SELECT 
  * 
FROM 
  cscart_product_options_exceptions 
WHERE 
  product_id = 10699 
ORDER BY 
  exception_id

Query time 0.00021

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
3622 10699 a:1:{i:1288;s:5:"23634";}
3624 10699 a:1:{i:1288;s:5:"23637";}