Составить mysql запрос для выборки значений

Как-то вроде так:

select p1.page_id from page_additional_info p1
where p1.page_type_id=2
and not exists (select * from page_additional_info p2 
where p1.page_info=p2.page_info and p2.page_type_id=3)
group by p1.page_id

Спасибо за подсказки, удалось решить так

SELECT page_id, page_type_id FROM page_additional_info
WHERE page_id NOT IN (SELECT page_id FROM page_additional_info where page_type_id = 2)
AND page_type_id = 3
GROUP BY page_id