SELECT 
  * 
FROM 
  cscart_product_options_exceptions 
WHERE 
  product_id = 716 
ORDER BY 
  exception_id

Query time 0.00026

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
3288 716 a:2:{i:1167;s:5:"22138";i:1168;s:5:"22143";}
3289 716 a:2:{i:1167;s:5:"22140";i:1168;s:5:"22143";}