apache/datafusion-java

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Java bindings for Apache DataFusion

Stars: 32
Forks: 12
Open beginner issues: 0
Indexed issues: 10

Dominant language: Java
License: Apache-2.0
Last GitHub push: Aug 6, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

Open All

Support pluggable AWS credentials for the S3 object store (credentials provider callback) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

apache/datafusion-java#116 · Opened Aug 26, 2026
Spark DataSource backed by a DataFusion TableProvider over ADBC Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

apache/datafusion-java#112 · Opened Jun 30, 2026
feat(dataframe): expose the executed physical plan with per-operator metrics Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 42/100

apache/datafusion-java#96 · Opened May 26, 2026
feat(table): expose `registerStreamingTable` for push-mode batch ingest Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 38/100

apache/datafusion-java#95 · Opened May 26, 2026
Create first release Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/datafusion-java#86 · 3 comments · Opened May 25, 2026
feat: query cancellation via `CancellationToken` on `SessionContext` Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 45/100

apache/datafusion-java#68 · Opened May 19, 2026
Propagate Java stack traces from JVM upcalls into DataFusionError Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

apache/datafusion-java#55 · Opened May 17, 2026
bug: SessionContext.close() / DataFrame.close() race with concurrent JNI calls (use-after-free) Open

bug

apache/datafusion-java#40 · 1 comment · 1 assignee · Opened May 13, 2026
Publish fat JAR with platform-specific native libraries to Maven Central Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

apache/datafusion-java#33 · 2 comments · Opened May 13, 2026
Decide on sync vs async DataFrame methods Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

apache/datafusion-java#25 · 2 comments · Opened May 13, 2026

apache/datafusion-java

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