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SELECT 
  * 
FROM 
  cscart_product_options_exceptions 
WHERE 
  product_id = 9936 
ORDER BY 
  exception_id

Query time 0.00028

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	8	Using where; Using filesort

Result

exception_id	product_id	combination
259	9936	a:2:{i:1352;i:-1;i:599;s:5:"14922";}
260	9936	a:2:{i:1352;i:-1;i:599;s:5:"14923";}
262	9936	a:2:{i:1352;i:-1;i:599;s:5:"14925";}
264	9936	a:2:{i:1352;i:-1;i:599;s:5:"14930";}
266	9936	a:2:{i:1352;i:-1;i:599;s:5:"14939";}
267	9936	a:2:{i:1352;i:-1;i:599;s:5:"14937";}
268	9936	a:2:{i:1352;i:-1;i:599;s:5:"14938";}
269	9936	a:2:{i:1352;i:-1;i:599;s:5:"14929";}
806	9936	a:2:{i:1352;i:-1;i:599;s:5:"14927";}