SELECT 
  * 
FROM 
  cscart_product_options_exceptions 
WHERE 
  product_id = 8875 
ORDER BY 
  exception_id

Query time 0.00044

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 3 Using where; Using filesort

Result

exception_id product_id combination
3108 8875 a:2:{i:1116;s:5:"21131";i:762;s:5:"16365";}
3109 8875 a:2:{i:1116;s:5:"21131";i:762;s:5:"16366";}
3110 8875 a:2:{i:1116;s:5:"21131";i:762;s:5:"16464";}