vortex-data/vortex

An extensible, state-of-the-art framework for columnar compression, and the fastest FOSS columnar file format. Formerly at @spiraldb, now an Incubation...

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Summary Information

Updated 2 hours ago
Added to GitGenius on September 21st, 2026
Created on February 27th, 2024
Open Issues & Pull Requests: 333 (+4)
GitHub issues: Enabled
Number of forks: 226
Total Stargazers: 3,222 (+0)
Total Subscribers: 20 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 19.3 hours
Mean response time: 40.6 days
90th percentile: 139.4 days
Tracked items: 1,020

How this project is maintained

About 12% of issues opened in the past year have never received a reply. 83% of open issues come from outside the core team, so the backlog reflects real-world use rather than internal planning. Work labelled "tracking-issue" is answered fastest, typically in under an hour, while "fuzzer" waits about 2 days. 46% of tracked open issues have had no activity in three months. 75% of issues opened in the past year have been closed, leaving a working backlog.

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Issue Activity (beta)

Open issues: 214
New in 7 days: 3
Closed in 7 days: 2
Avg open age: 241 days
Stale 30+ days: 182
Stale 90+ days: 124

Recent activity

Opened in 7 days: 2
Closed in 7 days: 1
Comments in 7 days: 0
Events in 7 days: 1

Top labels

  • bug (207)
  • fuzzer (130)
  • ext/duckdb (58)
  • feature (49)
  • epic (41)
  • tracking-issue (41)
  • good first issue (31)
  • help wanted (12)

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Detailed Description

Vortex is a columnar file format and compression framework that provides high-performance data processing with extensible encoding strategies.

Vortex addresses the performance limitations of existing columnar formats by implementing a next-generation architecture optimized for object storage systems. The tool separates logical schema concerns from physical storage implementation, allowing pluggable encoding systems, compression strategies, and layout strategies. This design enables zero-copy compatibility with Apache Arrow while supporting cascading compression through nested encoding schemes. The framework includes built-in optimizations like lazy-loaded statistics and high-performance compute kernels that operate directly on encoded data.

Vortex suits projects requiring extreme performance on columnar workloads, particularly those using object storage backends. It is especially valuable for systems handling wide tables where metadata efficiency matters, and for applications needing random access performance significantly faster than conventional formats. The tool integrates with Arrow, DataFusion, DuckDB, Spark, Pandas, and Polars, making it compatible with existing data ecosystems. Developers should note that while library APIs may change between versions, the file format is stable from version 0.36.0 onward, with backwards compatibility guaranteed for future releases. The project is governed by the Linux Foundation under the Apache-2.0 license.

Development activity shows consistent engagement with the codebase through regular updates and maintenance. The project maintains active documentation and provides benchmarking infrastructure for performance validation. Community collaboration is facilitated through documented channels including Slack and email contact for closer partnership opportunities.