CREATE VIEW comment_view AS with all_comment AS ( SELECT c.*, ( SELECT community_id FROM post p WHERE p.id = c.post_id), ( SELECT u.banned FROM user_ u WHERE c.creator_id = u.id) AS banned, ( SELECT cb.id::bool FROM community_user_ban cb, post p WHERE c.creator_id = cb.user_id AND p.id = c.post_id AND p.community_id = cb.community_id) AS banned_from_community, ( SELECT name FROM user_ WHERE c.creator_id = user_.id) AS creator_name, coalesce(sum(cl.score), 0) AS score, count( CASE WHEN cl.score = 1 THEN 1 ELSE NULL END) AS upvotes, count( CASE WHEN cl.score = - 1 THEN 1 ELSE NULL END) AS downvotes FROM comment c LEFT JOIN comment_like cl ON c.id = cl.comment_id GROUP BY c.id ) SELECT ac.*, u.id AS user_id, coalesce(cl.score, 0) AS my_vote, ( SELECT cs.id::bool FROM comment_saved cs WHERE u.id = cs.user_id AND cs.comment_id = ac.id) AS saved FROM user_ u CROSS JOIN all_comment ac LEFT JOIN comment_like cl ON u.id = cl.user_id AND ac.id = cl.comment_id UNION ALL SELECT ac.*, NULL AS user_id, NULL AS my_vote, NULL AS saved FROM all_comment ac; CREATE VIEW reply_view AS with closereply AS ( SELECT c2.id, c2.creator_id AS sender_id, c.creator_id AS recipient_id FROM comment c INNER JOIN comment c2 ON c.id = c2.parent_id WHERE c2.creator_id != c.creator_id -- Do union where post is null UNION SELECT c.id, c.creator_id AS sender_id, p.creator_id AS recipient_id FROM comment c, post p WHERE c.post_id = p.id AND c.parent_id IS NULL AND c.creator_id != p.creator_id ) SELECT cv.*, closereply.recipient_id FROM comment_view cv, closereply WHERE closereply.id = cv.id;