Big Data Custom data analytics are expensive. DataFusion wants to change that. DataFusion is an open-source SQL query engine written in Rust using Arrow in-memory format. Kiera Fields Jul 16, 2026 - 5 min read Image credit: https://unsplash.com/@kjarrett Get the full story: Subscribe for free Join peers managing over $100 billion in annual IT spend and subscribe to unlock full access to The Stack’s analysis and events. Subscribe now Already a member? Sign in