QuestDB is the open-source time-series database for demanding workloads—from trading floors to mission control. It delivers ultra-low latency, high ingestion throughput, and a multi-tier storage engine. Native support for Parquet and SQL keeps your data portable, AI-ready—no vendor lock-in.








QuestDB
For the story on how QuestDB came to be and the journey of its creator Vlad, see here: https://news.ycombinator.com/ite...
Applications: Capital markets, Physical AI, Aerospace, Energy, Crypto.