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Remove redundant zero-initialization in Arrow IPC reader hot paths

Status: Open.

#9777 In apache/arrow-rs;

· pchintar opened on Apr 21, 2026

Avoid quadratic Dictionary Delta accumulation in IPC reader by deferring materialization

Status: Open.

#9775 In apache/arrow-rs;

· pchintar opened on Apr 20, 2026

Expose ColumnCloseResult on ArrowColumnChunk

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

Status: Open.

#9774 In apache/arrow-rs;

· leoyvens opened on Apr 20, 2026

Expose FFI data structures fields

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

Status: Open.

#9771 In apache/arrow-rs;

· ashdnazg opened on Apr 20, 2026

short-circuit last predicate in RowFilter when with_limit(N) is set

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

Status: Open.

#9765 In apache/arrow-rs;

· haohuaijin opened on Apr 19, 2026

parquet/arrow: should sync/async readers converge on a shared physical read planner

Status: Open.

#9764 In apache/arrow-rs;

· lyang24 opened on Apr 19, 2026

Remove per-message flush overhead in Arrow IPC writer

Status: Open.

#9762 In apache/arrow-rs;

· pchintar opened on Apr 18, 2026

Parquet- thoughts on adding Ribbon filters as a bloom alternative?

Status: Open.

#9761 In apache/arrow-rs;

· lyang24 opened on Apr 18, 2026

Add deferred materialization for oversized coalesced takes in BatchCoalescer

Status: Open.

#9760 In apache/arrow-rs;

· ClSlaid opened on Apr 18, 2026

Incorrect accounting in Interner::estimated_memory_size

bug

Status: Open.

#9744 In apache/arrow-rs;

· mzabaluev opened on Apr 16, 2026

Fuzz testing for parquet errors vs panic

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

Status: Open.

#9742 In apache/arrow-rs;

· alamb opened on Apr 16, 2026

Parquet dictionary encoding fallback is sub-optimal, may violate writer parameters

Status: Open.

#9739 In apache/arrow-rs;

· mzabaluev opened on Apr 16, 2026