76 lines
2.7 KiB
MySQL
76 lines
2.7 KiB
MySQL
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-- Go through all the tables joins, optimize every view, CTE, etc.
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create index idx_post_creator on post (creator_id);
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create index idx_post_community on post (community_id);
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create index idx_post_like_post on post_like (post_id);
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create index idx_post_like_user on post_like (user_id);
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create index idx_comment_creator on comment (creator_id);
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create index idx_comment_parent on comment (parent_id);
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create index idx_comment_post on comment (post_id);
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create index idx_comment_like_comment on comment_like (comment_id);
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create index idx_comment_like_user on comment_like (user_id);
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create index idx_comment_like_post on comment_like (post_id);
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create index idx_community_creator on community (creator_id);
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create index idx_community_category on community (category_id);
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create index idx_community_follower_community on community_follower (community_id);
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create index idx_community_follower_user on community_follower (user_id);
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create index idx_community_user_ban_community on community_user_ban (community_id);
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create index idx_community_user_ban_user on community_user_ban (user_id);
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-- optimize post_view
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drop view post_view;
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create view post_view as
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with all_post as
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(
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select
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p.*,
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u.banned as banned,
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(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,
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u.name as creator_name,
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u.avatar as creator_avatar,
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c.name as community_name,
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c.removed as community_removed,
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c.deleted as community_deleted,
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c.nsfw as community_nsfw,
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(select count(*) from comment where comment.post_id = p.id) as number_of_comments,
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coalesce(sum(pl.score), 0) as score,
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count (case when pl.score = 1 then 1 else null end) as upvotes,
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count (case when pl.score = -1 then 1 else null end) as downvotes,
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hot_rank(coalesce(sum(pl.score) , 0), p.published) as hot_rank
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from post p
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left join post_like pl on p.id = pl.post_id
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inner join user_ u on p.creator_id = u.id
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inner join community c on p.community_id = c.id
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group by p.id, u.banned, u.name, u.avatar, c.name, c.removed, c.deleted, c.nsfw
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)
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select
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ap.*,
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u.id as user_id,
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coalesce(pl.score, 0) as my_vote,
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(select cf.id::bool from community_follower cf where u.id = cf.user_id and cf.community_id = ap.community_id) as subscribed,
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(select pr.id::bool from post_read pr where u.id = pr.user_id and pr.post_id = ap.id) as read,
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(select ps.id::bool from post_saved ps where u.id = ps.user_id and ps.post_id = ap.id) as saved
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from user_ u
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cross join all_post ap
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left join post_like pl on u.id = pl.user_id and ap.id = pl.post_id
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union all
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select
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ap.*,
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null as user_id,
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null as my_vote,
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null as subscribed,
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null as read,
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null as saved
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from all_post ap
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;
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