Issues

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

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

• Float zone-map sum does not skip NaN, unlike Rust (skip_nans)

  bug
  dfa1/vortex-java#523 · Filter by author dfa1 opened on Oct 10, 2026

• Pco: 16-bit delta encoding is 13x larger than Rust on a ramp of half-precision bit patterns

  bug
  dfa1/vortex-java#520 · Filter by author dfa1 opened on Oct 10, 2026

• Forced vortex.sparse on all-equal data writes zero patches, which Rust rejects

  bug
  dfa1/vortex-java#519 · Filter by author dfa1 opened on Oct 10, 2026

• Zone-map pruning compares floats by total order: eq(0.0) drops a chunk of -0.0

  bug
  dfa1/vortex-java#518 · Filter by author dfa1 opened on Oct 10, 2026

• Move minMax, widen, allEqual loops into SimdOperations

  dfa1/vortex-java#516 · Filter by author dfa1 opened on Oct 10, 2026
  3

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

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

• 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

• Jazzer fuzz testing, remaining scope

  security
  dfa1/vortex-java#493 · 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
  3

• Telemetry data

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