Remove materialized views. (#908)

* One pass at materialized views, only about 30% faster, not good.

* Before merging master to test out bans.

* DB Rework working, still need more testing.

* Fixing accidental addadmin bug from asonix async merge.

* Fixing the comment delete trigger

* Some more DB additions.

- Adding a hot_rank desc, published desc index to post_aggregates_fast.
- Removed WITH CTE queries in favor of direct selects (since CTEs cant
  use indexes)

* Removing some unecessary indexes.

* Some more DB optimizings

- Changing the fast_id pkeys to just ids on the fast tables.
- Removing the private_message_fast, since the view contains no aggregates.
- Comment and post voting now no longer pull from the views, they update the counts directly.

* Adding community_agg_view and post_agg_views Credit: eiknat.

* Adding user and comment_view migrations. (comment_view still broken)

* Adding more views. Credit Eiknat.

server/migrations/2020-06-30-135809_remove_mat_views/down.sql

@@ -0,0 +1,535 @@
+-- Dropping all the fast tables
+drop table user_fast;
+drop view post_fast_view;
+drop table post_aggregates_fast;
+drop view community_fast_view;
+drop table community_aggregates_fast;
+drop view reply_fast_view;
+drop view user_mention_fast_view;
+drop view comment_fast_view;
+drop table comment_aggregates_fast;
+
+-- Re-adding all the triggers, functions, and mviews
+
+-- private message
+create materialized view private_message_mview as select * from private_message_view;
+
+create unique index idx_private_message_mview_id on private_message_mview (id);
+
+
+-- Create the triggers
+create or replace function refresh_private_message()
+returns trigger language plpgsql
+as $$
+begin
+  refresh materialized view concurrently private_message_mview;
+  return null;
+end $$;
+
+create trigger refresh_private_message
+after insert or update or delete or truncate
+on private_message
+for each statement
+execute procedure refresh_private_message();
+
+-- user 
+create or replace function refresh_user()
+returns trigger language plpgsql
+as $$
+begin
+  refresh materialized view concurrently user_mview;
+  refresh materialized view concurrently comment_aggregates_mview; -- cause of bans
+  refresh materialized view concurrently post_aggregates_mview;
+  return null;
+end $$;
+
+drop trigger refresh_user on user_;
+create trigger refresh_user
+after insert or update or delete or truncate
+on user_
+for each statement
+execute procedure refresh_user();
+drop view user_view cascade;
+
+create view user_view as 
+select 
+u.id,
+u.actor_id,
+u.name,
+u.avatar,
+u.email,
+u.matrix_user_id,
+u.bio,
+u.local,
+u.admin,
+u.banned,
+u.show_avatars,
+u.send_notifications_to_email,
+u.published,
+(select count(*) from post p where p.creator_id = u.id) as number_of_posts,
+(select coalesce(sum(score), 0) from post p, post_like pl where u.id = p.creator_id and p.id = pl.post_id) as post_score,
+(select count(*) from comment c where c.creator_id = u.id) as number_of_comments,
+(select coalesce(sum(score), 0) from comment c, comment_like cl where u.id = c.creator_id and c.id = cl.comment_id) as comment_score
+from user_ u;
+
+create materialized view user_mview as select * from user_view;
+
+create unique index idx_user_mview_id on user_mview (id);
+
+-- community
+drop trigger refresh_community on community;
+create trigger refresh_community
+after insert or update or delete or truncate
+on community
+for each statement
+execute procedure refresh_community();
+
+create or replace function refresh_community()
+returns trigger language plpgsql
+as $$
+begin
+  refresh materialized view concurrently post_aggregates_mview;
+  refresh materialized view concurrently community_aggregates_mview; 
+  refresh materialized view concurrently user_mview;
+  return null;
+end $$;
+
+drop view community_aggregates_view cascade;
+create view community_aggregates_view as
+-- Now that there's public and private keys, you have to be explicit here
+select c.id,
+c.name,
+c.title,
+c.description,
+c.category_id,
+c.creator_id,
+c.removed,
+c.published,
+c.updated,
+c.deleted,
+c.nsfw,
+c.actor_id,
+c.local,
+c.last_refreshed_at,
+(select actor_id from user_ u where c.creator_id = u.id) as creator_actor_id,
+(select local from user_ u where c.creator_id = u.id) as creator_local,
+(select name from user_ u where c.creator_id = u.id) as creator_name,
+(select avatar from user_ u where c.creator_id = u.id) as creator_avatar,
+(select name from category ct where c.category_id = ct.id) as category_name,
+(select count(*) from community_follower cf where cf.community_id = c.id) as number_of_subscribers,
+(select count(*) from post p where p.community_id = c.id) as number_of_posts,
+(select count(*) from comment co, post p where c.id = p.community_id and p.id = co.post_id) as number_of_comments,
+hot_rank((select count(*) from community_follower cf where cf.community_id = c.id), c.published) as hot_rank
+from community c;
+
+create materialized view community_aggregates_mview as select * from community_aggregates_view;
+
+create unique index idx_community_aggregates_mview_id on community_aggregates_mview (id);
+
+create view community_view as
+with all_community as
+(
+  select
+  ca.*
+  from community_aggregates_view ca
+)
+
+select
+ac.*,
+u.id as user_id,
+(select cf.id::boolean from community_follower cf where u.id = cf.user_id and ac.id = cf.community_id) as subscribed
+from user_ u
+cross join all_community ac
+
+union all
+
+select 
+ac.*,
+null as user_id,
+null as subscribed
+from all_community ac
+;
+
+create view community_mview as
+with all_community as
+(
+  select
+  ca.*
+  from community_aggregates_mview ca
+)
+
+select
+ac.*,
+u.id as user_id,
+(select cf.id::boolean from community_follower cf where u.id = cf.user_id and ac.id = cf.community_id) as subscribed
+from user_ u
+cross join all_community ac
+
+union all
+
+select 
+ac.*,
+null as user_id,
+null as subscribed
+from all_community ac
+;
+-- Post
+drop view post_view;
+drop view post_aggregates_view;
+
+-- regen post view
+create view post_aggregates_view as
+select        
+p.*,
+(select u.banned from user_ u where p.creator_id = u.id) as banned,
+(select cb.id::bool from community_user_ban cb where p.creator_id = cb.user_id and p.community_id = cb.community_id) as banned_from_community,
+(select actor_id from user_ where p.creator_id = user_.id) as creator_actor_id,
+(select local from user_ where p.creator_id = user_.id) as creator_local,
+(select name from user_ where p.creator_id = user_.id) as creator_name,
+(select avatar from user_ where p.creator_id = user_.id) as creator_avatar,
+(select actor_id from community where p.community_id = community.id) as community_actor_id,
+(select local from community where p.community_id = community.id) as community_local,
+(select name from community where p.community_id = community.id) as community_name,
+(select removed from community c where p.community_id = c.id) as community_removed,
+(select deleted from community c where p.community_id = c.id) as community_deleted,
+(select nsfw from community c where p.community_id = c.id) as community_nsfw,
+(select count(*) from comment where comment.post_id = p.id) as number_of_comments,
+coalesce(sum(pl.score), 0) as score,
+count (case when pl.score = 1 then 1 else null end) as upvotes,
+count (case when pl.score = -1 then 1 else null end) as downvotes,
+hot_rank(coalesce(sum(pl.score) , 0), 
+  (
+    case when (p.published < ('now'::timestamp - '1 month'::interval)) then p.published -- Prevents necro-bumps
+    else greatest(c.recent_comment_time, p.published)
+    end
+  )
+) as hot_rank,
+(
+  case when (p.published < ('now'::timestamp - '1 month'::interval)) then p.published -- Prevents necro-bumps
+  else greatest(c.recent_comment_time, p.published)
+  end
+) as newest_activity_time
+from post p
+left join post_like pl on p.id = pl.post_id
+left join (
+  select post_id, 
+  max(published) as recent_comment_time
+  from comment
+  group by 1
+) c on p.id = c.post_id
+group by p.id, c.recent_comment_time;
+
+create materialized view post_aggregates_mview as select * from post_aggregates_view;
+
+create unique index idx_post_aggregates_mview_id on post_aggregates_mview (id);
+
+create view post_view as 
+with all_post as (
+  select
+  pa.*
+  from post_aggregates_view pa
+)
+select
+ap.*,
+u.id as user_id,
+coalesce(pl.score, 0) as my_vote,
+(select cf.id::bool from community_follower cf where u.id = cf.user_id and cf.community_id = ap.community_id) as subscribed,
+(select pr.id::bool from post_read pr where u.id = pr.user_id and pr.post_id = ap.id) as read,
+(select ps.id::bool from post_saved ps where u.id = ps.user_id and ps.post_id = ap.id) as saved
+from user_ u
+cross join all_post ap
+left join post_like pl on u.id = pl.user_id and ap.id = pl.post_id
+
+union all
+
+select 
+ap.*,
+null as user_id,
+null as my_vote,
+null as subscribed,
+null as read,
+null as saved
+from all_post ap
+;
+
+create view post_mview as 
+with all_post as (
+  select
+  pa.*
+  from post_aggregates_mview pa
+)
+select
+ap.*,
+u.id as user_id,
+coalesce(pl.score, 0) as my_vote,
+(select cf.id::bool from community_follower cf where u.id = cf.user_id and cf.community_id = ap.community_id) as subscribed,
+(select pr.id::bool from post_read pr where u.id = pr.user_id and pr.post_id = ap.id) as read,
+(select ps.id::bool from post_saved ps where u.id = ps.user_id and ps.post_id = ap.id) as saved
+from user_ u
+cross join all_post ap
+left join post_like pl on u.id = pl.user_id and ap.id = pl.post_id
+
+union all
+
+select 
+ap.*,
+null as user_id,
+null as my_vote,
+null as subscribed,
+null as read,
+null as saved
+from all_post ap
+;
+
+drop trigger refresh_post on post;
+create trigger refresh_post
+after insert or update or delete or truncate
+on post
+for each statement
+execute procedure refresh_post();
+
+create or replace function refresh_post()
+returns trigger language plpgsql
+as $$
+begin
+  refresh materialized view concurrently post_aggregates_mview;
+  refresh materialized view concurrently user_mview;
+  return null;
+end $$;
+
+
+-- User mention, comment, reply
+drop view user_mention_view;
+drop view comment_view;
+drop view comment_aggregates_view;
+
+-- reply and comment view
+create view comment_aggregates_view as
+select        
+c.*,
+(select community_id from post p where p.id = c.post_id),
+(select co.actor_id from post p, community co where p.id = c.post_id and p.community_id = co.id) as community_actor_id,
+(select co.local from post p, community co where p.id = c.post_id and p.community_id = co.id) as community_local,
+(select co.name from post p, community co where p.id = c.post_id and p.community_id = co.id) as community_name,
+(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 actor_id from user_ where c.creator_id = user_.id) as creator_actor_id,
+(select local from user_ where c.creator_id = user_.id) as creator_local,
+(select name from user_ where c.creator_id = user_.id) as creator_name,
+(select avatar from user_ where c.creator_id = user_.id) as creator_avatar,
+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,
+hot_rank(coalesce(sum(cl.score) , 0), c.published) as hot_rank
+from comment c
+left join comment_like cl on c.id = cl.comment_id
+group by c.id;
+
+create materialized view comment_aggregates_mview as select * from comment_aggregates_view;
+
+create unique index idx_comment_aggregates_mview_id on comment_aggregates_mview (id);
+
+create view comment_view as
+with all_comment as
+(
+  select
+  ca.*
+  from comment_aggregates_view ca
+)
+
+select
+ac.*,
+u.id as user_id,
+coalesce(cl.score, 0) as my_vote,
+(select cf.id::boolean from community_follower cf where u.id = cf.user_id and ac.community_id = cf.community_id) as subscribed,
+(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 subscribed,
+    null as saved
+from all_comment ac
+;
+
+create view comment_mview as
+with all_comment as
+(
+  select
+  ca.*
+  from comment_aggregates_mview ca
+)
+
+select
+ac.*,
+u.id as user_id,
+coalesce(cl.score, 0) as my_vote,
+(select cf.id::boolean from community_follower cf where u.id = cf.user_id and ac.community_id = cf.community_id) as subscribed,
+(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 subscribed,
+    null as saved
+from all_comment ac
+;
+
+-- Do the reply_view referencing the comment_mview
+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_mview cv, closereply
+where closereply.id = cv.id
+;
+
+-- user mention
+create view user_mention_view as
+select 
+    c.id,
+    um.id as user_mention_id,
+    c.creator_id,
+    c.creator_actor_id,
+    c.creator_local,
+    c.post_id,
+    c.parent_id,
+    c.content,
+    c.removed,
+    um.read,
+    c.published,
+    c.updated,
+    c.deleted,
+    c.community_id,
+    c.community_actor_id,
+    c.community_local,
+    c.community_name,
+    c.banned,
+    c.banned_from_community,
+    c.creator_name,
+    c.creator_avatar,
+    c.score,
+    c.upvotes,
+    c.downvotes,
+    c.hot_rank,
+    c.user_id,
+    c.my_vote,
+    c.saved,
+    um.recipient_id,
+    (select actor_id from user_ u where u.id = um.recipient_id) as recipient_actor_id,
+    (select local from user_ u where u.id = um.recipient_id) as recipient_local
+from user_mention um, comment_view c
+where um.comment_id = c.id;
+
+
+create view user_mention_mview as 
+with all_comment as
+(
+  select
+  ca.*
+  from comment_aggregates_mview ca
+)
+
+select
+    ac.id,
+    um.id as user_mention_id,
+    ac.creator_id,
+    ac.creator_actor_id,
+    ac.creator_local,
+    ac.post_id,
+    ac.parent_id,
+    ac.content,
+    ac.removed,
+    um.read,
+    ac.published,
+    ac.updated,
+    ac.deleted,
+    ac.community_id,
+    ac.community_actor_id,
+    ac.community_local,
+    ac.community_name,
+    ac.banned,
+    ac.banned_from_community,
+    ac.creator_name,
+    ac.creator_avatar,
+    ac.score,
+    ac.upvotes,
+    ac.downvotes,
+    ac.hot_rank,
+    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,
+    um.recipient_id,
+    (select actor_id from user_ u where u.id = um.recipient_id) as recipient_actor_id,
+    (select local from user_ u where u.id = um.recipient_id) as recipient_local
+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
+left join user_mention um on um.comment_id = ac.id
+
+union all
+
+select 
+    ac.id,
+    um.id as user_mention_id,
+    ac.creator_id,
+    ac.creator_actor_id,
+    ac.creator_local,
+    ac.post_id,
+    ac.parent_id,
+    ac.content,
+    ac.removed,
+    um.read,
+    ac.published,
+    ac.updated,
+    ac.deleted,
+    ac.community_id,
+    ac.community_actor_id,
+    ac.community_local,
+    ac.community_name,
+    ac.banned,
+    ac.banned_from_community,
+    ac.creator_name,
+    ac.creator_avatar,
+    ac.score,
+    ac.upvotes,
+    ac.downvotes,
+    ac.hot_rank,
+    null as user_id, 
+    null as my_vote,
+    null as saved,
+    um.recipient_id,
+    (select actor_id from user_ u where u.id = um.recipient_id) as recipient_actor_id,
+    (select local from user_ u where u.id = um.recipient_id) as recipient_local
+from all_comment ac
+left join user_mention um on um.comment_id = ac.id
+;
+

server/migrations/2020-06-30-135809_remove_mat_views/up.sql

@@ -0,0 +1,939 @@
+-- Drop the mviews
+drop view post_mview;
+drop materialized view user_mview;
+drop view community_mview;
+drop materialized view private_message_mview;
+drop view user_mention_mview;
+drop view reply_view;
+drop view comment_mview;
+drop materialized view post_aggregates_mview;
+drop materialized view community_aggregates_mview;
+drop materialized view comment_aggregates_mview;
+drop trigger refresh_private_message on private_message;
+
+-- User
+drop view user_view;
+create view user_view as
+select 
+	u.id,
+  u.actor_id,
+	u.name,
+	u.avatar,
+	u.email,
+	u.matrix_user_id,
+  u.bio,
+  u.local,
+	u.admin,
+	u.banned,
+	u.show_avatars,
+	u.send_notifications_to_email,
+	u.published,
+	coalesce(pd.posts, 0) as number_of_posts,
+	coalesce(pd.score, 0) as post_score,
+	coalesce(cd.comments, 0) as number_of_comments,
+	coalesce(cd.score, 0) as comment_score
+from user_ u
+left join (
+    select
+        p.creator_id as creator_id,
+        count(distinct p.id) as posts,
+        sum(pl.score) as score
+    from post p
+    join post_like pl on p.id = pl.post_id
+    group by p.creator_id
+) pd on u.id = pd.creator_id
+left join (
+    select
+        c.creator_id,
+        count(distinct c.id) as comments,
+        sum(cl.score) as score
+    from comment c
+    join comment_like cl on c.id = cl.comment_id
+    group by c.creator_id
+) cd on u.id = cd.creator_id;
+
+
+create table user_fast as select * from user_view;
+alter table user_fast add primary key (id);
+
+drop trigger refresh_user on user_;
+
+create trigger refresh_user
+after insert or update or delete
+on user_
+for each row
+execute procedure refresh_user();
+
+-- Sample insert 
+-- insert into user_(name, password_encrypted) values ('test_name', 'bleh');
+-- Sample delete
+-- delete from user_ where name like 'test_name';
+-- Sample update
+-- update user_ set avatar = 'hai'  where name like 'test_name';
+create or replace function refresh_user()
+returns trigger language plpgsql
+as $$
+begin
+  IF (TG_OP = 'DELETE') THEN
+    delete from user_fast where id = OLD.id;
+  ELSIF (TG_OP = 'UPDATE') THEN
+    delete from user_fast where id = OLD.id;
+    insert into user_fast select * from user_view where id = NEW.id;
+    
+    -- Refresh post_fast, cause of user info changes
+    delete from post_aggregates_fast where creator_id = NEW.id;
+    insert into post_aggregates_fast select * from post_aggregates_view where creator_id = NEW.id;
+
+    delete from comment_aggregates_fast where creator_id = NEW.id;
+    insert into comment_aggregates_fast select * from comment_aggregates_view where creator_id = NEW.id;
+
+  ELSIF (TG_OP = 'INSERT') THEN
+    insert into user_fast select * from user_view where id = NEW.id;
+  END IF;
+
+  return null;
+end $$;
+
+-- Post
+-- Redoing the views : Credit eiknat
+drop view post_view;
+drop view post_aggregates_view;
+
+create view post_aggregates_view as
+select
+	p.*,
+	-- creator details
+	u.actor_id as creator_actor_id,
+	u."local" as creator_local,
+	u."name" as creator_name,
+	u.avatar as creator_avatar,
+  u.banned as banned,
+  cb.id::bool as banned_from_community,
+	-- community details
+	c.actor_id as community_actor_id,
+	c."local" as community_local,
+	c."name" as community_name,
+	c.removed as community_removed,
+	c.deleted as community_deleted,
+	c.nsfw as community_nsfw,
+	-- post score data/comment count
+	coalesce(ct.comments, 0) as number_of_comments,
+	coalesce(pl.score, 0) as score,
+	coalesce(pl.upvotes, 0) as upvotes,
+	coalesce(pl.downvotes, 0) as downvotes,
+	hot_rank(
+		coalesce(pl.score , 0), (
+			case
+				when (p.published < ('now'::timestamp - '1 month'::interval))
+				then p.published
+				else greatest(ct.recent_comment_time, p.published)
+			end
+		)
+	) as hot_rank,
+	(
+		case
+			when (p.published < ('now'::timestamp - '1 month'::interval))
+			then p.published
+			else greatest(ct.recent_comment_time, p.published)
+		end
+	) as newest_activity_time
+from post p
+left join user_ u on p.creator_id = u.id
+left join community_user_ban cb on p.creator_id = cb.user_id and p.community_id = cb.community_id
+left join community c on p.community_id = c.id
+left join (
+	select
+		post_id,
+		count(*) as comments,
+		max(published) as recent_comment_time
+	from comment
+	group by post_id
+) ct on ct.post_id = p.id
+left join (
+	select
+		post_id,
+		sum(score) as score,
+		sum(score) filter (where score = 1) as upvotes,
+		-sum(score) filter (where score = -1) as downvotes
+	from post_like
+	group by post_id
+) pl on pl.post_id = p.id
+order by p.id;
+
+create view post_view as
+select
+	pav.*,
+	us.id as user_id,
+	us.user_vote as my_vote,
+	us.is_subbed::bool as subscribed,
+	us.is_read::bool as read,
+	us.is_saved::bool as saved
+from post_aggregates_view pav
+cross join lateral (
+	select
+		u.id,
+		coalesce(cf.community_id, 0) as is_subbed,
+		coalesce(pr.post_id, 0) as is_read,
+		coalesce(ps.post_id, 0) as is_saved,
+		coalesce(pl.score, 0) as user_vote
+	from user_ u
+	left join community_user_ban cb on u.id = cb.user_id and cb.community_id = pav.community_id
+	left join community_follower cf on u.id = cf.user_id and cf.community_id = pav.community_id
+	left join post_read pr on u.id = pr.user_id and pr.post_id = pav.id
+	left join post_saved ps on u.id = ps.user_id and ps.post_id = pav.id
+	left join post_like pl on u.id = pl.user_id and pav.id = pl.post_id
+) as us
+
+union all
+
+select 
+pav.*,
+null as user_id,
+null as my_vote,
+null as subscribed,
+null as read,
+null as saved
+from post_aggregates_view pav;
+
+-- The post fast table
+create table post_aggregates_fast as select * from post_aggregates_view;
+alter table post_aggregates_fast add primary key (id);
+
+-- For the hot rank resorting
+create index idx_post_aggregates_fast_hot_rank_published on post_aggregates_fast (hot_rank desc, published desc);
+
+create view post_fast_view as 
+select
+	pav.*,
+	us.id as user_id,
+	us.user_vote as my_vote,
+	us.is_subbed::bool as subscribed,
+	us.is_read::bool as read,
+	us.is_saved::bool as saved
+from post_aggregates_fast pav
+cross join lateral (
+	select
+		u.id,
+		coalesce(cf.community_id, 0) as is_subbed,
+		coalesce(pr.post_id, 0) as is_read,
+		coalesce(ps.post_id, 0) as is_saved,
+		coalesce(pl.score, 0) as user_vote
+	from user_ u
+	left join community_user_ban cb on u.id = cb.user_id and cb.community_id = pav.community_id
+	left join community_follower cf on u.id = cf.user_id and cf.community_id = pav.community_id
+	left join post_read pr on u.id = pr.user_id and pr.post_id = pav.id
+	left join post_saved ps on u.id = ps.user_id and ps.post_id = pav.id
+	left join post_like pl on u.id = pl.user_id and pav.id = pl.post_id
+) as us
+
+union all
+
+select 
+pav.*,
+null as user_id,
+null as my_vote,
+null as subscribed,
+null as read,
+null as saved
+from post_aggregates_fast pav;
+
+drop trigger refresh_post on post;
+
+create trigger refresh_post
+after insert or update or delete
+on post
+for each row
+execute procedure refresh_post();
+
+-- Sample select
+-- select id, name from post_fast_view where name like 'test_post' and user_id is null;
+-- Sample insert 
+-- insert into post(name, creator_id, community_id) values ('test_post', 2, 2);
+-- Sample delete
+-- delete from post where name like 'test_post';
+-- Sample update
+-- update post set community_id = 4  where name like 'test_post';
+create or replace function refresh_post()
+returns trigger language plpgsql
+as $$
+begin
+  IF (TG_OP = 'DELETE') THEN
+    delete from post_aggregates_fast where id = OLD.id;
+
+    -- Update community number of posts
+    update community_aggregates_fast set number_of_posts = number_of_posts - 1 where id = OLD.community_id;
+  ELSIF (TG_OP = 'UPDATE') THEN
+    delete from post_aggregates_fast where id = OLD.id;
+    insert into post_aggregates_fast select * from post_aggregates_view where id = NEW.id;
+  ELSIF (TG_OP = 'INSERT') THEN
+    insert into post_aggregates_fast select * from post_aggregates_view where id = NEW.id;
+
+    -- Update that users number of posts, post score
+    delete from user_fast where id = NEW.creator_id;
+    insert into user_fast select * from user_view where id = NEW.creator_id;
+  
+    -- Update community number of posts
+    update community_aggregates_fast set number_of_posts = number_of_posts + 1 where id = NEW.community_id;
+
+    -- Update the hot rank on the post table
+    -- TODO this might not correctly update it, using a 1 week interval
+    update post_aggregates_fast as paf
+    set hot_rank = pav.hot_rank 
+    from post_aggregates_view as pav
+    where paf.id = pav.id  and (pav.published > ('now'::timestamp - '1 week'::interval));
+  END IF;
+
+  return null;
+end $$;
+
+-- Community
+-- Redoing the views : Credit eiknat
+drop view community_moderator_view;
+drop view community_follower_view;
+drop view community_user_ban_view;
+drop view community_view;
+drop view community_aggregates_view;
+
+create view community_aggregates_view as
+select 
+    c.id,
+    c.name,
+    c.title,
+    c.description,
+    c.category_id,
+    c.creator_id,
+    c.removed,
+    c.published,
+    c.updated,
+    c.deleted,
+    c.nsfw,
+    c.actor_id,
+    c.local,
+    c.last_refreshed_at,
+    u.actor_id as creator_actor_id,
+    u.local as creator_local,
+    u.name as creator_name,
+    u.avatar as creator_avatar,
+    cat.name as category_name,
+    coalesce(cf.subs, 0) as number_of_subscribers,
+    coalesce(cd.posts, 0) as number_of_posts,
+    coalesce(cd.comments, 0) as number_of_comments,
+    hot_rank(cf.subs, c.published) as hot_rank
+from community c
+left join user_ u on c.creator_id = u.id
+left join category cat on c.category_id = cat.id
+left join (
+    select
+        p.community_id,
+        count(distinct p.id) as posts,
+        count(distinct ct.id) as comments
+    from post p
+    join comment ct on p.id = ct.post_id
+    group by p.community_id
+) cd on cd.community_id = c.id
+left join (
+    select
+        community_id,
+        count(*) as subs 
+    from community_follower
+    group by community_id 
+) cf on cf.community_id = c.id;
+
+create view community_view as
+select
+    cv.*,
+    us.user as user_id,
+    us.is_subbed::bool as subscribed
+from community_aggregates_view cv
+cross join lateral (
+	select
+		u.id as user,
+		coalesce(cf.community_id, 0) as is_subbed
+	from user_ u
+	left join community_follower cf on u.id = cf.user_id and cf.community_id = cv.id
+) as us
+
+union all
+
+select 
+    cv.*,
+    null as user_id,
+    null as subscribed
+from community_aggregates_view cv;
+
+create view community_moderator_view as
+select
+    cm.*,
+    u.actor_id as user_actor_id,
+    u.local as user_local,
+    u.name as user_name,
+    u.avatar as avatar,
+    c.actor_id as community_actor_id,
+    c.local as community_local,
+    c.name as community_name
+from community_moderator cm
+left join user_ u on cm.user_id = u.id
+left join community c on cm.community_id = c.id;
+
+create view community_follower_view as
+select
+    cf.*,
+    u.actor_id as user_actor_id,
+    u.local as user_local,
+    u.name as user_name,
+    u.avatar as avatar,
+    c.actor_id as community_actor_id,
+    c.local as community_local,
+    c.name as community_name
+from community_follower cf
+left join user_ u on cf.user_id = u.id
+left join community c on cf.community_id = c.id;
+
+create view community_user_ban_view as
+select
+    cb.*,
+    u.actor_id as user_actor_id,
+    u.local as user_local,
+    u.name as user_name,
+    u.avatar as avatar,
+    c.actor_id as community_actor_id,
+    c.local as community_local,
+    c.name as community_name
+from community_user_ban cb
+left join user_ u on cb.user_id = u.id
+left join community c on cb.community_id = c.id;
+
+-- The community fast table
+
+create table community_aggregates_fast as select * from community_aggregates_view;
+alter table community_aggregates_fast add primary key (id);
+
+create view community_fast_view as
+select
+ac.*,
+u.id as user_id,
+(select cf.id::boolean from community_follower cf where u.id = cf.user_id and ac.id = cf.community_id) as subscribed
+from user_ u
+cross join (
+  select
+  ca.*
+  from community_aggregates_fast ca
+) ac
+
+union all
+
+select 
+caf.*,
+null as user_id,
+null as subscribed
+from community_aggregates_fast caf;
+
+drop trigger refresh_community on community;
+
+create trigger refresh_community
+after insert or update or delete
+on community
+for each row
+execute procedure refresh_community();
+
+-- Sample select
+-- select * from community_fast_view where name like 'test_community_name' and user_id is null;
+-- Sample insert 
+-- insert into community(name, title, category_id, creator_id) values ('test_community_name', 'test_community_title', 1, 2);
+-- Sample delete
+-- delete from community where name like 'test_community_name';
+-- Sample update
+-- update community set title = 'test_community_title_2'  where name like 'test_community_name';
+create or replace function refresh_community()
+returns trigger language plpgsql
+as $$
+begin
+  IF (TG_OP = 'DELETE') THEN
+    delete from community_aggregates_fast where id = OLD.id;
+  ELSIF (TG_OP = 'UPDATE') THEN
+    delete from community_aggregates_fast where id = OLD.id;
+    insert into community_aggregates_fast select * from community_aggregates_view where id = NEW.id;
+
+    -- Update user view due to owner changes
+    delete from user_fast where id = NEW.creator_id;
+    insert into user_fast select * from user_view where id = NEW.creator_id;
+    
+    -- Update post view due to community changes
+    delete from post_aggregates_fast where community_id = NEW.id;
+    insert into post_aggregates_fast select * from post_aggregates_view where community_id = NEW.id;
+
+  -- TODO make sure this shows up in the users page ?
+  ELSIF (TG_OP = 'INSERT') THEN
+    insert into community_aggregates_fast select * from community_aggregates_view where id = NEW.id;
+  END IF;
+
+  return null;
+end $$;
+
+-- Comment
+
+drop view user_mention_view;
+drop view comment_view;
+drop view comment_aggregates_view;
+
+create view comment_aggregates_view as 
+select
+	ct.*,
+	-- community details
+	p.community_id,
+	c.actor_id as community_actor_id,
+	c."local" as community_local,
+	c."name" as community_name,
+	-- creator details
+	u.banned as banned,
+  coalesce(cb.id, 0)::bool as banned_from_community,
+	u.actor_id as creator_actor_id,
+	u.local as creator_local,
+	u.name as creator_name,
+	u.avatar as creator_avatar,
+	-- score details
+	coalesce(cl.total, 0) as score,
+	coalesce(cl.up, 0) as upvotes,
+	coalesce(cl.down, 0) as downvotes,
+	hot_rank(coalesce(cl.total, 0), ct.published) as hot_rank
+from comment ct
+left join post p on ct.post_id = p.id
+left join community c on p.community_id = c.id
+left join user_ u on ct.creator_id = u.id 
+left join community_user_ban cb on ct.creator_id = cb.user_id and p.id = ct.post_id and p.community_id = cb.community_id
+left join (
+	select
+		l.comment_id as id,
+		sum(l.score) as total,
+		count(case when l.score = 1 then 1 else null end) as up,
+		count(case when l.score = -1 then 1 else null end) as down
+	from comment_like l
+	group by comment_id
+) as cl on cl.id = ct.id;
+
+create or replace view comment_view as (
+select
+	cav.*,
+  us.user_id as user_id,
+  us.my_vote as my_vote,
+  us.is_subbed::bool as subscribed,
+  us.is_saved::bool as saved
+from comment_aggregates_view cav
+cross join lateral (
+	select
+		u.id as user_id,
+		coalesce(cl.score, 0) as my_vote,
+    coalesce(cf.id, 0) as is_subbed,
+    coalesce(cs.id, 0) as is_saved
+	from user_ u
+	left join comment_like cl on u.id = cl.user_id and cav.id = cl.comment_id
+	left join comment_saved cs on u.id = cs.user_id and cs.comment_id = cav.id
+	left join community_follower cf on u.id = cf.user_id and cav.community_id = cf.community_id
+) as us
+
+union all 
+
+select 
+    cav.*,
+    null as user_id, 
+    null as my_vote,
+    null as subscribed,
+    null as saved
+from comment_aggregates_view cav
+);
+
+-- The fast view
+create table comment_aggregates_fast as select * from comment_aggregates_view;
+alter table comment_aggregates_fast add primary key (id);
+
+create view comment_fast_view as
+select
+	cav.*,
+  us.user_id as user_id,
+  us.my_vote as my_vote,
+  us.is_subbed::bool as subscribed,
+  us.is_saved::bool as saved
+from comment_aggregates_fast cav
+cross join lateral (
+	select
+		u.id as user_id,
+		coalesce(cl.score, 0) as my_vote,
+    coalesce(cf.id, 0) as is_subbed,
+    coalesce(cs.id, 0) as is_saved
+	from user_ u
+	left join comment_like cl on u.id = cl.user_id and cav.id = cl.comment_id
+	left join comment_saved cs on u.id = cs.user_id and cs.comment_id = cav.id
+	left join community_follower cf on u.id = cf.user_id and cav.community_id = cf.community_id
+) as us
+
+union all 
+
+select 
+    cav.*,
+    null as user_id, 
+    null as my_vote,
+    null as subscribed,
+    null as saved
+from comment_aggregates_fast cav;
+
+-- Do the reply_view referencing the comment_fast_view
+create view reply_fast_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_fast_view cv, closereply
+where closereply.id = cv.id
+;
+
+-- user mention
+create view user_mention_view as
+select 
+    c.id,
+    um.id as user_mention_id,
+    c.creator_id,
+    c.creator_actor_id,
+    c.creator_local,
+    c.post_id,
+    c.parent_id,
+    c.content,
+    c.removed,
+    um.read,
+    c.published,
+    c.updated,
+    c.deleted,
+    c.community_id,
+    c.community_actor_id,
+    c.community_local,
+    c.community_name,
+    c.banned,
+    c.banned_from_community,
+    c.creator_name,
+    c.creator_avatar,
+    c.score,
+    c.upvotes,
+    c.downvotes,
+    c.hot_rank,
+    c.user_id,
+    c.my_vote,
+    c.saved,
+    um.recipient_id,
+    (select actor_id from user_ u where u.id = um.recipient_id) as recipient_actor_id,
+    (select local from user_ u where u.id = um.recipient_id) as recipient_local
+from user_mention um, comment_view c
+where um.comment_id = c.id;
+
+create view user_mention_fast_view as 
+select
+    ac.id,
+    um.id as user_mention_id,
+    ac.creator_id,
+    ac.creator_actor_id,
+    ac.creator_local,
+    ac.post_id,
+    ac.parent_id,
+    ac.content,
+    ac.removed,
+    um.read,
+    ac.published,
+    ac.updated,
+    ac.deleted,
+    ac.community_id,
+    ac.community_actor_id,
+    ac.community_local,
+    ac.community_name,
+    ac.banned,
+    ac.banned_from_community,
+    ac.creator_name,
+    ac.creator_avatar,
+    ac.score,
+    ac.upvotes,
+    ac.downvotes,
+    ac.hot_rank,
+    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,
+    um.recipient_id,
+    (select actor_id from user_ u where u.id = um.recipient_id) as recipient_actor_id,
+    (select local from user_ u where u.id = um.recipient_id) as recipient_local
+from user_ u
+cross join (
+  select
+  ca.*
+  from comment_aggregates_fast ca
+) ac
+left join comment_like cl on u.id = cl.user_id and ac.id = cl.comment_id
+left join user_mention um on um.comment_id = ac.id
+
+union all
+
+select 
+    ac.id,
+    um.id as user_mention_id,
+    ac.creator_id,
+    ac.creator_actor_id,
+    ac.creator_local,
+    ac.post_id,
+    ac.parent_id,
+    ac.content,
+    ac.removed,
+    um.read,
+    ac.published,
+    ac.updated,
+    ac.deleted,
+    ac.community_id,
+    ac.community_actor_id,
+    ac.community_local,
+    ac.community_name,
+    ac.banned,
+    ac.banned_from_community,
+    ac.creator_name,
+    ac.creator_avatar,
+    ac.score,
+    ac.upvotes,
+    ac.downvotes,
+    ac.hot_rank,
+    null as user_id, 
+    null as my_vote,
+    null as saved,
+    um.recipient_id,
+    (select actor_id from user_ u where u.id = um.recipient_id) as recipient_actor_id,
+    (select local from user_ u where u.id = um.recipient_id) as recipient_local
+from comment_aggregates_fast ac
+left join user_mention um on um.comment_id = ac.id
+;
+
+
+drop trigger refresh_comment on comment;
+
+create trigger refresh_comment
+after insert or update or delete
+on comment
+for each row
+execute procedure refresh_comment();
+
+-- Sample select
+-- select * from comment_fast_view where content = 'test_comment' and user_id is null;
+-- Sample insert 
+-- insert into comment(creator_id, post_id, content) values (2, 2, 'test_comment');
+-- Sample delete
+-- delete from comment where content like 'test_comment';
+-- Sample update
+-- update comment set removed = true where content like 'test_comment';
+create or replace function refresh_comment()
+returns trigger language plpgsql
+as $$
+begin
+  IF (TG_OP = 'DELETE') THEN
+    delete from comment_aggregates_fast where id = OLD.id;
+
+    -- Update community number of comments
+    update community_aggregates_fast as caf
+    set number_of_comments = number_of_comments - 1
+    from post as p
+    where caf.id = p.community_id and p.id = OLD.post_id;
+
+  ELSIF (TG_OP = 'UPDATE') THEN
+    delete from comment_aggregates_fast where id = OLD.id;
+    insert into comment_aggregates_fast select * from comment_aggregates_view where id = NEW.id;
+  ELSIF (TG_OP = 'INSERT') THEN
+    insert into comment_aggregates_fast select * from comment_aggregates_view where id = NEW.id;
+
+    -- Update user view due to comment count
+    update user_fast 
+    set number_of_comments = number_of_comments + 1
+    where id = NEW.creator_id;
+    
+    -- Update post view due to comment count, new comment activity time, but only on new posts
+    -- TODO this could be done more efficiently
+    delete from post_aggregates_fast where id = NEW.post_id;
+    insert into post_aggregates_fast select * from post_aggregates_view where id = NEW.post_id;
+
+    -- Force the hot rank as zero on week-older posts
+    update post_aggregates_fast as paf
+    set hot_rank = 0
+    where paf.id = NEW.post_id and (paf.published < ('now'::timestamp - '1 week'::interval));
+
+    -- Update community number of comments
+    update community_aggregates_fast as caf
+    set number_of_comments = number_of_comments + 1 
+    from post as p
+    where caf.id = p.community_id and p.id = NEW.post_id;
+
+  END IF;
+
+  return null;
+end $$;
+
+
+-- post_like
+-- select id, score, my_vote from post_fast_view where id = 29 and user_id = 4;
+-- Sample insert 
+-- insert into post_like(user_id, post_id, score) values (4, 29, 1);
+-- Sample delete
+-- delete from post_like where user_id = 4 and post_id = 29;
+-- Sample update
+-- update post_like set score = -1 where user_id = 4 and post_id = 29;
+
+-- TODO test this a LOT
+create or replace function refresh_post_like()
+returns trigger language plpgsql
+as $$
+begin
+  IF (TG_OP = 'DELETE') THEN
+    update post_aggregates_fast 
+    set score = case 
+      when (OLD.score = 1) then score - 1 
+      else score + 1 end,
+    upvotes = case 
+      when (OLD.score = 1) then upvotes - 1 
+      else upvotes end,
+    downvotes = case 
+      when (OLD.score = -1) then downvotes - 1 
+      else downvotes end
+    where id = OLD.post_id;
+
+  ELSIF (TG_OP = 'INSERT') THEN
+    update post_aggregates_fast 
+    set score = case 
+      when (NEW.score = 1) then score + 1 
+      else score - 1 end,
+    upvotes = case 
+      when (NEW.score = 1) then upvotes + 1 
+      else upvotes end,
+    downvotes = case 
+      when (NEW.score = -1) then downvotes + 1 
+      else downvotes end
+    where id = NEW.post_id;
+  END IF;
+
+  return null;
+end $$;
+
+drop trigger refresh_post_like on post_like;
+create trigger refresh_post_like
+after insert or delete
+on post_like
+for each row
+execute procedure refresh_post_like();
+
+-- comment_like
+-- select id, score, my_vote from comment_fast_view where id = 29 and user_id = 4;
+-- Sample insert 
+-- insert into comment_like(user_id, comment_id, post_id, score) values (4, 29, 51, 1);
+-- Sample delete
+-- delete from comment_like where user_id = 4 and comment_id = 29;
+-- Sample update
+-- update comment_like set score = -1 where user_id = 4 and comment_id = 29;
+create or replace function refresh_comment_like()
+returns trigger language plpgsql
+as $$
+begin
+  -- TODO possibly select from comment_fast to get previous scores, instead of re-fetching the views?
+  IF (TG_OP = 'DELETE') THEN
+    update comment_aggregates_fast 
+    set score = case 
+      when (OLD.score = 1) then score - 1 
+      else score + 1 end,
+    upvotes = case 
+      when (OLD.score = 1) then upvotes - 1 
+      else upvotes end,
+    downvotes = case 
+      when (OLD.score = -1) then downvotes - 1 
+      else downvotes end
+    where id = OLD.comment_id;
+
+  ELSIF (TG_OP = 'INSERT') THEN
+    update comment_aggregates_fast 
+    set score = case 
+      when (NEW.score = 1) then score + 1 
+      else score - 1 end,
+    upvotes = case 
+      when (NEW.score = 1) then upvotes + 1 
+      else upvotes end,
+    downvotes = case 
+      when (NEW.score = -1) then downvotes + 1 
+      else downvotes end
+    where id = NEW.comment_id;
+  END IF;
+
+  return null;
+end $$;
+
+drop trigger refresh_comment_like on comment_like;
+create trigger refresh_comment_like
+after insert or delete
+on comment_like
+for each row
+execute procedure refresh_comment_like();
+
+-- Community user ban
+
+drop trigger refresh_community_user_ban on community_user_ban;
+create trigger refresh_community_user_ban
+after insert or delete -- Note this is missing after update
+on community_user_ban
+for each row
+execute procedure refresh_community_user_ban();
+
+-- select creator_name, banned_from_community from comment_fast_view where user_id = 4 and content = 'test_before_ban';
+-- select creator_name, banned_from_community, community_id from comment_aggregates_fast where content = 'test_before_ban';
+-- Sample insert 
+-- insert into comment(creator_id, post_id, content) values (1198, 341, 'test_before_ban');
+-- insert into community_user_ban(community_id, user_id) values (2, 1198);
+-- Sample delete
+-- delete from community_user_ban where user_id = 1198 and community_id = 2;
+-- delete from comment where content = 'test_before_ban';
+-- update comment_aggregates_fast set banned_from_community = false where creator_id = 1198 and community_id = 2;
+create or replace function refresh_community_user_ban()
+returns trigger language plpgsql
+as $$
+begin
+  -- TODO possibly select from comment_fast to get previous scores, instead of re-fetching the views?
+  IF (TG_OP = 'DELETE') THEN
+    update comment_aggregates_fast set banned_from_community = false where creator_id = OLD.user_id and community_id = OLD.community_id;
+    update post_aggregates_fast set banned_from_community = false where creator_id = OLD.user_id and community_id = OLD.community_id;
+  ELSIF (TG_OP = 'INSERT') THEN
+    update comment_aggregates_fast set banned_from_community = true where creator_id = NEW.user_id and community_id = NEW.community_id;
+    update post_aggregates_fast set banned_from_community = true where creator_id = NEW.user_id and community_id = NEW.community_id;
+  END IF;
+
+  return null;
+end $$;
+
+-- Community follower
+
+drop trigger refresh_community_follower on community_follower;
+create trigger refresh_community_follower
+after insert or delete -- Note this is missing after update
+on community_follower
+for each row
+execute procedure refresh_community_follower();
+
+create or replace function refresh_community_follower()
+returns trigger language plpgsql
+as $$
+begin
+  IF (TG_OP = 'DELETE') THEN
+    update community_aggregates_fast set number_of_subscribers = number_of_subscribers - 1 where id = OLD.community_id;
+  ELSIF (TG_OP = 'INSERT') THEN
+    update community_aggregates_fast set number_of_subscribers = number_of_subscribers + 1 where id = NEW.community_id;
+  END IF;
+
+  return null;
+end $$;

server/query_testing/generate_explain_reports.sh

@@ -1,31 +1,42 @@
 #!/bin/bash
 set -e
 
+# You can import these to http://tatiyants.com/pev/#/plans/new
+
 # Do the views first
 
-echo "explain (analyze, format json) select * from user_mview" > explain.sql
+echo "explain (analyze, format json) select * from user_fast" > explain.sql
-psql -qAt -U lemmy -f explain.sql > user_view.json
+psql -qAt -U lemmy -f explain.sql > user_fast.json
 
-echo "explain (analyze, format json) select * from post_mview where user_id is null order by hot_rank desc, published desc" > explain.sql
+echo "explain (analyze, format json) select * from post_view where user_id is null order by hot_rank desc, published desc" > explain.sql
 psql -qAt -U lemmy -f explain.sql > post_view.json
 
-echo "explain (analyze, format json) select * from comment_mview where user_id is null" > explain.sql
+echo "explain (analyze, format json) select * from post_fast_view where user_id is null order by hot_rank desc, published desc" > explain.sql
+psql -qAt -U lemmy -f explain.sql > post_fast_view.json
+
+echo "explain (analyze, format json) select * from comment_view where user_id is null" > explain.sql
 psql -qAt -U lemmy -f explain.sql > comment_view.json
 
-echo "explain (analyze, format json) select * from community_mview where user_id is null order by hot_rank desc" > explain.sql
+echo "explain (analyze, format json) select * from comment_fast_view where user_id is null" > explain.sql
+psql -qAt -U lemmy -f explain.sql > comment_fast_view.json
+
+echo "explain (analyze, format json) select * from community_view where user_id is null order by hot_rank desc" > explain.sql
 psql -qAt -U lemmy -f explain.sql > community_view.json
 
+echo "explain (analyze, format json) select * from community_fast_view where user_id is null order by hot_rank desc" > explain.sql
+psql -qAt -U lemmy -f explain.sql > community_fast_view.json
+
 echo "explain (analyze, format json) select * from site_view limit 1" > explain.sql
 psql -qAt -U lemmy -f explain.sql > site_view.json
 
-echo "explain (analyze, format json) select * from reply_view where user_id = 34 and recipient_id = 34" > explain.sql
+echo "explain (analyze, format json) select * from reply_fast_view where user_id = 34 and recipient_id = 34" > explain.sql
-psql -qAt -U lemmy -f explain.sql > reply_view.json
+psql -qAt -U lemmy -f explain.sql > reply_fast_view.json
 
 echo "explain (analyze, format json) select * from user_mention_view where user_id = 34 and recipient_id = 34" > explain.sql
 psql -qAt -U lemmy -f explain.sql > user_mention_view.json
 
-echo "explain (analyze, format json) select * from user_mention_mview where user_id = 34 and recipient_id = 34" > explain.sql
+echo "explain (analyze, format json) select * from user_mention_fast_view where user_id = 34 and recipient_id = 34" > explain.sql
-psql -qAt -U lemmy -f explain.sql > user_mention_mview.json
+psql -qAt -U lemmy -f explain.sql > user_mention_fast_view.json
 
 grep "Execution Time" *.json
 

server/src/api/user.rs

@@ -678,7 +678,8 @@ impl Perform for Oper<AddAdmin> {
     }
 
     let added = data.added;
-    let add_admin = move |conn: &'_ _| User_::add_admin(conn, user_id, added);
+    let added_user_id = data.user_id;
+    let add_admin = move |conn: &'_ _| User_::add_admin(conn, added_user_id, added);
     if blocking(pool, add_admin).await?.is_err() {
       return Err(APIError::err("couldnt_update_user").into());
     }

server/src/db/code_migrations.rs

@@ -179,14 +179,10 @@ fn private_message_updates_2020_05_05(conn: &PgConnection) -> Result<(), LemmyEr
     .filter(local.eq(true))
     .load::<PrivateMessage>(conn)?;
 
-  sql_query("alter table private_message disable trigger refresh_private_message").execute(conn)?;
-
   for cpm in &incorrect_pms {
     PrivateMessage::update_ap_id(&conn, cpm.id)?;
   }
 
-  sql_query("alter table private_message enable trigger refresh_private_message").execute(conn)?;
-
   info!("{} private message rows updated.", incorrect_pms.len());
 
   Ok(())

server/src/db/comment_view.rs

@@ -1,3 +1,4 @@
+// TODO, remove the cross join here, just join to user directly
 use crate::db::{fuzzy_search, limit_and_offset, ListingType, MaybeOptional, SortType};
 use diesel::{dsl::*, pg::Pg, result::Error, *};
 use serde::{Deserialize, Serialize};
@@ -39,7 +40,7 @@ table! {
 }
 
 table! {
-  comment_mview (id) {
+  comment_fast_view (id) {
     id -> Int4,
     creator_id -> Int4,
     post_id -> Int4,
@@ -76,7 +77,7 @@ table! {
 #[derive(
   Queryable, Identifiable, PartialEq, Debug, Serialize, Deserialize, QueryableByName, Clone,
 )]
-#[table_name = "comment_view"]
+#[table_name = "comment_fast_view"]
 pub struct CommentView {
   pub id: i32,
   pub creator_id: i32,
@@ -112,7 +113,7 @@ pub struct CommentView {
 
 pub struct CommentQueryBuilder<'a> {
   conn: &'a PgConnection,
-  query: super::comment_view::comment_mview::BoxedQuery<'a, Pg>,
+  query: super::comment_view::comment_fast_view::BoxedQuery<'a, Pg>,
   listing_type: ListingType,
   sort: &'a SortType,
   for_community_id: Option<i32>,
@@ -127,9 +128,9 @@ pub struct CommentQueryBuilder<'a> {
 
 impl<'a> CommentQueryBuilder<'a> {
   pub fn create(conn: &'a PgConnection) -> Self {
-    use super::comment_view::comment_mview::dsl::*;
+    use super::comment_view::comment_fast_view::dsl::*;
 
-    let query = comment_mview.into_boxed();
+    let query = comment_fast_view.into_boxed();
 
     CommentQueryBuilder {
       conn,
@@ -198,7 +199,7 @@ impl<'a> CommentQueryBuilder<'a> {
   }
 
   pub fn list(self) -> Result<Vec<CommentView>, Error> {
-    use super::comment_view::comment_mview::dsl::*;
+    use super::comment_view::comment_fast_view::dsl::*;
 
     let mut query = self.query;
 
@@ -270,8 +271,8 @@ impl CommentView {
     from_comment_id: i32,
     my_user_id: Option<i32>,
   ) -> Result<Self, Error> {
-    use super::comment_view::comment_mview::dsl::*;
+    use super::comment_view::comment_fast_view::dsl::*;
-    let mut query = comment_mview.into_boxed();
+    let mut query = comment_fast_view.into_boxed();
 
     // The view lets you pass a null user_id, if you're not logged in
     if let Some(my_user_id) = my_user_id {
@@ -290,7 +291,7 @@ impl CommentView {
 
 // The faked schema since diesel doesn't do views
 table! {
-  reply_view (id) {
+  reply_fast_view (id) {
     id -> Int4,
     creator_id -> Int4,
     post_id -> Int4,
@@ -328,7 +329,7 @@ table! {
 #[derive(
   Queryable, Identifiable, PartialEq, Debug, Serialize, Deserialize, QueryableByName, Clone,
 )]
-#[table_name = "reply_view"]
+#[table_name = "reply_fast_view"]
 pub struct ReplyView {
   pub id: i32,
   pub creator_id: i32,
@@ -365,7 +366,7 @@ pub struct ReplyView {
 
 pub struct ReplyQueryBuilder<'a> {
   conn: &'a PgConnection,
-  query: super::comment_view::reply_view::BoxedQuery<'a, Pg>,
+  query: super::comment_view::reply_fast_view::BoxedQuery<'a, Pg>,
   for_user_id: i32,
   sort: &'a SortType,
   unread_only: bool,
@@ -375,9 +376,9 @@ pub struct ReplyQueryBuilder<'a> {
 
 impl<'a> ReplyQueryBuilder<'a> {
   pub fn create(conn: &'a PgConnection, for_user_id: i32) -> Self {
-    use super::comment_view::reply_view::dsl::*;
+    use super::comment_view::reply_fast_view::dsl::*;
 
-    let query = reply_view.into_boxed();
+    let query = reply_fast_view.into_boxed();
 
     ReplyQueryBuilder {
       conn,
@@ -411,7 +412,7 @@ impl<'a> ReplyQueryBuilder<'a> {
   }
 
   pub fn list(self) -> Result<Vec<ReplyView>, Error> {
-    use super::comment_view::reply_view::dsl::*;
+    use super::comment_view::reply_fast_view::dsl::*;
 
     let mut query = self.query;
 
@@ -615,8 +616,8 @@ mod tests {
       upvotes: 1,
       user_id: Some(inserted_user.id),
       my_vote: Some(1),
-      subscribed: None,
+      subscribed: Some(false),
-      saved: None,
+      saved: Some(false),
       ap_id: "http://fake.com".to_string(),
       local: true,
       community_actor_id: inserted_community.actor_id.to_owned(),

server/src/db/community_view.rs

@@ -1,4 +1,4 @@
-use super::community_view::community_mview::BoxedQuery;
+use super::community_view::community_fast_view::BoxedQuery;
 use crate::db::{fuzzy_search, limit_and_offset, MaybeOptional, SortType};
 use diesel::{pg::Pg, result::Error, *};
 use serde::{Deserialize, Serialize};
@@ -34,7 +34,7 @@ table! {
 }
 
 table! {
-  community_mview (id) {
+  community_fast_view (id) {
     id -> Int4,
     name -> Varchar,
     title -> Varchar,
@@ -114,7 +114,7 @@ table! {
 #[derive(
   Queryable, Identifiable, PartialEq, Debug, Serialize, Deserialize, QueryableByName, Clone,
 )]
-#[table_name = "community_view"]
+#[table_name = "community_fast_view"]
 pub struct CommunityView {
   pub id: i32,
   pub name: String,
@@ -156,9 +156,9 @@ pub struct CommunityQueryBuilder<'a> {
 
 impl<'a> CommunityQueryBuilder<'a> {
   pub fn create(conn: &'a PgConnection) -> Self {
-    use super::community_view::community_mview::dsl::*;
+    use super::community_view::community_fast_view::dsl::*;
 
-    let query = community_mview.into_boxed();
+    let query = community_fast_view.into_boxed();
 
     CommunityQueryBuilder {
       conn,
@@ -203,7 +203,7 @@ impl<'a> CommunityQueryBuilder<'a> {
   }
 
   pub fn list(self) -> Result<Vec<CommunityView>, Error> {
-    use super::community_view::community_mview::dsl::*;
+    use super::community_view::community_fast_view::dsl::*;
 
     let mut query = self.query;
 
@@ -259,9 +259,9 @@ impl CommunityView {
     from_community_id: i32,
     from_user_id: Option<i32>,
   ) -> Result<Self, Error> {
-    use super::community_view::community_mview::dsl::*;
+    use super::community_view::community_fast_view::dsl::*;
 
-    let mut query = community_mview.into_boxed();
+    let mut query = community_fast_view.into_boxed();
 
     query = query.filter(id.eq(from_community_id));
 

server/src/db/post_view.rs

@@ -1,4 +1,4 @@
-use super::post_view::post_mview::BoxedQuery;
+use super::post_view::post_fast_view::BoxedQuery;
 use crate::db::{fuzzy_search, limit_and_offset, ListingType, MaybeOptional, SortType};
 use diesel::{dsl::*, pg::Pg, result::Error, *};
 use serde::{Deserialize, Serialize};
@@ -25,12 +25,12 @@ table! {
     thumbnail_url -> Nullable<Text>,
     ap_id -> Text,
     local -> Bool,
-    banned -> Bool,
-    banned_from_community -> Bool,
     creator_actor_id -> Text,
     creator_local -> Bool,
     creator_name -> Varchar,
     creator_avatar -> Nullable<Text>,
+    banned -> Bool,
+    banned_from_community -> Bool,
     community_actor_id -> Text,
     community_local -> Bool,
     community_name -> Varchar,
@@ -52,7 +52,7 @@ table! {
 }
 
 table! {
-  post_mview (id) {
+  post_fast_view (id) {
     id -> Int4,
     name -> Varchar,
     url -> Nullable<Text>,
@@ -72,12 +72,12 @@ table! {
     thumbnail_url -> Nullable<Text>,
     ap_id -> Text,
     local -> Bool,
-    banned -> Bool,
-    banned_from_community -> Bool,
     creator_actor_id -> Text,
     creator_local -> Bool,
     creator_name -> Varchar,
     creator_avatar -> Nullable<Text>,
+    banned -> Bool,
+    banned_from_community -> Bool,
     community_actor_id -> Text,
     community_local -> Bool,
     community_name -> Varchar,
@@ -101,7 +101,7 @@ table! {
 #[derive(
   Queryable, Identifiable, PartialEq, Debug, Serialize, Deserialize, QueryableByName, Clone,
 )]
-#[table_name = "post_view"]
+#[table_name = "post_fast_view"]
 pub struct PostView {
   pub id: i32,
   pub name: String,
@@ -122,12 +122,12 @@ pub struct PostView {
   pub thumbnail_url: Option<String>,
   pub ap_id: String,
   pub local: bool,
-  pub banned: bool,
-  pub banned_from_community: bool,
   pub creator_actor_id: String,
   pub creator_local: bool,
   pub creator_name: String,
   pub creator_avatar: Option<String>,
+  pub banned: bool,
+  pub banned_from_community: bool,
   pub community_actor_id: String,
   pub community_local: bool,
   pub community_name: String,
@@ -166,9 +166,9 @@ pub struct PostQueryBuilder<'a> {
 
 impl<'a> PostQueryBuilder<'a> {
   pub fn create(conn: &'a PgConnection) -> Self {
-    use super::post_view::post_mview::dsl::*;
+    use super::post_view::post_fast_view::dsl::*;
 
-    let query = post_mview.into_boxed();
+    let query = post_fast_view.into_boxed();
 
     PostQueryBuilder {
       conn,
@@ -249,7 +249,7 @@ impl<'a> PostQueryBuilder<'a> {
   }
 
   pub fn list(self) -> Result<Vec<PostView>, Error> {
-    use super::post_view::post_mview::dsl::*;
+    use super::post_view::post_fast_view::dsl::*;
 
     let mut query = self.query;
 
@@ -345,10 +345,10 @@ impl PostView {
     from_post_id: i32,
     my_user_id: Option<i32>,
   ) -> Result<Self, Error> {
-    use super::post_view::post_mview::dsl::*;
+    use super::post_view::post_fast_view::dsl::*;
     use diesel::prelude::*;
 
-    let mut query = post_mview.into_boxed();
+    let mut query = post_fast_view.into_boxed();
 
     query = query.filter(id.eq(from_post_id));
 
@@ -470,6 +470,25 @@ mod tests {
       score: 1,
     };
 
+    let read_post_listings_with_user = PostQueryBuilder::create(&conn)
+      .listing_type(ListingType::Community)
+      .sort(&SortType::New)
+      .for_community_id(inserted_community.id)
+      .my_user_id(inserted_user.id)
+      .list()
+      .unwrap();
+
+    let read_post_listings_no_user = PostQueryBuilder::create(&conn)
+      .listing_type(ListingType::Community)
+      .sort(&SortType::New)
+      .for_community_id(inserted_community.id)
+      .list()
+      .unwrap();
+
+    let read_post_listing_no_user = PostView::read(&conn, inserted_post.id, None).unwrap();
+    let read_post_listing_with_user =
+      PostView::read(&conn, inserted_post.id, Some(inserted_user.id)).unwrap();
+
     // the non user version
     let expected_post_listing_no_user = PostView {
       user_id: None,
@@ -496,7 +515,7 @@ mod tests {
       score: 1,
       upvotes: 1,
       downvotes: 0,
-      hot_rank: 1728,
+      hot_rank: read_post_listing_no_user.hot_rank,
       published: inserted_post.published,
       newest_activity_time: inserted_post.published,
       updated: None,
@@ -541,13 +560,13 @@ mod tests {
       score: 1,
       upvotes: 1,
       downvotes: 0,
-      hot_rank: 1728,
+      hot_rank: read_post_listing_with_user.hot_rank,
       published: inserted_post.published,
       newest_activity_time: inserted_post.published,
       updated: None,
-      subscribed: None,
+      subscribed: Some(false),
-      read: None,
+      read: Some(false),
-      saved: None,
+      saved: Some(false),
       nsfw: false,
       embed_title: None,
       embed_description: None,
@@ -561,25 +580,6 @@ mod tests {
       community_local: true,
     };
 
-    let read_post_listings_with_user = PostQueryBuilder::create(&conn)
-      .listing_type(ListingType::Community)
-      .sort(&SortType::New)
-      .for_community_id(inserted_community.id)
-      .my_user_id(inserted_user.id)
-      .list()
-      .unwrap();
-
-    let read_post_listings_no_user = PostQueryBuilder::create(&conn)
-      .listing_type(ListingType::Community)
-      .sort(&SortType::New)
-      .for_community_id(inserted_community.id)
-      .list()
-      .unwrap();
-
-    let read_post_listing_no_user = PostView::read(&conn, inserted_post.id, None).unwrap();
-    let read_post_listing_with_user =
-      PostView::read(&conn, inserted_post.id, Some(inserted_user.id)).unwrap();
-
     let like_removed = PostLike::remove(&conn, &post_like_form).unwrap();
     let num_deleted = Post::delete(&conn, inserted_post.id).unwrap();
     Community::delete(&conn, inserted_community.id).unwrap();

server/src/db/private_message_view.rs

@@ -26,29 +26,6 @@ table! {
   }
 }
 
-table! {
-  private_message_mview (id) {
-    id -> Int4,
-    creator_id -> Int4,
-    recipient_id -> Int4,
-    content -> Text,
-    deleted -> Bool,
-    read -> Bool,
-    published -> Timestamp,
-    updated -> Nullable<Timestamp>,
-    ap_id -> Text,
-    local -> Bool,
-    creator_name -> Varchar,
-    creator_avatar -> Nullable<Text>,
-    creator_actor_id -> Text,
-    creator_local -> Bool,
-    recipient_name -> Varchar,
-    recipient_avatar -> Nullable<Text>,
-    recipient_actor_id -> Text,
-    recipient_local -> Bool,
-  }
-}
-
 #[derive(
   Queryable, Identifiable, PartialEq, Debug, Serialize, Deserialize, QueryableByName, Clone,
 )]
@@ -76,7 +53,7 @@ pub struct PrivateMessageView {
 
 pub struct PrivateMessageQueryBuilder<'a> {
   conn: &'a PgConnection,
-  query: super::private_message_view::private_message_mview::BoxedQuery<'a, Pg>,
+  query: super::private_message_view::private_message_view::BoxedQuery<'a, Pg>,
   for_recipient_id: i32,
   unread_only: bool,
   page: Option<i64>,
@@ -85,9 +62,9 @@ pub struct PrivateMessageQueryBuilder<'a> {
 
 impl<'a> PrivateMessageQueryBuilder<'a> {
   pub fn create(conn: &'a PgConnection, for_recipient_id: i32) -> Self {
-    use super::private_message_view::private_message_mview::dsl::*;
+    use super::private_message_view::private_message_view::dsl::*;
 
-    let query = private_message_mview.into_boxed();
+    let query = private_message_view.into_boxed();
 
     PrivateMessageQueryBuilder {
       conn,
@@ -115,7 +92,7 @@ impl<'a> PrivateMessageQueryBuilder<'a> {
   }
 
   pub fn list(self) -> Result<Vec<PrivateMessageView>, Error> {
-    use super::private_message_view::private_message_mview::dsl::*;
+    use super::private_message_view::private_message_view::dsl::*;
 
     let mut query = self.query.filter(deleted.eq(false));
 

server/src/db/user_mention_view.rs

@@ -40,7 +40,7 @@ table! {
 }
 
 table! {
-  user_mention_mview (id) {
+  user_mention_fast_view (id) {
     id -> Int4,
     user_mention_id -> Int4,
     creator_id -> Int4,
@@ -78,7 +78,7 @@ table! {
 #[derive(
   Queryable, Identifiable, PartialEq, Debug, Serialize, Deserialize, QueryableByName, Clone,
 )]
-#[table_name = "user_mention_view"]
+#[table_name = "user_mention_fast_view"]
 pub struct UserMentionView {
   pub id: i32,
   pub user_mention_id: i32,
@@ -115,7 +115,7 @@ pub struct UserMentionView {
 
 pub struct UserMentionQueryBuilder<'a> {
   conn: &'a PgConnection,
-  query: super::user_mention_view::user_mention_mview::BoxedQuery<'a, Pg>,
+  query: super::user_mention_view::user_mention_fast_view::BoxedQuery<'a, Pg>,
   for_user_id: i32,
   sort: &'a SortType,
   unread_only: bool,
@@ -125,9 +125,9 @@ pub struct UserMentionQueryBuilder<'a> {
 
 impl<'a> UserMentionQueryBuilder<'a> {
   pub fn create(conn: &'a PgConnection, for_user_id: i32) -> Self {
-    use super::user_mention_view::user_mention_mview::dsl::*;
+    use super::user_mention_view::user_mention_fast_view::dsl::*;
 
-    let query = user_mention_mview.into_boxed();
+    let query = user_mention_fast_view.into_boxed();
 
     UserMentionQueryBuilder {
       conn,
@@ -161,7 +161,7 @@ impl<'a> UserMentionQueryBuilder<'a> {
   }
 
   pub fn list(self) -> Result<Vec<UserMentionView>, Error> {
-    use super::user_mention_view::user_mention_mview::dsl::*;
+    use super::user_mention_view::user_mention_fast_view::dsl::*;
 
     let mut query = self.query;
 
@@ -208,9 +208,9 @@ impl UserMentionView {
     from_user_mention_id: i32,
     from_recipient_id: i32,
   ) -> Result<Self, Error> {
-    use super::user_mention_view::user_mention_view::dsl::*;
+    use super::user_mention_view::user_mention_fast_view::dsl::*;
 
-    user_mention_view
+    user_mention_fast_view
       .filter(user_mention_id.eq(from_user_mention_id))
       .filter(user_id.eq(from_recipient_id))
       .first::<Self>(conn)

server/src/db/user_view.rs

@@ -1,4 +1,4 @@
-use super::user_view::user_mview::BoxedQuery;
+use super::user_view::user_fast::BoxedQuery;
 use crate::db::{fuzzy_search, limit_and_offset, MaybeOptional, SortType};
 use diesel::{dsl::*, pg::Pg, result::Error, *};
 use serde::{Deserialize, Serialize};
@@ -26,7 +26,7 @@ table! {
 }
 
 table! {
-  user_mview (id) {
+  user_fast (id) {
     id -> Int4,
     actor_id -> Text,
     name -> Varchar,
@@ -50,7 +50,7 @@ table! {
 #[derive(
   Queryable, Identifiable, PartialEq, Debug, Serialize, Deserialize, QueryableByName, Clone,
 )]
-#[table_name = "user_view"]
+#[table_name = "user_fast"]
 pub struct UserView {
   pub id: i32,
   pub actor_id: String,
@@ -81,9 +81,9 @@ pub struct UserQueryBuilder<'a> {
 
 impl<'a> UserQueryBuilder<'a> {
   pub fn create(conn: &'a PgConnection) -> Self {
-    use super::user_view::user_mview::dsl::*;
+    use super::user_view::user_fast::dsl::*;
 
-    let query = user_mview.into_boxed();
+    let query = user_fast.into_boxed();
 
     UserQueryBuilder {
       conn,
@@ -100,7 +100,7 @@ impl<'a> UserQueryBuilder<'a> {
   }
 
   pub fn search_term<T: MaybeOptional<String>>(mut self, search_term: T) -> Self {
-    use super::user_view::user_mview::dsl::*;
+    use super::user_view::user_fast::dsl::*;
     if let Some(search_term) = search_term.get_optional() {
       self.query = self.query.filter(name.ilike(fuzzy_search(&search_term)));
     }
@@ -118,7 +118,7 @@ impl<'a> UserQueryBuilder<'a> {
   }
 
   pub fn list(self) -> Result<Vec<UserView>, Error> {
-    use super::user_view::user_mview::dsl::*;
+    use super::user_view::user_fast::dsl::*;
 
     let mut query = self.query;
 
@@ -151,17 +151,17 @@ impl<'a> UserQueryBuilder<'a> {
 
 impl UserView {
   pub fn read(conn: &PgConnection, from_user_id: i32) -> Result<Self, Error> {
-    use super::user_view::user_mview::dsl::*;
+    use super::user_view::user_fast::dsl::*;
-    user_mview.find(from_user_id).first::<Self>(conn)
+    user_fast.find(from_user_id).first::<Self>(conn)
   }
 
   pub fn admins(conn: &PgConnection) -> Result<Vec<Self>, Error> {
-    use super::user_view::user_mview::dsl::*;
+    use super::user_view::user_fast::dsl::*;
-    user_mview.filter(admin.eq(true)).load::<Self>(conn)
+    user_fast.filter(admin.eq(true)).load::<Self>(conn)
   }
 
   pub fn banned(conn: &PgConnection) -> Result<Vec<Self>, Error> {
-    use super::user_view::user_mview::dsl::*;
+    use super::user_view::user_fast::dsl::*;
-    user_mview.filter(banned.eq(true)).load::<Self>(conn)
+    user_fast.filter(banned.eq(true)).load::<Self>(conn)
   }
 }

server/src/schema.rs

@@ -33,6 +33,37 @@ table! {
     }
 }
 
+table! {
+    comment_aggregates_fast (id) {
+        id -> Int4,
+        creator_id -> Nullable<Int4>,
+        post_id -> Nullable<Int4>,
+        parent_id -> Nullable<Int4>,
+        content -> Nullable<Text>,
+        removed -> Nullable<Bool>,
+        read -> Nullable<Bool>,
+        published -> Nullable<Timestamp>,
+        updated -> Nullable<Timestamp>,
+        deleted -> Nullable<Bool>,
+        ap_id -> Nullable<Varchar>,
+        local -> Nullable<Bool>,
+        community_id -> Nullable<Int4>,
+        community_actor_id -> Nullable<Varchar>,
+        community_local -> Nullable<Bool>,
+        community_name -> Nullable<Varchar>,
+        banned -> Nullable<Bool>,
+        banned_from_community -> Nullable<Bool>,
+        creator_actor_id -> Nullable<Varchar>,
+        creator_local -> Nullable<Bool>,
+        creator_name -> Nullable<Varchar>,
+        creator_avatar -> Nullable<Text>,
+        score -> Nullable<Int8>,
+        upvotes -> Nullable<Int8>,
+        downvotes -> Nullable<Int8>,
+        hot_rank -> Nullable<Int4>,
+    }
+}
+
 table! {
     comment_like (id) {
         id -> Int4,
@@ -74,6 +105,34 @@ table! {
     }
 }
 
+table! {
+    community_aggregates_fast (id) {
+        id -> Int4,
+        name -> Nullable<Varchar>,
+        title -> Nullable<Varchar>,
+        description -> Nullable<Text>,
+        category_id -> Nullable<Int4>,
+        creator_id -> Nullable<Int4>,
+        removed -> Nullable<Bool>,
+        published -> Nullable<Timestamp>,
+        updated -> Nullable<Timestamp>,
+        deleted -> Nullable<Bool>,
+        nsfw -> Nullable<Bool>,
+        actor_id -> Nullable<Varchar>,
+        local -> Nullable<Bool>,
+        last_refreshed_at -> Nullable<Timestamp>,
+        creator_actor_id -> Nullable<Varchar>,
+        creator_local -> Nullable<Bool>,
+        creator_name -> Nullable<Varchar>,
+        creator_avatar -> Nullable<Text>,
+        category_name -> Nullable<Varchar>,
+        number_of_subscribers -> Nullable<Int8>,
+        number_of_posts -> Nullable<Int8>,
+        number_of_comments -> Nullable<Int8>,
+        hot_rank -> Nullable<Int4>,
+    }
+}
+
 table! {
     community_follower (id) {
         id -> Int4,
@@ -234,6 +293,48 @@ table! {
     }
 }
 
+table! {
+    post_aggregates_fast (id) {
+        id -> Int4,
+        name -> Nullable<Varchar>,
+        url -> Nullable<Text>,
+        body -> Nullable<Text>,
+        creator_id -> Nullable<Int4>,
+        community_id -> Nullable<Int4>,
+        removed -> Nullable<Bool>,
+        locked -> Nullable<Bool>,
+        published -> Nullable<Timestamp>,
+        updated -> Nullable<Timestamp>,
+        deleted -> Nullable<Bool>,
+        nsfw -> Nullable<Bool>,
+        stickied -> Nullable<Bool>,
+        embed_title -> Nullable<Text>,
+        embed_description -> Nullable<Text>,
+        embed_html -> Nullable<Text>,
+        thumbnail_url -> Nullable<Text>,
+        ap_id -> Nullable<Varchar>,
+        local -> Nullable<Bool>,
+        creator_actor_id -> Nullable<Varchar>,
+        creator_local -> Nullable<Bool>,
+        creator_name -> Nullable<Varchar>,
+        creator_avatar -> Nullable<Text>,
+        banned -> Nullable<Bool>,
+        banned_from_community -> Nullable<Bool>,
+        community_actor_id -> Nullable<Varchar>,
+        community_local -> Nullable<Bool>,
+        community_name -> Nullable<Varchar>,
+        community_removed -> Nullable<Bool>,
+        community_deleted -> Nullable<Bool>,
+        community_nsfw -> Nullable<Bool>,
+        number_of_comments -> Nullable<Int8>,
+        score -> Nullable<Int8>,
+        upvotes -> Nullable<Int8>,
+        downvotes -> Nullable<Int8>,
+        hot_rank -> Nullable<Int4>,
+        newest_activity_time -> Nullable<Timestamp>,
+    }
+}
+
 table! {
     post_like (id) {
         id -> Int4,
@@ -328,6 +429,28 @@ table! {
     }
 }
 
+table! {
+    user_fast (id) {
+        id -> Int4,
+        actor_id -> Nullable<Varchar>,
+        name -> Nullable<Varchar>,
+        avatar -> Nullable<Text>,
+        email -> Nullable<Text>,
+        matrix_user_id -> Nullable<Text>,
+        bio -> Nullable<Text>,
+        local -> Nullable<Bool>,
+        admin -> Nullable<Bool>,
+        banned -> Nullable<Bool>,
+        show_avatars -> Nullable<Bool>,
+        send_notifications_to_email -> Nullable<Bool>,
+        published -> Nullable<Timestamp>,
+        number_of_posts -> Nullable<Int8>,
+        post_score -> Nullable<Int8>,
+        number_of_comments -> Nullable<Int8>,
+        comment_score -> Nullable<Int8>,
+    }
+}
+
 table! {
     user_mention (id) {
         id -> Int4,
@@ -384,9 +507,11 @@ allow_tables_to_appear_in_same_query!(
   activity,
   category,
   comment,
+  comment_aggregates_fast,
   comment_like,
   comment_saved,
   community,
+  community_aggregates_fast,
   community_follower,
   community_moderator,
   community_user_ban,
@@ -401,6 +526,7 @@ allow_tables_to_appear_in_same_query!(
   mod_sticky_post,
   password_reset_request,
   post,
+  post_aggregates_fast,
   post_like,
   post_read,
   post_saved,
@@ -408,5 +534,6 @@ allow_tables_to_appear_in_same_query!(
   site,
   user_,
   user_ban,
+  user_fast,
   user_mention,
 );

ui/src/utils.ts

@@ -923,7 +923,7 @@ export function postSort(
         +a.removed - +b.removed ||
         +a.deleted - +b.deleted ||
         (communityType && +b.stickied - +a.stickied) ||
-        hotRankPost(b) - hotRankPost(a)
+        b.hot_rank - a.hot_rank
     );
   }
 }