Gabriel Kaszewski
79f1e63bb8
Feed queries ran 5 correlated subqueries per row (3 COUNT + 2 EXISTS for engagement counts and viewer context). Replaced with LEFT JOIN aggregations computed once per query. Adds migration 016 with indexes on likes(thought_id), boosts(thought_id), thoughts(in_reply_to_id), and compound viewer-context indexes — expected to drop ~3s queries to <100ms on typical page sizes. Also removes WebFinger from the footer (requires query params, zero standalone value as a link).
11 lines
684 B
SQL
11 lines
684 B
SQL
-- Indexes for feed engagement counts and sorting.
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-- likes and boosts are joined/counted per thought on every feed query.
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-- thoughts(in_reply_to_id) is scanned for reply_count.
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CREATE INDEX IF NOT EXISTS idx_likes_thought_id ON likes(thought_id);
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CREATE INDEX IF NOT EXISTS idx_boosts_thought_id ON boosts(thought_id);
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CREATE INDEX IF NOT EXISTS idx_thoughts_in_reply_to_id ON thoughts(in_reply_to_id) WHERE in_reply_to_id IS NOT NULL;
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-- Viewer-context lookups: "did I like/boost this?"
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CREATE INDEX IF NOT EXISTS idx_likes_user_thought ON likes(user_id, thought_id);
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CREATE INDEX IF NOT EXISTS idx_boosts_user_thought ON boosts(user_id, thought_id);
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