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• 2026/02/04 [I] parquet does not retain haven::tagged_na() [arrow] via GitHub
• 2026/02/04 [I] [C++] Add option to disable atfork handlers [arrow] via GitHub
• 2026/02/04 Re: [I] [R] How should we suggest to folks to get our libarrow builds? [arrow] via GitHub
• 2026/02/04 [I] [R][CI] Get rid of unused CentOS CI job [arrow] via GitHub
• 2026/02/04 Re: [I] [R] Linux arm64 binary hosting [arrow] via GitHub
• 2026/02/04 Re: [I] [C++] Add test for null-type dictionary sorting and clarify XXX comment [arrow] via GitHub
• 2026/02/04 [I] [R] Bindings for new dplyr verbs [arrow] via GitHub
• 2026/02/04 Re: [I] [Python] Expose JSON schema inference to Python API [arrow] via GitHub
• 2026/02/04 Re: [I] [Python] Pre-generate pyarrow.compute members [arrow] via GitHub
• 2026/02/04 Re: [I] [C++] Add support for Future<MoveOnlyDataType> [arrow] via GitHub
• 2026/02/04 Re: [I] [Website] Write blog post describing new Rust dev processes [arrow] via GitHub
• 2026/02/04 Re: [I] [C++] Configurable read-ahead in CSV and JSON readers [arrow] via GitHub
• 2026/02/04 Re: [I] [C++] Add compute kernel for extract keys / items from Map type data [arrow] via GitHub
• 2026/02/04 Re: [I] [C++] Enable metadata writing in the ORCWriter [arrow] via GitHub
• 2026/02/04 [I] [Packaging][Python] PyArrow fails building with nightlies Cython [arrow] via GitHub
• 2026/02/04 [I] [CI][Release] macOS conda source verification jobs fail to build Arrow C++ [arrow] via GitHub
• 2026/02/03 [I] [CI][Crossbow] Use apache/arrow instead of separated repository (e.g. ursacomputing/crossbow) [arrow] via GitHub
• 2026/02/03 Re: [I] [CI][Crossbow] Use apache/arrow instead of separated repository (e.g. ursacomputing/crossbow) [arrow] via GitHub
• 2026/02/03 [I] Decode dictionary-encoded arrays in IPC decoder [arrow-nanoarrow] via GitHub
• 2026/02/03 [I] Track dictionary IDs when decoding IPC schema [arrow-nanoarrow] via GitHub
• 2026/02/03 Re: [I] TypesScript type error in ts/builder/map.ts causes TypeScript compilation to fail [arrow-js] via GitHub
• 2026/02/03 [I] [C++] Optimize SmallVector move assignment for static storage [arrow] via GitHub
• 2026/02/03 Re: [I] [CI][Packaging][Python] Nightly wheels fail due to utf8proc::utf8proc not being found [arrow] via GitHub
• 2026/02/03 [I] format: standardize OTel options, consider options for logging [arrow-adbc] via GitHub
• 2026/02/03 Re: [I] [C++] Generate proper UTF-8 strings in JSON test utilities [arrow] via GitHub
• 2026/02/03 Re: [I] [Python] CSV reader returns different values in 23.0.0 [arrow] via GitHub
• 2026/02/03 Re: [I] [C++] Result::Map should allow a callable that returns a Status [arrow] via GitHub
• 2026/02/03 [I] [R] Compilation fails when Parquet support is disabled [arrow] via GitHub
• 2026/02/03 Re: [I] [Python] Not able to import pyarrow.parquet [arrow] via GitHub
• 2026/02/03 Re: [I] [Parquet][C++] Support arrow dense union type in Parquet [arrow] via GitHub
• 2026/02/03 Re: [I] [C++] More fine-grained control of file creation in filesystem layer [arrow] via GitHub
• 2026/02/03 Re: [I] [C++] [Dataset] Remove buffering from AsyncScanner [arrow] via GitHub
• 2026/02/03 Re: [I] Implement castVARCHAR function for milliseconds input [arrow] via GitHub
• 2026/02/03 Re: [I] [C++] Remove SyncScanner [arrow] via GitHub
• 2026/02/03 Re: [I] [C++] Support LZO compression [arrow] via GitHub
• 2026/02/03 Re: [I] [C++] Allow batch readahead to be processed in a "first-available" fashion instead of an "in order" fashion [arrow] via GitHub
• 2026/02/03 Re: [I] [Ruby] Add support for writing map array [arrow] via GitHub
• 2026/02/03 Re: [I] [Ruby] Add support for writing union arrays [arrow] via GitHub
• 2026/02/03 Re: [I] [CI][Python] Nigthly dask tests are failing due to type and conversion differences [arrow] via GitHub
• 2026/02/02 [I] [C++] Complete std::numeric_limits<Float16> specialization [arrow] via GitHub
• 2026/02/02 [I] A few starter generic compute kernels [arrow-dotnet] via GitHub
• 2026/02/02 Re: [I] CData's `ImportFixedWidthBuffers` method has signed arithmetic overflow failure during array length calculation when importing a large list with a large fixed width type. [arrow-dotnet] via GitHub
• 2026/02/02 [I] [Ruby] Add support for writing map array [arrow] via GitHub
• 2026/02/02 [I] [Ruby] Add support for writing union arrays [arrow] via GitHub
• 2026/02/02 Re: [I] [Python] SparseCOOTensor.__repr__ missing f-string prefix [arrow] via GitHub
• 2026/02/02 Re: [I] [Benchmarking][Dev] Possibly unused asv configuration files [arrow] via GitHub
• 2026/02/02 Re: [I] [C++] Update xsimd version [arrow] via GitHub
• 2026/02/02 Re: [I] [Packaging][deb] libarrow-cuda-glib-doc is missing [arrow] via GitHub
• 2026/02/02 Re: [I] [Ruby] Add support for writing duration array [arrow] via GitHub
• 2026/02/02 Re: [I] [Ruby] Add support for writing struct array [arrow] via GitHub
• 2026/02/02 Re: [I] [C++][Python][R][Dataset] Control overwriting vs appending when writing to existing dataset [arrow] via GitHub
• 2026/02/02 Re: [I] [Dev] Unify source code formatting of Archery [arrow] via GitHub
• 2026/02/02 Re: [I] [C++] Get rid of Result<AsyncGenerator<...>> [arrow] via GitHub
• 2026/02/02 Re: [I] [C++][Dataset] Scanner::TakeRows should push down the query if possible [arrow] via GitHub
• 2026/02/02 Re: [I] [MATLAB] Add examples/ directory to demonstrate workflows [arrow] via GitHub
• 2026/02/02 Re: [I] [MATLAB] Add code architecture diagrams [arrow] via GitHub
• 2026/02/02 Re: [I] [R] Work around masking of data type functions [arrow] via GitHub
• 2026/02/02 [I] [CI][Packaging][Python] Nightly wheels fail due to utf8proc::utf8proc not being found [arrow] via GitHub
• 2026/02/02 [I] [C++][Parquet] Failed to read three-level encoding old list structure [arrow] via GitHub
• 2026/02/01 [I] [C++] Support half-float tensors in equality comparison [arrow] via GitHub
• 2026/02/01 [I] [C++] Add bounds checking to DataType::field() to return nullptr for out-of-bounds access [arrow] via GitHub
• 2026/02/01 [I] CData's `ImportFixedWidthBuffers` method has signed arithmetic overflow failure during array length calculation when importing a large list with a large fixed width type. [arrow-dotnet] via GitHub
• 2026/02/01 Re: [I] [Python][R] Expose (hide?) ScanOptions [arrow] via GitHub
• 2026/02/01 Re: [I] [C++] Add automatic detection of "abandoned" futures [arrow] via GitHub
• 2026/02/01 Re: [I] [C++] Create a better mechanism for async state management [arrow] via GitHub
• 2026/02/01 Re: [I] [C++][Compute] Use generic hash-aggregate for DictionaryArrays [arrow] via GitHub
• 2026/02/01 Re: [I] [C++] Datasets/Fragment/ScanOptions should be immutable [arrow] via GitHub
• 2026/02/01 Re: [I] [C++/Python/Packaging] Move conda aarch64 builds to Azure Pipelines [arrow] via GitHub
• 2026/02/01 Re: [I] [Archery][Integration] Support round trip tests for compression [arrow] via GitHub
• 2026/02/01 Re: [I] [C++][Gandiva] Implement new cache for Gandiva focused on a build time policy [arrow] via GitHub
• 2026/02/01 [I] [Python] SparseCOOTensor.__repr__ missing f-string prefix [arrow] via GitHub
• 2026/01/31 [I] Doc update in aggregate_basic for first-last [arrow] via GitHub
• 2026/01/31 [I] [C++] Segfault in SparseCSFIndex::Equals with mismatched dimensions [arrow] via GitHub
• 2026/01/31 [I] [Python] Add internal type system stubs (_types, error, _stubs_typing) [arrow] via GitHub
• 2026/01/31 [I] [CI] Add type checking infrastructure and CI workflow for type annotations [arrow] via GitHub
• 2026/01/31 Re: [I] [Docs] Broken link to Swift page in implementations.rst [arrow] via GitHub
• 2026/01/31 Re: [I] TimestampTZ functions [arrow] via GitHub
• 2026/01/31 Re: [I] [C++] Allow AddCallback/Then to take in an optional Executor. [arrow] via GitHub
• 2026/01/31 Re: [I] [C++] Investigate moving away from std::function in AsyncGenerator [arrow] via GitHub
• 2026/01/31 Re: [I] [C++][Gandiva] Implement TO_TIME, TO_TIMESTAMP, UNIX_TIMESTAMP and IS_DATE functions [arrow] via GitHub
• 2026/01/31 Re: [I] [R] New/improved vignette on dplyr features [arrow] via GitHub
• 2026/01/31 Re: [I] [Python][Gandiva] Infer return types for make_if and make_in_expression [arrow] via GitHub
• 2026/01/31 Re: [I] [C++][Compute] Add remainder and quotient compute::Function [arrow] via GitHub
• 2026/01/31 [I] [Docs] Broken link to Swift page in implementations.rst [arrow] via GitHub
• 2026/01/31 [I] [Packaging][deb] libarrow-cuda-glib-doc is missing [arrow] via GitHub
• 2026/01/31 Re: [I] [CI][Packaging][Gandiva] Some of our Linux packaging jobs fail compiling Gandiva [arrow] via GitHub
• 2026/01/30 [I] [Ruby] Add support for writing struct array [arrow] via GitHub
• 2026/01/30 [I] [Ruby] Add support for writing duration array [arrow] via GitHub
• 2026/01/30 Re: [I] [Ruby] Add support for writing list and large list arrays [arrow] via GitHub
• 2026/01/30 Re: [I] [Ruby] Add support for writing interval arrays [arrow] via GitHub
• 2026/01/30 Re: [I] [C++][CI] Upgrade the vcpkg baseline version to newer version [arrow] via GitHub
• 2026/01/30 [I] [C++][CI][FlightRPC][ODBC] Update file name of Nightly Upload for ODBC MSI [arrow] via GitHub
• 2026/01/30 [I] [C++] CMake Windows Install - Wrong Config File Locations [arrow] via GitHub
• 2026/01/30 [I] Please update OpenSSL [arrow] via GitHub
• 2026/01/30 Re: [I] Thread Safety Bug in DictionaryArray::dictionary() [arrow] via GitHub
• 2026/01/30 [I] [CI][Packaging][Gandiva] Some of our Linux packaging jobs fail compiling Gandiva [arrow] via GitHub
• 2026/01/30 Re: [I] [C++] Share Trie instances across CSV value decoders [arrow] via GitHub
• 2026/01/30 [I] [CI][Dev] Report for CPP extra shows ODBC nightly as failed [arrow] via GitHub
• 2026/01/30 Re: [I] [Python] Explode array column [arrow] via GitHub
• 2026/01/30 Re: [I] [Format] Consider adding int0 and other small integer types for more efficient Dictionary encoding [arrow] via GitHub
• 2026/01/30 Re: [I] [C++] Support string collation for sorting [arrow] via GitHub
• 2026/01/30 Re: [I] [C++][Compute] Add support for imperfect grouping for use in radix partitioning [arrow] via GitHub
• 2026/01/30 Re: [I] [Developer Tools] Update merge tool to populate component if not present based on PR title [arrow] via GitHub
• 2026/01/30 [I] [CI][Python] Nigthly dask tests are failing due to type and conversion differences [arrow] via GitHub
• 2026/01/30 [I] [C++][Parquet] Wrong variant extension name [arrow] via GitHub
• 2026/01/30 [I] [C++] Null pointer dereference in SimpleTable constructor [arrow] via GitHub
• 2026/01/30 [I] [Python][FS][Azure] Pickling `SubTreeFileSystem(base_path, AzureFileSystem(...))` is lossy [arrow] via GitHub
• 2026/01/30 Re: [I] compute.Take on Record/Array with nested struct field causes nil pointer dereference [arrow-go] via GitHub
• 2026/01/30 [I] [C++][CI] Upgrade the vcpkg baseline version to newer version [arrow] via GitHub
• 2026/01/30 Re: [I] [C++] Use COMPILE_OPTIONS instead of deprecated COMPILE_FLAGS [arrow] via GitHub
• 2026/01/30 Re: [I] [C++][Gandiva] binary_string can throw an error if input is null [arrow] via GitHub
• 2026/01/30 Re: [I] [C++][FS][Azure] `GetFileInfo` occasionally resports NOT_FOUND on directories that do exist [arrow] via GitHub
• 2026/01/30 Re: [I] [C++][Gandiva] Projector make is significantly slower after move to OrcJIT [arrow] via GitHub
• 2026/01/30 Re: [I] [C++] Remove unnecessary copies of shared_ptr in Type::BOOL and Type::NA at GrouperImpl [arrow] via GitHub
• 2026/01/30 [I] [Ruby] Add support for writing interval arrays [arrow] via GitHub
• 2026/01/30 Re: [I] [Doc][Python] The use of IPython directive or doctest code blocks in the python user guide [arrow] via GitHub
• 2026/01/29 [I] Remove the TODO asking to remove check_metadata in compare.cc [arrow] via GitHub
• 2026/01/29 [I] [Ruby] Add support for writing list and large list arrays [arrow] via GitHub
• 2026/01/29 [I] [C++] Share Trie instances across CSV value decoders [arrow] via GitHub
• 2026/01/29 [I] [R] Disable GCS on macos [arrow] via GitHub
• 2026/01/29 Re: [I] [Ruby] Add support for writing timestamp array [arrow] via GitHub
• 2026/01/29 Re: [I] [Ruby] Add support for writing decimal128/256 arrays [arrow] via GitHub
• 2026/01/29 [I] Remove unnecessary copies of shared_ptr in Type::BOOL and Type::NA at GrouperImpl [arrow] via GitHub
• 2026/01/29 [I] Thread Safety Bug in DictionaryArray::dictionary() [arrow] via GitHub
• 2026/01/29 Re: [I] Thread Pool Deadlock Detection Framework [arrow] via GitHub
• 2026/01/29 Re: [I] [C++] Fix issues found by OSS-Fuzz in IPC reader [arrow] via GitHub
• 2026/01/29 [I] Thread Pool Deadlock Detection Framework [arrow] via GitHub
• 2026/01/29 [I] [C++] Fix issues found by OSS-Fuzz in IPC reader [arrow] via GitHub
• 2026/01/29 Re: [I] [Python][Packaging] Missing license files in 23.0.0 wheels [arrow] via GitHub
• 2026/01/29 [I] [Python] Non-UTF-8 bytes should be disallowed in custom_metadata [arrow] via GitHub
• 2026/01/29 [I] [GLib] Add CsvFragmentScanOption support [arrow] via GitHub
• 2026/01/29 Re: [I] [CI][Python] Win job started failing on test_download_tzdata_on_windows [arrow] via GitHub
• 2026/01/29 Re: [I] [C++] Fix ToStringWithoutContextLines to check for :\d+ pattern before removing lines [arrow] via GitHub
• 2026/01/29 Re: [I] [Python] Dynamic casting during JSON schema inference [arrow] via GitHub
• 2026/01/29 Re: [I] [Python] Add NOTICE.txt and LICENSE.txt files to pyarrow-{version}.tar.gz to pypi.org Download files [arrow] via GitHub
• 2026/01/29 Re: [I] [C++][Gandiva] Add support for IN expressions for date and timestamp [arrow] via GitHub
• 2026/01/29 Re: [I] [Gandiva][C++]Support regex mode options in LIKE [arrow] via GitHub
• 2026/01/29 Re: [I] [C++][Gandiva] Implement to_char() function on Gandiva [arrow] via GitHub
• 2026/01/29 Re: [I] [GLib] Add CsvFragmentScanOption support [arrow] via GitHub
• 2026/01/29 Re: [I] [C++][CSV] Allow missing columns at end of row [arrow] via GitHub
• 2026/01/29 [I] [FlightSQL][JDBC] NullPointerException in DatabaseMetadata methods when SqlInfo is unavailable [arrow-java] via GitHub
• 2026/01/29 [I] [Python][Packaging] Merge Windows wheels base and test base images into a single image [arrow] via GitHub
• 2026/01/28 Re: [I] [C++][Gandiva] `castTIMESTAMP_utf8` and `castTIME_utf8` should truncate subseconds beyond milliseconds, not reject them [arrow] via GitHub
• 2026/01/28 [I] [Ruby] Add support for writing decimal128/256 arrays [arrow] via GitHub
• 2026/01/28 [I] [Ruby] Add support for writing timestamp array [arrow] via GitHub
• 2026/01/28 Re: [I] [R] Error, read_parquet new expected indices in 23.0.0 [arrow] via GitHub
• 2026/01/28 [I] ci: replace milestone assignment bot [arrow-adbc] via GitHub
• 2026/01/28 Re: [I] [Ruby] Add support for writing fixed size binary array [arrow] via GitHub
• 2026/01/28 Re: [I] [Ruby] Add support for writing time arrays [arrow] via GitHub
• 2026/01/28 Re: [I] Milestone assignment script fails when multiple milestones exist [arrow-java] via GitHub
• 2026/01/28 Re: [I] [CI] Update default platform versions in `.env` [arrow] via GitHub
• 2026/01/28 Re: [I] [C++] Remove obsolete mimalloc patch [arrow] via GitHub
• 2026/01/28 [I] [C++] Enable Minimal Find Arrow package test for MSVC CI [arrow] via GitHub
• 2026/01/28 Re: [I] Support Unloading For Arrow Libraries Used by Flight SQL ODBC in MSVC [arrow] via GitHub
• 2026/01/28 Re: [I] [R] CRAN packaging checklist for version 23.0.0 [arrow] via GitHub
• 2026/01/28 [I] [Dev][Python] Unused python scripts under python/scripts [arrow] via GitHub
• 2026/01/28 Re: [I] [Benchmarking] Install R from non-conda source for benchmarking [arrow] via GitHub
• 2026/01/28 Re: [I] [GO] parquet: dict spaced eof exception [arrow-go] via GitHub
• 2026/01/28 [I] [CI][Python] Win job started failing on test_download_tzdata_on_windows [arrow] via GitHub
• 2026/01/28 [I] [C++][FS][Azure] `GetFileInfo` occasionally resports NOT_FOUND on directories that do exist [arrow] via GitHub
• 2026/01/28 Re: [I] [Docs][Python] Doctest fails on pandas 3.0 [arrow] via GitHub
• 2026/01/28 [I] Milestone assignment script fails when multiple milestones exist [arrow-java] via GitHub
• 2026/01/28 [I] [C++] Remove obsolete mimalloc patch [arrow] via GitHub
• 2026/01/28 Re: [I] [Developer] Provide a dashboard for improved Pull Request management [arrow] via GitHub
• 2026/01/28 Re: [I] [C++] Create specialized queue for serial readahead [arrow] via GitHub
• 2026/01/28 Re: [I] [C++] Investigate auto-cancelling async pipeline utilities when all consumer-side references are lost [arrow] via GitHub
• 2026/01/28 Re: [I] [R] Implement feather::feather_metadata(path) in R arrow [arrow] via GitHub
• 2026/01/28 Re: [I] [R] Determine Arrow C++ library capabilities dynamically on Windows [arrow] via GitHub
• 2026/01/28 Re: [I] [C++] Improve Converter API to support chunking [arrow] via GitHub
• 2026/01/28 Re: [I] [Python][CI] python-sdist job should publish sdist as artifact [arrow] via GitHub
• 2026/01/28 Re: [I] [C++] Return references from DictionaryArray accessor methods [arrow] via GitHub
• 2026/01/28 Re: [I] [C++] Remove GlobalForkSafeMutex [arrow] via GitHub
• 2026/01/28 Re: [I] [Python] Add `restack_batches()` [arrow] via GitHub
• 2026/01/28 Re: [I] [CI][Python] Nightly wheels fail uploading to scientific-python-nightly-wheels due to Storage requirements exceeded [arrow] via GitHub
• 2026/01/28 Re: [I] [Doc][CI] Build Sphinx docs in parallel [arrow] via GitHub
• 2026/01/28 Re: [I] [Docs] Add documentation relating to AI tooling [arrow] via GitHub
• 2026/01/27 Re: [I] ci: limit concurrency in R workflows [arrow-adbc] via GitHub
• 2026/01/27 Re: [I] [C++][CI][Packing] Fix `rsync` command not found for ODBC Nightly Release step [arrow] via GitHub
• 2026/01/27 [I] dev/release: update text for announce@ [arrow-adbc] via GitHub
• 2026/01/27 [I] ci: limit concurrency in R workflows [arrow-adbc] via GitHub
• 2026/01/27 Re: [I] [C++/Java] Error when reading inner lists within a struct in empty outer lists from C++/Python in Java [arrow-java] via GitHub
• 2026/01/27 [I] [C++/Java] Error when reading inner lists within a struct in empty outer lists from C++/Python in Java [arrow-java] via GitHub
• 2026/01/27 Re: [I] JDBC driver: Closing a Connection does not close ResultSets originated from the DatabaseMetadata API, potentially leading to exceptions related to memory leaks [arrow-java] via GitHub
• 2026/01/27 [I] [Benchmarking] Install R from non-conda source for benchmarking [arrow] via GitHub
• 2026/01/27 [I] [CI][Python] Nightly wheels fail uploading to scientific-python-nightly-wheels due to Storage requirements exceeded [arrow] via GitHub
• 2026/01/27 [I] [C++][Gandiva] binary_string can throw an error if input is null [arrow] via GitHub
• 2026/01/27 Re: [I] [C++][Python] Duplicate csv header when table batches start with empty [arrow] via GitHub
• 2026/01/27 [I] [Ruby] Add support for writing fixed size binary array [arrow] via GitHub
• 2026/01/27 Re: [I] [R] Compilation errors on continuous benchmarking [arrow] via GitHub
• 2026/01/27 [I] [Doc] Build Sphinx docs in parallel [arrow] via GitHub
• 2026/01/27 [I] [Ruby] Add support for writing time arrays [arrow] via GitHub
• 2026/01/27 Re: [I] [CI][Python] test-conda-python-emscripten job is timing out [arrow] via GitHub
• 2026/01/27 Re: [I] [Ruby] Strings used in expressions being garbage collected [arrow] via GitHub
• 2026/01/27 Re: [I] [C++][Parquet] Add `arrow::Result` versions for `parquet::arrow::FileReader::ReadRowGroup` and `parquet::arrow::FileReader::ReadRowGroups` [arrow] via GitHub
• 2026/01/27 [I] [C++][Parquet] Add arrow::Result versions for parquet::arrow::RowGroupReader::ReadTable [arrow] via GitHub
• 2026/01/27 Re: [I] [C++] Update developer style guide on usage of shared_ptr [arrow] via GitHub
• 2026/01/27 Re: [I] [R] Support vector of multiple file paths in read_*() functions [arrow] via GitHub
• 2026/01/27 Re: [I] Improve performance of repeated filtered parquet reads [arrow] via GitHub
• 2026/01/27 Re: [I] [C++] Add unordered scan [arrow] via GitHub
• 2026/01/27 Re: [I] [C++][Dataset] Refactor Partitioning to explicitly treat null and absent fields identically [arrow] via GitHub

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