Notes from the San Francisco Apache DataFusion Meetup

Alexy Khrabrov walks through LangChain's new SOMA office before the San Francisco Apache DataFusion Meetup and checks in with the organisers and speakers as the room fills. Divya Ranganathan, Emil Sadek, Shehab Amin and Alexander Bianchi preview what they are about to present, spanning ADBC, Sail, distributed query execution and the growing DataFusion community. Recorded before the doors opened on 13 August 2026, it is the roundup of an evening whose five talks and three interviews are linked from this episode: adaptive query execution in DataFusion Distributed, a Spark-compatible engine in Rust, the DataFusion-backed database under LangSmith's traces, provisioning hundreds of thousands of isolated databases, and Arrow moving end to end without a row-oriented detour.