AI visibility report for QuestDB in Databases & Data Infrastructure.

QuestDB is an open-source, SQL-first time-series database founded in 2019 and headquartered in London, UK. Built from the ground up in zero-GC Java and C++ with SIMD-vectorized execution, it targets high-throughput, low-latency workloads in capital markets, IoT, and real-time analytics. The storage engine uses a write-ahead log, time-partitioned columnar format, and automated tiering to Apache Parquet on object storage—all queryable through a single SQL layer. Time-series SQL extensions include ASOF JOIN, SAMPLE BY, LATEST ON, and streaming materialized views. N-dimensional arrays support order-book analytics. QuestDB is licensed Apache 2.0; an Enterprise edition adds HA with <100ms failover, RBAC, TLS, SSO, and SLA-backed creator support. The project has over 16,700 GitHub stars and is deployed in production by B3 Exchange, HDFC Bank, Airbus, OKX, and BTG Pactual, among others.