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Support nested REE in arrow-ord partition function

Status: Open.

#9640 In apache/arrow-rs;

· liamzwbao opened on Apr 1, 2026

[Parquet] ArrowWriter with CDC panics on nested ListArrays

bug

Status: Open.

#9637 In apache/arrow-rs;

· alamb opened on Mar 31, 2026

[Parquet] Remove the BIT_PACKED encoder

Status: Open.

#9635 In apache/arrow-rs;

· alamb opened on Mar 31, 2026

[Variant] Consider consolidating struct builders between variant_get and shred_variant

Status: Open.

#9633 In apache/arrow-rs;

· liamzwbao opened on Mar 31, 2026

List and ListView are missing take benchmarks

Status: Open.

#9627 In apache/arrow-rs;

· AdamGS opened on Mar 30, 2026

Support RunEndEncoded arrays in comparison kernels (eq, lt, etc.)

Status: Open.

#9620 In apache/arrow-rs;

· asubiotto opened on Mar 27, 2026

[Variant] variant_get(..., List<_>) non-Struct types support

enhancementAny new improvement worthy of a entry in the changelogAny new improvement worthy of a entry in the changelog

Status: Open.

#9615 In apache/arrow-rs;

· sdf-jkl opened on Mar 24, 2026

Fast non-validating reader mode to count records in Avro OCF files

enhancementAny new improvement worthy of a entry in the changelogAny new improvement worthy of a entry in the changelog

Status: Open.

#9613 In apache/arrow-rs;

· mzabaluev opened on Mar 24, 2026

[Parquet] How to decode part columns of ColumnIndex

parquetChanges to the parquet crateChanges to the parquet crate

questionFurther information is requestedFurther information is requested

Status: Open.

#9609 In apache/arrow-rs;

· mapleFU opened on Mar 24, 2026

Avro decoder can't handle a reader schema with no fields

bug

Status: Open.

#9608 In apache/arrow-rs;

· mzabaluev opened on Mar 24, 2026

variant_get should follow JSONpath semantics

Status: Open.

#9606 In apache/arrow-rs;

· scovich opened on Mar 23, 2026

How to handle delta dictionaries and finish_preserve_values with nested builders

questionFurther information is requestedFurther information is requested

Status: Open.

#9600 In apache/arrow-rs;

· adamreichold opened on Mar 22, 2026