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Join при выполнении условий во 2й таблице



Добрый день.
Помогите пожалуйста написать запрос. Имеем 2 таблицы article и images. Отношение oneToMany.
У images есть поле is_approved (true/false). Необходимо выбрать статью, только если все связанные с ней изображения не подтверждены.
Написал такой вариант, но думаю можно лучше. БД - postgres.

SELECT DISTINCT "acticle"."id" AS "id"
FROM "articles"
        LEFT JOIN (
            select "article_id", "is_approved"
            FROM article_to_image ati
            where "is_approved" = false
            and not exists(select * from article_to_image where "is_approved" = true AND "article_id" = ati.article_id)
	) as "images"
    on "images"."article_id" = article.id


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