SELECT 
  * 
FROM 
  cscart_product_options_exceptions 
WHERE 
  product_id = 10073 
ORDER BY 
  exception_id

Query time 0.00030

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 6 Using where; Using filesort

Result

exception_id product_id combination
864 10073 a:1:{i:635;s:5:"15259";}
866 10073 a:1:{i:635;s:5:"15261";}
1220 10073 a:1:{i:635;s:5:"15269";}
1705 10073 a:1:{i:635;s:5:"15260";}
4255 10073 a:1:{i:635;s:5:"15268";}
4256 10073 a:1:{i:635;s:5:"15267";}