polars VS datafusion

Compare polars vs datafusion and see what are their differences.

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polars datafusion
149 61
31,656 6,667
1.6% 2.4%
10.0 10.0
5 days ago 14 days ago
Rust Rust
GNU General Public License v3.0 or later Apache License 2.0
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

polars

Posts with mentions or reviews of polars. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-10-30.

datafusion

Posts with mentions or reviews of datafusion. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2025-02-03.
  • Ask HN: Who wants to be hired? (February 2025)
    12 projects | news.ycombinator.com | 3 Feb 2025
    Remote: Yes

    Willing to relocate: Yes

    Technologies: Rust, Nodejs, Javascript, Typescript, Golang

    Résumé/CV: https://drive.google.com/drive/folders/1ecTn700lcmt8cqlnBTtm...

    Email: [email protected]

    Github: https://github.com/jatin510

    Info: Hi, I'm Jagdish Parihar! A Backend Engineer with 4+ years of experience building scalable systems and microservices using Rust, Node.js, and Golang. I've contributed to open-source projects like Apache DataFusion and thrive on solving complex backend challenges.

    I'm exploring the opportunity to be working in the DB based startups. I am looking for an entry to be an engineer who will work on databases. Currently, I am contributing to open source, looking for part-time/full-time working with databases.

    Datafusion contributions: https://github.com/apache/datafusion/pulls?q=is%3Apr+author%...

    Datafusion comet contributions: https://github.com/apache/datafusion-comet/pulls?q=is%3Apr+a...

    Let’s connect!

  • Apache DataFusion
    3 projects | news.ycombinator.com | 12 Jan 2025
  • How to build a new Harlequin adapter with Poetry
    6 projects | dev.to | 17 Jul 2024
    Harlequin is a TUI client for SQL databases known for its light-weight extensive support for SQL databases. It is a versatile tool for data exploration and analysis workflows. Harlequin provides an interactive SQL editor with features like autocomplete, syntax highlighting, and query history. It also has a results viewer that can display large result sets. However, Harlequin did not have a DataFusion adapter before. Thankfully, it was really easy to add one.
  • Why you should keep an eye on Apache DataFusion and its community.
    4 projects | dev.to | 8 Jul 2024
    In case you don't know what Apache DataFusion is, here's the high-level blurb.
  • Make Rust Object Oriented with the dual-trait pattern
    2 projects | dev.to | 8 Jul 2024
    I've invented 😎 this dual-trait pattern for the purposes of the logical planner, as seen in this merged PR. The problem was that the nodes in the plan (filter, select, etc.) had to support at the same time:
  • Pg_lakehouse: A DuckDB Alternative in Postgres
    3 projects | news.ycombinator.com | 12 Jun 2024
  • Velox: Meta's Unified Execution Engine [pdf]
    2 projects | news.ycombinator.com | 25 Mar 2024
    Python's Substrait seems like the biggest/most-used competitor-ish out there. I'd love some compare & contrast; my sense is that Substrait has a smaller ambition, and more wants to be a language for talking about execution rather than a full on execution engine. https://github.com/substrait-io/substrait

    We can also see from the DataFusion discussion that they too see themselves as a bit of a Velox competitor. https://github.com/apache/arrow-datafusion/discussions/6441

  • What I Talk About When I Talk About Query Optimizer (Part 1): IR Design
    7 projects | news.ycombinator.com | 29 Jan 2024
    Agree, substrait is a really cool project! Related: if you like substrait you might want to check out datafusion too. The project is a query execution engine built on top of Apache Arrow (with SQL parser, query planner & optimizer, execution engine, extensible user defined functions, among others) and it implements a substrait provider and consumer: https://github.com/apache/arrow-datafusion/tree/main/datafus...
  • DuckDB performance improvements with the latest release
    8 projects | news.ycombinator.com | 6 Nov 2023
    The draft contains some preliminary benchmark results, comparing it to DuckDB.

    https://github.com/apache/arrow-datafusion/issues/6782

  • Apache Arrow DataFusion
    1 project | news.ycombinator.com | 1 Oct 2023

What are some alternatives?

When comparing polars and datafusion you can also consider the following projects:

datatable - A Python package for manipulating 2-dimensional tabular data structures

ClickHouse - ClickHouse® is a real-time analytics database management system

modin - Modin: Scale your Pandas workflows by changing a single line of code

DuckDB - DuckDB is an analytical in-process SQL database management system

DataFrames.jl - In-memory tabular data in Julia

databend - 𝗗𝗮𝘁𝗮, 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 & 𝗔𝗜. Modern alternative to Snowflake. Cost-effective and simple for massive-scale analytics. https://databend.com

vaex - Out-of-Core hybrid Apache Arrow/NumPy DataFrame for Python, ML, visualization and exploration of big tabular data at a billion rows per second 🚀

db-benchmark - reproducible benchmark of database-like ops

Apache Arrow - Apache Arrow is the universal columnar format and multi-language toolbox for fast data interchange and in-memory analytics

arrow2 - Transmute-free Rust library to work with the Arrow format

PyO3 - Rust bindings for the Python interpreter

fluvio - Lean and mean distributed stream processing system written in rust and web assembly. Alternative to Kafka + Flink in one.

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