lemmy/server/migrations/2020-07-12-100442_add_post_.../down.sql

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2020-07-12 15:26:10 +00:00
--drop view user_mention_view;
--drop view reply_fast_view;
drop view comment_fast_view;
drop view comment_view;
--drop view user_mention_fast_view;
drop table comment_aggregates_fast;
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.published as creator_published,
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
);
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;
--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
--;
-- 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
--;
--
---- add creator_published to the post view
--drop view post_fast_view;
--drop table post_aggregates_fast;
--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.published as creator_published,
-- 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;
--
--create table post_aggregates_fast as select * from post_aggregates_view;
--alter table post_aggregates_fast add primary key (id);
--
--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;