delta-io/delta-rs

A native Rust library for Delta Lake, with bindings into Python

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Summary Information

Updated 1 hour ago
Added to GitGenius on September 21st, 2026
Created on April 26th, 2020
Open Issues & Pull Requests: 136 (+0)
GitHub issues: Enabled
Number of forks: 677
Total Stargazers: 3,329 (+0)
Total Subscribers: 33 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 6.7 hours
Mean response time: 66.3 days
90th percentile: 192.9 days
Tracked items: 783

Maintainer activity

38 people did triage or write work on this repository in the last 12 months.

Counts unlabeled, assigned, unassigned, milestoned, demilestoned, locked, unlocked over the last 12 months. These are issue and pull request events that require triage or write permission. Commits and code review are not counted. labeled and renamed are excluded because GitHub issue forms record the issue author as the actor. Figures from October 7, 2026. This count is not comparable across projects: each project's automation decides which of these events a person emits.

How this project is maintained

About 7% of issues opened in the past year have never received a reply. 68% of open issues come from outside the core team, a mix of external reports and the maintainers' own roadmap. Work labelled "on-hold" is answered fastest, typically in under an hour, while "documentation" waits about 5 weeks. 36% of tracked open issues have had no activity in three months. 76% of issues opened in the past year have been closed, leaving a working backlog.

Charts & Analytics

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Issue Activity (beta)

Open issues: 107
New in 7 days: 1
Closed in 7 days: 11
Avg open age: 362 days
Stale 30+ days: 51
Stale 90+ days: 41

Recent activity

Opened in 7 days: 0
Closed in 7 days: 11
Comments in 7 days: 4
Events in 7 days: 15

Top labels

  • bug (317)
  • enhancement (246)
  • binding/rust (163)
  • binding/python (96)
  • help wanted (62)
  • good first issue (44)
  • documentation (18)
  • storage/aws (18)

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Detailed Description

Delta-rs is a native Rust library for reading and writing Delta Lake tables, with Python bindings for integration into data workflows.

Delta Lake is an open-source storage format that adds ACID transactions and schema enforcement to data lakes built on object storage. Delta-rs solves the problem of accessing Delta Lake tables from Rust and Python applications without requiring a JVM, offering a lightweight alternative to the Java-based Delta Lake implementation. The library handles table reads and writes, metadata operations, and schema management by implementing the Delta Lake protocol directly in Rust, then exposing this functionality through Python bindings for use in pandas-based workflows and other Python data tools.

Teams should adopt delta-rs when they need Delta Lake support in Rust applications or want to work with Delta tables in Python without JVM overhead. It suits projects that prioritize performance and minimal dependencies, particularly data pipelines, analytical applications, and systems where Java runtime constraints are problematic. The tool is especially valuable for teams already invested in the Rust ecosystem or those building polyglot data platforms that span Rust and Python.

The project maintains active development with regular commits addressing bug fixes, feature additions, and performance improvements. Work spans both the core Rust implementation and the Python binding layer, indicating sustained effort across multiple interfaces. The codebase shows responsiveness to user issues and pull requests, with maintainers engaged in discussions about feature requests and compatibility concerns. Development activity reflects a commitment to keeping the library current with Delta Lake protocol evolution and expanding its capabilities for both Rust and Python users.