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Hi there 👋

I'm Andy Grove, a software engineer specializing in distributed systems and query engines. I am the author of the book How Query Engines Work.


I work for NVIDIA where I contribute to the RAPIDS Accelerator for Apache Spark, which is an open source plugin that provides GPU-acceleration for ETL workloads, leveraging the RAPIDS cuDF GPU DataFrame library which uses the Apache Arrow memory model.

Open Source

I am a PMC member and active contributor in the Apache Arrow project, where I have made the following donations:

I am also the original author of the sqlparser-rs crate.


I occasionally work on hobby projects involving digital electronics, microcontrollers, woodworking, and similar skills. Some of my projects have been featured on popular "maker" web sites.

Social Media

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  1. Apache Arrow DataFusion and Ballista query engines

    Rust 1.4k 214

  2. Extensible SQL Lexer and Parser for Rust

    Rust 885 176

  3. Official Rust implementation of Apache Arrow

    Rust 651 149

  4. Apache Spark - A unified analytics engine for large-scale data processing

    Scala 31.5k 24.9k

  5. Spark RAPIDS plugin - accelerate Apache Spark with GPUs

    Scala 362 122

  6. cuDF - GPU DataFrame Library

    C++ 4.4k 578

1,726 contributions in the last year

Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Mon Wed Fri

Contribution activity

December 2021

Created 10 commits in 1 repository

Created a pull request in NVIDIA/spark-rapids that received 7 comments

Created an issue in NVIDIA/spark-rapids that received 2 comments

[DOC] Provide shim class hierarchy information

Report needed documentation The shim layer is complex and the IDE doesn't help me much because I only have a subset of the shim classes on the clas…


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