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andygrove/README.md

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.

Career

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.

Hobbies

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

Pinned

  1. apache/arrow-datafusion Public

    Apache Arrow DataFusion and Ballista query engines

    Rust 1.9k 329

  2. sqlparser-rs/sqlparser-rs Public

    Extensible SQL Lexer and Parser for Rust

    Rust 1.1k 238

  3. apache/arrow-rs Public

    Official Rust implementation of Apache Arrow

    Rust 850 207

  4. apache/spark Public

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

    Scala 32.8k 25.5k

  5. NVIDIA/spark-rapids Public

    Spark RAPIDS plugin - accelerate Apache Spark with GPUs

    Scala 411 133

  6. rapidsai/cudf Public

    cuDF - GPU DataFrame Library

    C++ 4.7k 606

1,282 contributions in the last year

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Contribution activity

May 2022

Created 5 commits in 1 repository

Created a pull request in apache/arrow-datafusion that received 2 comments

Fix bug in subquery join filters referencing outer query

Which issue does this PR close? Closes #2415 Rationale for this change Fixes a bug. What changes are included in this PR? The issue was that the SQ…

+78 −9 • 2 comments
Opened 5 other pull requests in 1 repository
Reviewed 17 pull requests in 2 repositories
apache/arrow-datafusion 16 pull requests
NVIDIA/spark-rapids 1 pull request

Created an issue in apache/arrow-datafusion that received 1 comment

Type-coercion error with decimal type

Describe the bug I am trying to run query SELECT round(c1/3, 2) FROM aggregate_simple order by c1 where c1 is a decimal. The query fails with Coerc…

1 comment
Opened 5 other issues in 1 repository