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SELECT 
  * 
FROM 
  cscart_product_options_exceptions 
WHERE 
  product_id = 438 
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	9	Using where; Using filesort

Result

exception_id	product_id	combination
1121	438	a:1:{i:336;s:5:"11881";}
1122	438	a:1:{i:336;s:5:"11880";}
1123	438	a:1:{i:336;s:5:"11879";}
1124	438	a:1:{i:336;s:5:"11878";}
1125	438	a:1:{i:336;s:5:"11877";}
1779	438	a:1:{i:336;s:4:"7669";}
1780	438	a:1:{i:336;s:4:"7672";}
1781	438	a:1:{i:336;s:4:"7674";}
1782	438	a:1:{i:336;s:4:"7675";}