mirror of
https://github.com/LemmyNet/lemmy.git
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498 lines
12 KiB
SQL
498 lines
12 KiB
SQL
DROP VIEW user_mention_view;
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DROP VIEW reply_fast_view;
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DROP VIEW comment_fast_view;
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DROP VIEW comment_view;
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DROP VIEW user_mention_fast_view;
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DROP TABLE comment_aggregates_fast;
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DROP VIEW comment_aggregates_view;
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CREATE VIEW comment_aggregates_view AS
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SELECT
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ct.*,
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-- community details
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p.community_id,
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c.actor_id AS community_actor_id,
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c."local" AS community_local,
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c."name" AS community_name,
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-- creator details
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u.banned AS banned,
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coalesce(cb.id, 0)::bool AS banned_from_community,
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u.actor_id AS creator_actor_id,
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u.local AS creator_local,
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u.name AS creator_name,
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u.avatar AS creator_avatar,
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-- score details
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coalesce(cl.total, 0) AS score,
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coalesce(cl.up, 0) AS upvotes,
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coalesce(cl.down, 0) AS downvotes,
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hot_rank (coalesce(cl.total, 0), ct.published) AS hot_rank
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FROM
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comment ct
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LEFT JOIN post p ON ct.post_id = p.id
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LEFT JOIN community c ON p.community_id = c.id
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LEFT JOIN user_ u ON ct.creator_id = u.id
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LEFT JOIN community_user_ban cb ON ct.creator_id = cb.user_id
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AND p.id = ct.post_id
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AND p.community_id = cb.community_id
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LEFT JOIN (
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SELECT
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l.comment_id AS id,
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sum(l.score) AS total,
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count(
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CASE WHEN l.score = 1 THEN
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1
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ELSE
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NULL
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END) AS up,
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count(
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CASE WHEN l.score = - 1 THEN
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1
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ELSE
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NULL
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END) AS down
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FROM
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comment_like l
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GROUP BY
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comment_id) AS cl ON cl.id = ct.id;
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CREATE OR REPLACE VIEW comment_view AS (
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SELECT
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cav.*,
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us.user_id AS user_id,
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us.my_vote AS my_vote,
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us.is_subbed::bool AS subscribed,
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us.is_saved::bool AS saved
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FROM
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comment_aggregates_view cav
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CROSS JOIN LATERAL (
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SELECT
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u.id AS user_id,
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coalesce(cl.score, 0) AS my_vote,
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coalesce(cf.id, 0) AS is_subbed,
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coalesce(cs.id, 0) AS is_saved
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FROM
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user_ u
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LEFT JOIN comment_like cl ON u.id = cl.user_id
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AND cav.id = cl.comment_id
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LEFT JOIN comment_saved cs ON u.id = cs.user_id
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AND cs.comment_id = cav.id
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LEFT JOIN community_follower cf ON u.id = cf.user_id
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AND cav.community_id = cf.community_id) AS us
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UNION ALL
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SELECT
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cav.*,
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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 saved
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FROM
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comment_aggregates_view cav);
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CREATE TABLE comment_aggregates_fast AS
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SELECT
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*
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FROM
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comment_aggregates_view;
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ALTER TABLE comment_aggregates_fast
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ADD PRIMARY KEY (id);
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CREATE VIEW comment_fast_view AS
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SELECT
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cav.*,
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us.user_id AS user_id,
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us.my_vote AS my_vote,
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us.is_subbed::bool AS subscribed,
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us.is_saved::bool AS saved
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FROM
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comment_aggregates_fast cav
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CROSS JOIN LATERAL (
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SELECT
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u.id AS user_id,
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coalesce(cl.score, 0) AS my_vote,
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coalesce(cf.id, 0) AS is_subbed,
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coalesce(cs.id, 0) AS is_saved
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FROM
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user_ u
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LEFT JOIN comment_like cl ON u.id = cl.user_id
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AND cav.id = cl.comment_id
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LEFT JOIN comment_saved cs ON u.id = cs.user_id
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AND cs.comment_id = cav.id
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LEFT JOIN community_follower cf ON u.id = cf.user_id
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AND cav.community_id = cf.community_id) AS us
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UNION ALL
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SELECT
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cav.*,
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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 saved
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FROM
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comment_aggregates_fast cav;
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CREATE VIEW user_mention_view AS
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SELECT
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c.id,
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um.id AS user_mention_id,
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c.creator_id,
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c.creator_actor_id,
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c.creator_local,
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c.post_id,
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c.parent_id,
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c.content,
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c.removed,
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um.read,
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c.published,
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c.updated,
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c.deleted,
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c.community_id,
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c.community_actor_id,
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c.community_local,
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c.community_name,
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c.banned,
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c.banned_from_community,
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c.creator_name,
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c.creator_avatar,
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c.score,
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c.upvotes,
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c.downvotes,
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c.hot_rank,
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c.user_id,
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c.my_vote,
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c.saved,
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um.recipient_id,
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(
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SELECT
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actor_id
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FROM
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user_ u
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WHERE
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u.id = um.recipient_id) AS recipient_actor_id,
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(
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SELECT
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local
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FROM
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user_ u
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WHERE
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u.id = um.recipient_id) AS recipient_local
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FROM
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user_mention um,
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comment_view c
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WHERE
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um.comment_id = c.id;
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CREATE VIEW user_mention_fast_view AS
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SELECT
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ac.id,
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um.id AS user_mention_id,
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ac.creator_id,
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ac.creator_actor_id,
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ac.creator_local,
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ac.post_id,
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ac.parent_id,
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ac.content,
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ac.removed,
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um.read,
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ac.published,
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ac.updated,
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ac.deleted,
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ac.community_id,
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ac.community_actor_id,
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ac.community_local,
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ac.community_name,
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ac.banned,
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ac.banned_from_community,
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ac.creator_name,
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ac.creator_avatar,
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ac.score,
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ac.upvotes,
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ac.downvotes,
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ac.hot_rank,
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u.id AS user_id,
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coalesce(cl.score, 0) AS my_vote,
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(
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SELECT
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cs.id::bool
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FROM
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comment_saved cs
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WHERE
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u.id = cs.user_id
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AND cs.comment_id = ac.id) AS saved,
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um.recipient_id,
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(
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SELECT
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actor_id
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FROM
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user_ u
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WHERE
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u.id = um.recipient_id) AS recipient_actor_id,
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(
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SELECT
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local
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FROM
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user_ u
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WHERE
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u.id = um.recipient_id) AS recipient_local
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FROM
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user_ u
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CROSS JOIN (
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SELECT
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ca.*
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FROM
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comment_aggregates_fast ca) ac
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LEFT JOIN comment_like cl ON u.id = cl.user_id
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AND ac.id = cl.comment_id
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LEFT JOIN user_mention um ON um.comment_id = ac.id
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UNION ALL
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SELECT
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ac.id,
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um.id AS user_mention_id,
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ac.creator_id,
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ac.creator_actor_id,
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ac.creator_local,
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ac.post_id,
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ac.parent_id,
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ac.content,
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ac.removed,
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um.read,
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ac.published,
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ac.updated,
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ac.deleted,
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ac.community_id,
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ac.community_actor_id,
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ac.community_local,
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ac.community_name,
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ac.banned,
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ac.banned_from_community,
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ac.creator_name,
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ac.creator_avatar,
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ac.score,
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ac.upvotes,
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ac.downvotes,
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ac.hot_rank,
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NULL AS user_id,
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NULL AS my_vote,
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NULL AS saved,
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um.recipient_id,
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(
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SELECT
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actor_id
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FROM
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user_ u
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WHERE
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u.id = um.recipient_id) AS recipient_actor_id,
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(
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SELECT
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local
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FROM
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user_ u
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WHERE
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u.id = um.recipient_id) AS recipient_local
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FROM
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comment_aggregates_fast ac
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LEFT JOIN user_mention um ON um.comment_id = ac.id;
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-- Do the reply_view referencing the comment_fast_view
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CREATE VIEW reply_fast_view AS
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with closereply AS (
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SELECT
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c2.id,
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c2.creator_id AS sender_id,
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c.creator_id AS recipient_id
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FROM
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comment c
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INNER JOIN comment c2 ON c.id = c2.parent_id
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WHERE
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c2.creator_id != c.creator_id
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-- Do union where post is null
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UNION
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SELECT
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c.id,
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c.creator_id AS sender_id,
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p.creator_id AS recipient_id
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FROM
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comment c,
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post p
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WHERE
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c.post_id = p.id
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AND c.parent_id IS NULL
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AND c.creator_id != p.creator_id
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)
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SELECT
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cv.*,
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closereply.recipient_id
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FROM
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comment_fast_view cv,
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closereply
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WHERE
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closereply.id = cv.id;
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-- add creator_published to the post view
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DROP VIEW post_fast_view;
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DROP TABLE post_aggregates_fast;
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DROP VIEW post_view;
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DROP VIEW post_aggregates_view;
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CREATE VIEW post_aggregates_view AS
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SELECT
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p.*,
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-- creator details
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u.actor_id AS creator_actor_id,
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u."local" AS creator_local,
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u."name" AS creator_name,
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u.avatar AS creator_avatar,
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u.banned AS banned,
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cb.id::bool AS banned_from_community,
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-- community details
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c.actor_id AS community_actor_id,
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c."local" AS community_local,
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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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-- post score data/comment count
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coalesce(ct.comments, 0) AS number_of_comments,
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coalesce(pl.score, 0) AS score,
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coalesce(pl.upvotes, 0) AS upvotes,
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coalesce(pl.downvotes, 0) AS downvotes,
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hot_rank (coalesce(pl.score, 0), (
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CASE WHEN (p.published < ('now'::timestamp - '1 month'::interval)) THEN
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p.published
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ELSE
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greatest (ct.recent_comment_time, p.published)
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END)) AS hot_rank,
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(
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CASE WHEN (p.published < ('now'::timestamp - '1 month'::interval)) THEN
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p.published
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ELSE
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greatest (ct.recent_comment_time, p.published)
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END) AS newest_activity_time
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FROM
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post p
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LEFT JOIN user_ u ON p.creator_id = u.id
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LEFT JOIN community_user_ban cb ON p.creator_id = cb.user_id
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AND p.community_id = cb.community_id
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LEFT JOIN community c ON p.community_id = c.id
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LEFT JOIN (
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SELECT
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post_id,
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count(*) AS comments,
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max(published) AS recent_comment_time
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FROM
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comment
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GROUP BY
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post_id) ct ON ct.post_id = p.id
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LEFT JOIN (
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SELECT
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post_id,
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sum(score) AS score,
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sum(score) FILTER (WHERE score = 1) AS upvotes,
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- sum(score) FILTER (WHERE score = - 1) AS downvotes
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FROM
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post_like
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GROUP BY
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post_id) pl ON pl.post_id = p.id
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ORDER BY
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p.id;
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CREATE VIEW post_view AS
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SELECT
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pav.*,
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us.id AS user_id,
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us.user_vote AS my_vote,
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us.is_subbed::bool AS subscribed,
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us.is_read::bool AS read,
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us.is_saved::bool AS saved
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FROM
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post_aggregates_view pav
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CROSS JOIN LATERAL (
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SELECT
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u.id,
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coalesce(cf.community_id, 0) AS is_subbed,
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coalesce(pr.post_id, 0) AS is_read,
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coalesce(ps.post_id, 0) AS is_saved,
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coalesce(pl.score, 0) AS user_vote
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FROM
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user_ u
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LEFT JOIN community_user_ban cb ON u.id = cb.user_id
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AND cb.community_id = pav.community_id
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LEFT JOIN community_follower cf ON u.id = cf.user_id
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AND cf.community_id = pav.community_id
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LEFT JOIN post_read pr ON u.id = pr.user_id
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AND pr.post_id = pav.id
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LEFT JOIN post_saved ps ON u.id = ps.user_id
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AND ps.post_id = pav.id
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LEFT JOIN post_like pl ON u.id = pl.user_id
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AND pav.id = pl.post_id) AS us
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UNION ALL
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SELECT
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pav.*,
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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
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post_aggregates_view pav;
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CREATE TABLE post_aggregates_fast AS
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SELECT
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*
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FROM
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post_aggregates_view;
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ALTER TABLE post_aggregates_fast
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ADD PRIMARY KEY (id);
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CREATE VIEW post_fast_view AS
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SELECT
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pav.*,
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us.id AS user_id,
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us.user_vote AS my_vote,
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us.is_subbed::bool AS subscribed,
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us.is_read::bool AS read,
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us.is_saved::bool AS saved
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FROM
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post_aggregates_fast pav
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CROSS JOIN LATERAL (
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SELECT
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u.id,
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coalesce(cf.community_id, 0) AS is_subbed,
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coalesce(pr.post_id, 0) AS is_read,
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coalesce(ps.post_id, 0) AS is_saved,
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coalesce(pl.score, 0) AS user_vote
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FROM
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user_ u
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LEFT JOIN community_user_ban cb ON u.id = cb.user_id
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AND cb.community_id = pav.community_id
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LEFT JOIN community_follower cf ON u.id = cf.user_id
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AND cf.community_id = pav.community_id
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LEFT JOIN post_read pr ON u.id = pr.user_id
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AND pr.post_id = pav.id
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LEFT JOIN post_saved ps ON u.id = ps.user_id
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AND ps.post_id = pav.id
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LEFT JOIN post_like pl ON u.id = pl.user_id
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AND pav.id = pl.post_id) AS us
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UNION ALL
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SELECT
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pav.*,
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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
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post_aggregates_fast pav;
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CREATE INDEX idx_post_aggregates_fast_hot_rank_published ON post_aggregates_fast (hot_rank DESC, published DESC);
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