Sohu Tech Products
Jan 24, 2024 · Databases
Optimizing Database Expression Evaluation with JIT Technology Using Gandiva
The article explains how database expression evaluation—especially in WHERE and SELECT clauses—can be dramatically accelerated by replacing interpreted AST traversal with Just‑In‑Time compilation using Apache Gandiva, which leverages LLVM to generate SIMD‑optimized machine code for Arrow columnar data, and discusses extensions such as timestamp, array, higher‑order functions, and UDF support.
Apache ArrowApache GandivaDatabase Optimization
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