  cscart_product_options_exceptions 
WHERE 
  product_id = 10108 
ORDER BY 
  exception_id

Query time 0.00022

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
2650 10108 a:1:{i:178;s:4:"4245";}
2651 10108 a:1:{i:178;s:4:"4246";}