questdb/questdb

QuestDB is an open-source, high-performance time-series database built for demanding data workloads. It excels in scenarios requiring rapid data ingestion and real-time analytical queries, particularly for financial market data, sensor telemetry, and monitoring dashboards. Its architecture leverages column-oriented storage, parallelized vector execution, and SIMD instructions, implemented in zero-GC Java and C++, to deliver exceptional speed and hardware efficiency. It offers specialized SQL extensions for time-series analysis and a multi-tier storage engine, ensuring scalability and operational ease.