Issues

• Parquet: choose dictionary encoding per column the way parquet-java does

  enhancementparquet
  apache/arrow-rs#11384 · Filter by author andygrove opened on Oct 5, 2026

• Update format files

  enhancement
  Feature

  apache/arrow-rs#11383 · Filter by author Jefffrey opened on Oct 5, 2026

• Specialize Boolean interleave for scattered selections

  apache/arrow-rs#11379 · Filter by author sunchao opened on Oct 4, 2026

• Workflow for using labels as a review queue

  enhancement
  Feature

  apache/arrow-rs#11373 · Filter by author Jefffrey opened on Oct 4, 2026
  

• Make labels more broad

  enhancement
  Feature

  apache/arrow-rs#11372 · Filter by author Jefffrey opened on Oct 4, 2026
  1

  

• Add fixed and variable closedness range canonical extension types

  apache/arrow-rs#11370 · Filter by author Hoeze opened on Oct 4, 2026

• Release arrow-rs / parquet Patch version 59.3.1 (October 2026)

  apache/arrow-rs#11352 · Filter by author Jefffrey opened on Oct 3, 2026
  1

  

• Support configurable decimal separator in CSV reader

  enhancement
  Feature

  apache/arrow-rs#11350 · Filter by author Djjanks opened on Oct 3, 2026

• fix untake github action for arrow-rs

  apache/arrow-rs#11347 · Filter by author Rich-T-kid opened on Oct 3, 2026
  7

  

• Support per-column data page row count limits in Parquet writer

  enhancement
  Feature

  apache/arrow-rs#11339 · Filter by author haohuaijin opened on Oct 2, 2026
  2

  

• Simplify CI merge queue logic

  development-processenhancement
  Feature

  apache/arrow-rs#11331 · Filter by author Jefffrey opened on Oct 2, 2026

• Make cloning ParquetMetaData less expensive

  enhancement
  Feature

  apache/arrow-rs#11328 · Filter by author etseidl opened on Oct 1, 2026

• i256::to_f32 double-rounds through f64

  apache/arrow-rs#11316 · Filter by author miguelcorderopamphile opened on Oct 1, 2026
  1

• i256::to_f64 rounds an integer just above a midpoint to the farther float

  bug
  Bug

  apache/arrow-rs#11314 · Filter by author gatesn opened on Sep 30, 2026
  1

• Reduce parquet crates.io owners to Arrow PMC members

  enhancement
  Feature

  apache/arrow-rs#11312 · Filter by author alamb opened on Sep 30, 2026

• variant_get converts integers to decimals without consistently checking target precision

  bug
  apache/arrow-rs#11309 · Filter by author sdf-jkl opened on Sep 30, 2026
  1

  

• Support configurable rounding for decimal conversions

  enhancement
  apache/arrow-rs#11308 · Filter by author sdf-jkl opened on Sep 30, 2026
  1

  

• parquet: dictionary page decode copies and validates the whole dictionary even when few values are referenced

  apache/arrow-rs#11303 · Filter by author zhuqi-lucas opened on Sep 30, 2026

• [Variant] Casting shredded input to structs bypasses parent null and type checks

  apache/arrow-rs#11301 · Filter by author sdf-jkl opened on Sep 29, 2026

• null_if_overflow_precision resets decimal precision and scale, changing valid values

  apache/arrow-rs#11300 · Filter by author sdf-jkl opened on Sep 29, 2026

• Union nullability fixes

  bug
  Bug

  apache/arrow-rs#11284 · Filter by author Jefffrey opened on Sep 29, 2026

• Parquet: writer can silently lose REE nulls and emit inconsistent Arrow schema metadata

  bug
  Bug

  apache/arrow-rs#11277 · Filter by author HippoBaro opened on Sep 29, 2026

• Avoid repeated Parquet page-index range discovery

  apache/arrow-rs#11275 · Filter by author sunchao opened on Sep 29, 2026

• Parquet: Dictionary<K, FixedSizeBinary> writes BYTE_ARRAY payloads for FIXED_LEN_BYTE_ARRAY columns

  bug
  Bug

  apache/arrow-rs#11261 · Filter by author HippoBaro opened on Sep 28, 2026

• [Variant] Expose a row decoder for custom unshredding output

  apache/arrow-rs#11260 · Filter by author peterxcli opened on Sep 28, 2026