Issues

• Importers return the WriteSummary of the file they write

  enhancement
  dfa1/vortex-java#728 · Filter by author dfa1 opened on Nov 10, 2026

• Nested struct columns are written as one flat array, not Rust's struct layout

  bug
  dfa1/vortex-java#724 · Filter by author dfa1 opened on Nov 10, 2026

• Nested columns are not repartitioned: one chunk per batch instead of Rust's ~1 MB chunks

  bug
  dfa1/vortex-java#723 · Filter by author dfa1 opened on Nov 10, 2026

• A string column whose first 8192 rows are constant gets a dict layout Rust does not write

  bug
  dfa1/vortex-java#722 · Filter by author dfa1 opened on Nov 10, 2026

• Parquet export fails on struct and list columns

  bug
  dfa1/vortex-java#721 · Filter by author dfa1 opened on Nov 9, 2026

• Decode the decimal scalar of a Rust-written flat node's min/max stats

  enhancement
  dfa1/vortex-java#710 · Filter by author dfa1 opened on Nov 8, 2026

• Zone table of a column whose few bounds Rust's trained FSST table compresses

  enhancement
  dfa1/vortex-java#709 · Filter by author dfa1 opened on Nov 8, 2026

• Cross-check the child stats of string columns against vortex-jni

  enhancement
  dfa1/vortex-java#708 · Filter by author dfa1 opened on Nov 8, 2026

• Canonical Decimal encoding

  dfa1/vortex-java#662 · Filter by author dfa1 opened on Nov 5, 2026
  1

• feat(writer): write vortex.union (declared in Rust's unstable2026.10.0 edition)

  enhancement
  dfa1/vortex-java#660 · Filter by author dfa1 opened on Nov 4, 2026

• feat(jdbc): JdbcExporter, matching the CSV and Parquet exporters

  enhancement
  dfa1/vortex-java#567 · Filter by author dfa1 opened on Oct 18, 2026

• Editions: gate extension dtypes and support crate-declared families (json)

  enhancement
  dfa1/vortex-java#548 · Filter by author dfa1 opened on Oct 17, 2026

• OnPair trainer should draw Rust's sample (StdRng + partial_shuffle) for byte-identical dictionaries

  enhancementPARKED
  dfa1/vortex-java#534 · Filter by author dfa1 opened on Oct 13, 2026

• New module mapper: read and write Java records as typed rows

  enhancementhelp wantedPARKED
  dfa1/vortex-java#528 · Filter by author dfa1 opened on Oct 11, 2026
  1

• Reader: concurrent scan with a confined arena per worker thread

  enhancementperf
  dfa1/vortex-java#505 · Filter by author dfa1 opened on Oct 9, 2026
  1

• Domain primitives (unsigned integers via Valhalla)

  enhancement
  dfa1/vortex-java#496 · Filter by author dfa1 opened on Oct 9, 2026

• VortexException message sanitization

  security
  dfa1/vortex-java#495 · Filter by author dfa1 opened on Oct 9, 2026

• vortex-arrow bridge module

  enhancement
  dfa1/vortex-java#494 · Filter by author dfa1 opened on Oct 9, 2026

• Implement ResourceLimits + ReadOptions

  security
  dfa1/vortex-java#492 · Filter by author dfa1 opened on Oct 9, 2026

• Benchmark publishing: reproducible, peer-reviewed, multi-machine

  perf
  dfa1/vortex-java#489 · Filter by author dfa1 opened on Oct 9, 2026

• Create a project website

  help wantedproject
  dfa1/vortex-java#488 · Filter by author dfa1 opened on Oct 9, 2026
  3

• Move project to a dedicated GitHub organization

  help wantedproject
  dfa1/vortex-java#487 · Filter by author dfa1 opened on Oct 9, 2026

• perf(writer, core): optional Vector API candidates on the write path and in shared helpers

  dfa1/vortex-java#484 · Filter by author dfa1 opened on Oct 9, 2026
  2

• perf(reader): SIMD kernels mirroring Rust: C2-shaped scalar loops, opt-in Vector API for filter compress/bitmap/small-table take

  dfa1/vortex-java#483 · Filter by author dfa1 opened on Oct 9, 2026
  4

• Telemetry data

  enhancementhelp wanted
  dfa1/vortex-java#462 · Filter by author dfa1 opened on Oct 7, 2026