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be1389420b
* SQL format checking, 1. * SQL format checking, 2. * SQL format checking, 3. * SQL format checking, 4. * SQL format checking, 5. * Running pg_format * Getting rid of comment. * Upping pg_format version. * Using git ls-files for sql format check. * Fixing sql lints. * Addressing PR comments.
53 lines
2.2 KiB
PL/PgSQL
53 lines
2.2 KiB
PL/PgSQL
-- Need to add immutable to the hot_rank function in order to index by it
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-- Rank = ScaleFactor * sign(Score) * log(1 + abs(Score)) / (Time + 2)^Gravity
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CREATE OR REPLACE FUNCTION hot_rank (score numeric, published timestamp without time zone)
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RETURNS integer
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AS $$
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BEGIN
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-- hours_diff:=EXTRACT(EPOCH FROM (timezone('utc',now()) - published))/3600
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RETURN floor(10000 * log(greatest (1, score + 3)) / power(((EXTRACT(EPOCH FROM (timezone('utc', now()) - published)) / 3600) + 2), 1.8))::integer;
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END;
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$$
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LANGUAGE plpgsql
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IMMUTABLE;
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-- Post_aggregates
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CREATE INDEX idx_post_aggregates_stickied_hot ON post_aggregates (stickied DESC, hot_rank (score, published) DESC, published DESC);
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CREATE INDEX idx_post_aggregates_hot ON post_aggregates (hot_rank (score, published) DESC, published DESC);
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CREATE INDEX idx_post_aggregates_stickied_active ON post_aggregates (stickied DESC, hot_rank (score, newest_comment_time) DESC, newest_comment_time DESC);
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CREATE INDEX idx_post_aggregates_active ON post_aggregates (hot_rank (score, newest_comment_time) DESC, newest_comment_time DESC);
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CREATE INDEX idx_post_aggregates_stickied_score ON post_aggregates (stickied DESC, score DESC);
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CREATE INDEX idx_post_aggregates_score ON post_aggregates (score DESC);
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CREATE INDEX idx_post_aggregates_stickied_published ON post_aggregates (stickied DESC, published DESC);
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CREATE INDEX idx_post_aggregates_published ON post_aggregates (published DESC);
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-- Comment
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CREATE INDEX idx_comment_published ON comment (published DESC);
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-- Comment_aggregates
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CREATE INDEX idx_comment_aggregates_hot ON comment_aggregates (hot_rank (score, published) DESC, published DESC);
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CREATE INDEX idx_comment_aggregates_score ON comment_aggregates (score DESC);
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-- User
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CREATE INDEX idx_user_published ON user_ (published DESC);
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-- User_aggregates
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CREATE INDEX idx_user_aggregates_comment_score ON user_aggregates (comment_score DESC);
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-- Community
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CREATE INDEX idx_community_published ON community (published DESC);
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-- Community_aggregates
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CREATE INDEX idx_community_aggregates_hot ON community_aggregates (hot_rank (subscribers, published) DESC, published DESC);
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CREATE INDEX idx_community_aggregates_subscribers ON community_aggregates (subscribers DESC);
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