lemmy/migrations/2023-07-04-153335_add_optim.../up.sql

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-- Create an admin person index
CREATE INDEX IF NOT EXISTS idx_person_admin ON person (admin);
-- Compound indexes, using featured_, then the other sorts, proved to be much faster
-- Drop the old indexes
DROP INDEX idx_post_aggregates_score;
DROP INDEX idx_post_aggregates_published;
DROP INDEX idx_post_aggregates_newest_comment_time;
DROP INDEX idx_post_aggregates_newest_comment_time_necro;
DROP INDEX idx_post_aggregates_featured_community;
DROP INDEX idx_post_aggregates_featured_local;
DROP INDEX idx_post_aggregates_hot;
DROP INDEX idx_post_aggregates_active;
-- featured_local
CREATE INDEX idx_post_aggregates_featured_local_score ON post_aggregates (featured_local DESC, score DESC);
CREATE INDEX idx_post_aggregates_featured_local_newest_comment_time ON post_aggregates (featured_local DESC, newest_comment_time DESC);
CREATE INDEX idx_post_aggregates_featured_local_newest_comment_time_necro ON post_aggregates (featured_local DESC, newest_comment_time_necro DESC);
CREATE INDEX idx_post_aggregates_featured_local_hot ON post_aggregates (featured_local DESC, hot_rank DESC);
CREATE INDEX idx_post_aggregates_featured_local_active ON post_aggregates (featured_local DESC, hot_rank_active DESC);
CREATE INDEX idx_post_aggregates_featured_local_published ON post_aggregates (featured_local DESC, published DESC);
CREATE INDEX idx_post_aggregates_published ON post_aggregates (published DESC);
-- featured_community
CREATE INDEX idx_post_aggregates_featured_community_score ON post_aggregates (featured_community DESC, score DESC);
CREATE INDEX idx_post_aggregates_featured_community_newest_comment_time ON post_aggregates (featured_community DESC, newest_comment_time DESC);
CREATE INDEX idx_post_aggregates_featured_community_newest_comment_time_necro ON post_aggregates (featured_community DESC, newest_comment_time_necro DESC);
CREATE INDEX idx_post_aggregates_featured_community_hot ON post_aggregates (featured_community DESC, hot_rank DESC);
CREATE INDEX idx_post_aggregates_featured_community_active ON post_aggregates (featured_community DESC, hot_rank_active DESC);
CREATE INDEX idx_post_aggregates_featured_community_published ON post_aggregates (featured_community DESC, published DESC);