Fusion Unleashed: Inside dbt’s Ground-Up Rewrite

We dive into dbt Labs’ announcement of the Fusion engine—dbt’s new, Rust-based execution engine that replaces the old Python core. Learn why speed and semantic understanding drove a complete rebuild, how Fusion turns SQL into a true compiler (parsing, type flow, and lineage) and what that unlocks: dramatic performance gains (parsing up to 30x faster; full project compilation ~2x faster in beta) and new developer experiences like a real-time VS Code extension with live error detection, smarter autocomplete, and real-time CTE previews. We’ll explore what this means for analytics engineers today and where it’s headed next.

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