# Apache DataFusion: AI-friendly with conditions

> AI-assisted PRs are welcome from anyone, but not unreviewed "AI dumps". Authors must read the whole PR, understand the core ideas, flag parts they do not fully understand and follow the ASF licensing guidance. Replies to reviewers must be in the contributor's own words, though AI may help understand or translate.

- What it is: An extensible query engine written in Rust that uses Apache Arrow. (Library)
- Homepage: https://datafusion.apache.org/
- Repository: https://github.com/apache/datafusion
- Overall stance: AI-friendly with conditions (Mostly friendly). AI-assisted contributions are accepted with extra rules, such as disclosing AI use, or AI is banned for issues or written text.
- Last classified: 2026-10-09 (manual review, high confidence)
- Policy last changed: 2026-10-09
- Web page: https://areweaifriendly.com/projects/apache-datafusion/

## Policy by area

- **Code contributions**: AI-friendly (Contributor takes full responsibility; A human must review the output; Output must be license-compatible)
- **Issues & bug reports**: No AI policy
- **AI-written text**: Not AI-friendly (Only minor help (autocomplete, grammar))

## In their own words

- Code contributions: "We welcome AI-assisted PRs from anyone. We do not welcome unreviewed “AI dumps” (defined below)." (https://datafusion.apache.org/contributor-guide/ai-policy.html)
- Code contributions: "The PR author should have personally read the entire PR they submit and understand the core ideas end-to-end." (https://datafusion.apache.org/contributor-guide/ai-policy.html)
- Code contributions: "Among other things, the author must ensure the PR does not include undisclosed third-party code or copyrighted material." (https://datafusion.apache.org/contributor-guide/ai-policy.html)
- AI-written text: "We expect your responses to be in your own words, though it is fine to use AI to help prepare your response (for example to understand the comment, or help translate your response to English)." (https://datafusion.apache.org/contributor-guide/ai-policy.html)

## Sources

- [Apache DataFusion AI Policy](https://datafusion.apache.org/contributor-guide/ai-policy.html), fetched 2026-10-09