Alex Merced 5/24/2026

Building Composable Query Engines with Rust Runtimes

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This article discusses the shift from monolithic query engines to composable architectures in data engineering. It highlights Apache DataFusion (Rust-native), Meta Velox (C++), Substrait, and Apache Arrow as key components. The article compares DataFusion and Velox, explains the four-layer composable stack, and provides a decision framework for platform engineers. It covers practical impacts on query performance, distributed workloads with Ballista, and the benefits of modularity for building custom analytics engines.

Building Composable Query Engines with Rust Runtimes

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