Pull requests: apache/arrow

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WIP: Draft PR to test wheels awaiting committer review Component: C++ Component: Python

#48882 opened Jan 16, 2026 by raulcd • Draft

GH-48869: [Doc] Add runs-on to Continuous Integration Sponsors on README awaiting merge Component: Documentation

#48881 opened Jan 16, 2026 by raulcd

GH-48850: [Doc][Dev] Clarify versions of clang-format/pre-commit/Ubuntu awaiting review Component: Documentation

#48879 opened Jan 16, 2026 by shashbha14

GH-48877: [C++][Parquet] Fix writer not to throw for bloom filter on disabled bool column awaiting committer review Component: C++ Component: Parquet

#48878 opened Jan 16, 2026 by wgtmac

GH-48872: [C++][FlightRPC][CI][Packaging] Work-in-progress Upload ODBC to GitHub and Nightly Release awaiting committer review CI: Extra: C++

#48873 opened Jan 15, 2026 by alinaliBQ • Draft

GH-48868: [Doc] Document security model for the Arrow formats awaiting changes Component: Documentation

#48870 opened Jan 15, 2026 by pitrou • Draft

GH-48866: [C++][Gandiva] Truncate subseconds beyond milliseconds in castTIMESTAMP_utf8 and castTIME_utf8 awaiting review Component: C++ Component: Gandiva

#48867 opened Jan 15, 2026 by akravchukdremio

GH-48864: [C++] Support customizing more Zstd parameters awaiting committer review Component: C++ Component: Parquet

#48865 opened Jan 15, 2026 by HuaHuaY

GH-48560: [C++][Parquet] When fuzzing, treat Table validation error as hard error awaiting committer review Component: C++ Component: Parquet

#48863 opened Jan 15, 2026 by pitrou

GH-48858: [C++][Parquet] Avoid re-serializing footer for signature verification awaiting committer review Component: C++ Component: Parquet

#48859 opened Jan 14, 2026 by pitrou

GH-48832: [R] Fix crash with zero-length POSIXct tzone attribute awaiting review Component: Documentation Component: R

#48854 opened Jan 14, 2026 by shashbha14

Fix error with Boost::headers when building with Thrift awaiting review Component: C++

#48852 opened Jan 14, 2026 by RUSLoker

GH-48120: [C++][ODBC] Remove and replace IsComplexType with is_nested awaiting review CI: Extra: C++ Component: C++ Component: FlightRPC

#48847 opened Jan 13, 2026 by AestheticAkhmad

WIP: [Release] Verify release-23.0.0-rc2 awaiting committer review Component: C++ Component: Documentation Component: Gandiva Component: GLib Component: MATLAB Component: Parquet Component: Python Component: R Component: Ruby

#48843 opened Jan 13, 2026 by raulcd

Update dplyr-funcs-doc.R to fix a typo awaiting review Component: R

#48840 opened Jan 13, 2026 by Moohan

GH-48837: [C++] Remove invalid DCHECK when allow_delayed_open is true awaiting review Component: C++

#48836 opened Jan 13, 2026 by jiaqizho

WIP: Dummy PR to check maint-23.0.0 status awaiting committer review CI: Extra Component: Documentation

#48829 opened Jan 12, 2026 by raulcd

EXP: [C++] Bump mimalloc to 3.2.6 awaiting review CI: Extra: C++ CI: Extra: Package: Linux Component: C++

#48826 opened Jan 12, 2026 by pitrou • Draft

GH-47173: [C++] Implement JSON writer awaiting review Component: C++ Component: Documentation

#48812 opened Jan 10, 2026 by stenlarsson

GH-48802: [C++] Replace redundant nullptr assignment to DCHECK_EQ in FixedSizeBinary to String/Binary cast awaiting review Component: C++

#48803 opened Jan 9, 2026 by HyukjinKwon

GH-35830: [C++] Fix fixed-size list scalar hashing with non-zero offsets awaiting review Component: C++ Component: Python

#48798 opened Jan 9, 2026 by HyukjinKwon

GH-48761: [C++] Fix duplicate Substrait function URI registration awaiting review Component: C++

#48792 opened Jan 8, 2026 by mohit7705

MINOR: [Docs][C++] Clarify ARROW_TEST_DATA requirement for tests awaiting merge Component: Documentation

#48789 opened Jan 8, 2026 by meher745

GH-48788: [C++] Fix Windows mmap error code mapping in mman.h awaiting changes Component: C++

#48788 opened Jan 8, 2026 by Manas103

@Manas103

GH-33459: [C++][Python] Support step >= 1 in list_slice kernel awaiting committer review Component: C++ Component: Python

#48769 opened Jan 7, 2026 by HyukjinKwon

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