Apache Pinot

Apache Pinot is a real-time OLAP datastore built for ultra-low-latency analytics on fresh data, combining high-speed streaming ingestion with powerful query performance. Pinot delivers true real-time upserts, a deeply cloud-elastic architecture with full separation of storage and compute, and the richest indexing ecosystem in the OLAP world—including inverted, range, text, JSON, geospatial, and its signature star-tree indexes—allowing it to serve complex analytical queries at sub-second latency even at massive scale.