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Apache Arrow Substrait deserialization reaches Unreachable() / std::abort() on a SimpleExtensionDeclaration with an unset mapping_type oneof

Status: Open.

#50231 In apache/arrow;

· OwenSanzas opened on Jun 19, 2026

Apache Arrow Substrait DeserializePlan fatal ARROW_CHECK abort on out-of-range decimal precision (Decimal128Type ctor via FromProtoImpl make_shared bypass)

Status: Open.

#50230 In apache/arrow;

· OwenSanzas opened on Jun 19, 2026

Out-of-bounds read in Apache Arrow C++ Feather V1 reader: feather::Reader::Open calls fbs::GetCTable with no flatbuffers::Verifier

Status: Open.

#50229 In apache/arrow;

· OwenSanzas opened on Jun 19, 2026

[Docs][Python][Parquet] Update parquet default version text in parquet.rst

Component: Documentation

Component: Parquet

Component: Python

Type: bug

Status: Open.

#50227 In apache/arrow;

· tadeja opened on Jun 19, 2026

[Ruby] Move merge implementation to ColumnContainable

Component: Ruby

Type: enhancement

Status: Open.

#50225 In apache/arrow;

· Reranko05 opened on Jun 19, 2026

[C++][Compute] Support string_view/binary_view keys in the hash-aggregate Grouper

Component: C++

Type: enhancement

Status: Open.

#50223 In apache/arrow;

· fangchenli opened on Jun 18, 2026

[C++] Compilation error xsimd/xsimd.hpp no such file or directory

Component: C++

Type: bug

Status: Open.

#50222 In apache/arrow;

· semen-nazarenko83 opened on Jun 18, 2026

[R] Test failure with dbplyr 2.6.0 - remote_con() path changed from x$src$con to x$con

Component: R

Status: Open.

#50219 In apache/arrow;

· thisisnic opened on Jun 18, 2026

[C++][FlightRPC] ODBC Linux job on cpp_extra fails due to missing sudo

Component: C++

Component: FlightRPC

Type: bug

Status: Open.

#50218 In apache/arrow;

· raulcd opened on Jun 18, 2026

[C++][Parquet] Rle-Bitpacked to Bitmap decoder

Component: C++

Component: Parquet

Type: enhancement

Status: Open.

#50216 In apache/arrow;

· AntoinePrv opened on Jun 18, 2026

[Ruby] Migrate to RDoc from YARD

Component: Ruby

Type: enhancement

Status: Open.

#50202 In apache/arrow;

· kou opened on Jun 17, 2026

[C++][Python] Add "hypot" compute kernel

Component: C++

Component: Python

Type: enhancement

Status: Open.

#50197 In apache/arrow;

· shrivasshankar opened on Jun 16, 2026