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perf: Reuse page buffers across data pages in column writer

parquetChanges to the parquet crateChanges to the parquet crate

Status: Open (in progress).

apache/arrow-rsnumber 9521

#9521 In apache/arrow-rs;

· asuresh8 opened on Mar 6, 2026

perf: DictionaryArray passthrough optimization for Parquet writer

parquetChanges to the parquet crateChanges to the parquet crate

Status: Open (in progress).

apache/arrow-rsnumber 9520

#9520 In apache/arrow-rs;

· asuresh8 opened on Mar 6, 2026

Fix Invalid offset in sparse column chunk data error for multiple predicates

parquetChanges to the parquet crateChanges to the parquet crate

Status: Open (in progress).

apache/arrow-rsnumber 9509

#9509 In apache/arrow-rs;

· cetra3 opened on Mar 5, 2026

[Parquet] Split byte-array batches transparently when i32 offset would overflow

parquetChanges to the parquet crateChanges to the parquet crate

Status: Open (in progress).

apache/arrow-rsnumber 9504

#9504 In apache/arrow-rs;

· vigneshsiva11 opened on Mar 4, 2026

Add some benchmarks for decoding delta encoded Parquet

parquetChanges to the parquet crateChanges to the parquet crate

Status: Open (in progress).

apache/arrow-rsnumber 9500

#9500 In apache/arrow-rs;

· etseidl opened on Mar 2, 2026

fix: Do not assume missing nullcount stat means zero nullcount

parquetChanges to the parquet crateChanges to the parquet crate

Status: Open (in progress).

apache/arrow-rsnumber 9481

#9481 In apache/arrow-rs;

· scovich opened on Feb 25, 2026

Optimize delta binary decoder in the case where bitwidth=0

parquetChanges to the parquet crateChanges to the parquet crate

Status: Draft (not ready).

apache/arrow-rsnumber 9477

#9477 In apache/arrow-rs;

· etseidl opened on Feb 25, 2026

Introduce public function <code>id()</code> on <code>Field</code>

arrowChanges to the arrow crateChanges to the arrow crate

parquetChanges to the parquet crateChanges to the parquet crate

Status: Open (in progress).

apache/arrow-rsnumber 9470

#9470 In apache/arrow-rs;

· Fokko opened on Feb 23, 2026

parquet: decoder-level dictionary filter pushdown for Parquet reader

parquetChanges to the parquet crateChanges to the parquet crate

Status: Open (in progress).

apache/arrow-rsnumber 9464

#9464 In apache/arrow-rs;

· lyang24 opened on Feb 23, 2026

feat(parquet): add content defined chunking for arrow writer

parquetChanges to the parquet crateChanges to the parquet crate

Status: Open (in progress).

apache/arrow-rsnumber 9450

#9450 In apache/arrow-rs;

· kszucs opened on Feb 20, 2026

feat(parquet): stream-encode definition/repetition levels incrementally

parquetChanges to the parquet crateChanges to the parquet crate

Status: Open (in progress).

apache/arrow-rsnumber 9447

#9447 In apache/arrow-rs;

· HippoBaro opened on Feb 20, 2026

Filter pushdown selectivity threshold

parquetChanges to the parquet crateChanges to the parquet crate

Status: Open (in progress).

apache/arrow-rsnumber 9414

#9414 In apache/arrow-rs;

· Dandandan opened on Feb 14, 2026