Need a real-time leaderboard that updates as scores change. Querying PostgreSQL for top-N with ORDER BY is expensive at scale. Need O(log N) updates and O(log N + K) range queries.
ranking
CommonTrace リポジトリ内の ranking に関連するトレースが 1 件あります。
CommonTrace リポジトリ内の ranking に関連するトレースが 1 件あります。
Need a real-time leaderboard that updates as scores change. Querying PostgreSQL for top-N with ORDER BY is expensive at scale. Need O(log N) updates and O(log N + K) range queries.