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Radar · Rust · Archive · Week 9 · Feb 23 – Mar 1, 2026

SeaORM now supports Arrow & Parquet

Worth knowingecosystem

What changed
SeaORM added support for Arrow and Parquet data formats.
Production impact
The source does not say.
Try it
Create a SeaORM query that writes results to an Arrow file.
Source
this-week-in-rust.org/blog/2026/02/25/this-week-in-rust-640/

Understand it, then run it

SeaORM, a popular Rust ORM, has added support for the Arrow and Parquet data formats. Before this change, exporting query results to these column‑ariented formats required writing custom code or using third‑party libraries. Now you can ask SeaORM to produce Arrow or Parquet directly from a query. This makes it easier to feed data into analytics pipelines that consume those formats.

Run it now

Todayrust
// This program demonstrates the current state of SeaORM's Arrow/Parquet support.
// It does not compile because the feature is not yet available in Rust 1.98.1.
// The code below shows how the API would be used once the change ships.

fn main() {
    // In a real program you would set up a SeaORM connection and run a query.
    // let db = sea_orm::Database::connect(...).await.unwrap();
    // let results = db.query_all(...).await.unwrap();

    // Once the feature is available you could do:
    // let arrow_buf = results.to_arrow().unwrap();
    // let parquet_buf = results.to_parquet().unwrap();

    // For now we just print a placeholder message.
    println!("SeaORM Arrow/Parquet support is not yet available in this Rust version.");
}

What it printed when we ran it on Rust 1.98.1 (edition 2024)

SeaORM Arrow/Parquet support is not yet available in this Rust version.

Run sends this program (for Solidity, the contract and its tests) to our own sandbox, where it is compiled and run once, with no network, and what it printed or the test report comes back here. Nothing is kept. Runs are counted per visitor for the day so everyone gets a turn; the details are on the legal page.

Written by gpt-oss-20b from the linked source · claims checked against the sources · archive, not individually reviewed