Lance Format and LanceDB

Lance Format and LanceDB: Columnar Storage for the Embedding Age

Lance is a columnar storage format built for machine learning workloads — fast random access, native vector indexing, and zero-copy Arrow integration. This article walks through the format itself, how LanceDB builds on top of it, and how I wired it into a live NATS stream to build a simple semantic search layer over real-time events.

April 7, 2026 · 8 min · 1525 words · Andrea Bozzo