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• 2026/02/09 Re: [I] [CI] Consider sending the nightly build report in HTML format [arrow] via GitHub
• 2026/02/09 Re: [I] [CI] Include the first occurrence of a task failure in the nightly report [arrow] via GitHub
• 2026/02/09 Re: [I] [CI] Include build log's url in the nightly crossbow report [arrow] via GitHub
• 2026/02/09 [I] [Doc] Cannot switch to doc for Arrow 1.0 [arrow] via GitHub
• 2026/02/09 [I] [R]: add support to the new dplyr verb filter_out [arrow] via GitHub
• 2026/02/08 Re: [I] [CI] Unstable AMD64 Conda Integration Test [arrow] via GitHub
• 2026/02/08 Re: [I] [C++][Parquet] Wrong variant extension name [arrow] via GitHub
• 2026/02/08 [I] [CI] Unstable AMD64 Conda Integration Test [arrow] via GitHub
• 2026/02/08 [I] [CI] AMD64 macOS 15-intel Python 3 consistently times out [arrow] via GitHub
• 2026/02/08 [I] [Docs] Broken and obsolete links in the README.md file [arrow-java] via GitHub
• 2026/02/08 Re: [I] [Java] Allocator `buffer` method no setting the capacity correctly. [arrow-java] via GitHub
• 2026/02/08 Re: [I] [Docs] Java API reference links in documentation are broken [arrow-java] via GitHub
• 2026/02/08 [I] [Docs] Java API reference links in documentation are broken [arrow-java] via GitHub
• 2026/02/08 Re: [I] [C++] [Dataset] Dataset repartition / filter / update [arrow] via GitHub
• 2026/02/08 Re: [I] [C++][Gandiva] Implements ABS, FLOOR, PI, SQRT, SIGN, LSHIFT, RSHIFT, CEIL, TRUNC, LN and LOG2 functions [arrow] via GitHub
• 2026/02/08 Re: [I] [Python] Use consistent memory_pool / pool keyword argument name [arrow] via GitHub
• 2026/02/08 Re: [I] [Python] pyarrow.compute not consistent on memory_pool usage [arrow] via GitHub
• 2026/02/08 Re: [I] [C++][Python][FlightRPC] Ensure streaming Flight methods are truly streaming [arrow] via GitHub
• 2026/02/08 Re: [I] [C++] Support for scalar value recycling in RecordBatch/Table creation [arrow] via GitHub
• 2026/02/08 Re: [I] [C++] Arithmetic kernels for numeric arrays [arrow] via GitHub
• 2026/02/07 Re: [I] [Ruby] Add support for writing dictionary array [arrow] via GitHub
• 2026/02/07 [I] [C++] Enable hardware support for arrow::util::Float16 on GCC and Clang [arrow] via GitHub
• 2026/02/07 [I] [C++] [arrow] via GitHub
• 2026/02/07 [I] [Ruby] Add support for writing dictionary array [arrow] via GitHub
• 2026/02/07 Re: [I] [C++] CMake error when Arrow is built as subproject: ARROW_SIMD_LEVEL undefined in io/CMakeLists.txt [arrow] via GitHub
• 2026/02/07 [I] tzdata error due to a lack of a discoverable system timezone database [arrow] via GitHub
• 2026/02/07 Re: [I] [C++][FlightSQL][ODBC] macOS ODBC standalone CI [arrow] via GitHub
• 2026/02/07 Re: [I] [Archery] Allow comment bot command to be at the beginning of any line [arrow] via GitHub
• 2026/02/07 Re: [I] [C++][Compute] GroupBy: add parallelism to hash group by [arrow] via GitHub
• 2026/02/07 Re: [I] [C++][Docs] Add documentation for authoring compute kernels [arrow] via GitHub
• 2026/02/07 Re: [I] [C++][Compute] GroupBy: support more than 2^32 groups [arrow] via GitHub
• 2026/02/07 Re: [I] [C++] Function to combine Arrays row-wise into ListArray [arrow] via GitHub
• 2026/02/07 Re: [I] [R] Add function concat_arrays() that converts ChunkedArray to Array [arrow] via GitHub
• 2026/02/07 Re: [I] [C++][Compute] GroupBy: add unittests for individual components of hash group by [arrow] via GitHub
• 2026/02/06 [I] [C++][Azure] Add ApplicationId to AzureFileSystem [arrow] via GitHub
• 2026/02/06 [I] [Python] Consider `pa.date32/64.to_pandas_dtype()` returning `datetime64[s]` instead of `datetime64[ms]` [arrow] via GitHub
• 2026/02/06 [I] [R] CRAN packaging checklist for version 23.0.0.1 [arrow] via GitHub
• 2026/02/06 [I] [C++] CMake error when Arrow is built as subproject: ARROW_SIMD_LEVEL undefined in io/CMakeLists.txt [arrow] via GitHub
• 2026/02/06 Re: [I] [CI][Release] macOS conda source verification jobs fail to build Arrow C++ [arrow] via GitHub
• 2026/02/06 Re: [I] [Python] String comparison on pyarrow/table.pxi should require the GIL [arrow] via GitHub
• 2026/02/06 Re: [I] [C++][Compute] Generalize null value promotion for scalar arithmetic functions [arrow] via GitHub
• 2026/02/06 Re: [I] [Python] Expose IpcReadOptions to ipc facility [arrow] via GitHub
• 2026/02/06 Re: [I] [C++][Compute] Extend compute layer to support ternary scalar functions [arrow] via GitHub
• 2026/02/06 Re: [I] [Website][Release] Include Rust contributors, committers, and commits in release notes [arrow] via GitHub
• 2026/02/06 Re: [I] [R] Bindings for paste(collapse), str_c(collapse), and str_flatten() [arrow] via GitHub
• 2026/02/06 Re: [I] [C++] String concatenate aggregate kernel [arrow] via GitHub
• 2026/02/06 Re: [I] [Python] Array construction from numpy array is unclear about zero copy behaviour [arrow] via GitHub
• 2026/02/05 [I] flight-sql-jdbc-driver throws "parameter ordinal 1 out of range" for PreparedStatement in SELECT query [arrow-java] via GitHub
• 2026/02/05 [I] [C++][Gandiva] `repeat()` doesn't check output size [arrow] via GitHub
• 2026/02/05 Re: [I] [C++][CI][FlightRPC][ODBC] Update ODBC MSI file name for Nightly Upload [arrow] via GitHub
• 2026/02/05 Re: [I] [C++][FlightSQL][ODBC][CI] Run ODBC test executables in CI using `cpp_test.sh` [arrow] via GitHub
• 2026/02/05 [I] PyArrow cannot read from a newline-delimited JSON file with inconsistent column types, even if parse_options specifies a schema [arrow] via GitHub
• 2026/02/05 Re: [I] [Packaging][Python] PyArrow fails building with nightlies Cython [arrow] via GitHub
• 2026/02/05 [I] [Python] String comparison on pyarrow/table.pxi should require the GIL [arrow] via GitHub
• 2026/02/05 [I] Unable to load MemoryUtil class if we dont set --add-opens [arrow-java] via GitHub
• 2026/02/05 Re: [I] [Doc] Document security model for the Arrow formats [arrow] via GitHub
• 2026/02/05 [I] [C++] Allow disabling extension type deserialization when reading IPC [arrow] via GitHub
• 2026/02/05 [I] [C++][Python] Act on existing deprecations [arrow] via GitHub
• 2026/02/05 Re: [I] [C++] Support creating AsyncScanner from a single fragment [arrow] via GitHub
• 2026/02/05 Re: [I] [Python][Dataset] Consider allowing projecting/scanning with a given schema [arrow] via GitHub
• 2026/02/05 Re: [I] [C++][Gandiva] Implement castVARCHAR for date, time, intervalDay and intervalYear [arrow] via GitHub
• 2026/02/05 Re: [I] [C++] Provide thread id accessors [arrow] via GitHub
• 2026/02/05 Re: [I] Range type (anchored variable-length interval) [arrow] via GitHub
• 2026/02/05 Re: [I] [C++] Query engine umbrella issue [arrow] via GitHub
• 2026/02/05 Re: [I] [C++][Dataset][Compute] Add support for dictionary_encode to Expression [arrow] via GitHub
• 2026/02/05 Re: [I] [Python][Parquet] Support LZ4_RAW for parquet writing [arrow] via GitHub
• 2026/02/05 Re: [I] [Packaging][Python] PyArrow fails building with nightlies Cython [arrow] via GitHub
• 2026/02/05 [I] rust snowflake: bulk ingest with the ADBC_INGEST_OPTION_MODE_CREATE_APPEND mode does not fail during schema updates [arrow-adbc] via GitHub
• 2026/02/04 [I] [JDBC] NullPointerException in DriverManager#getConnection​(String url, Properties info) [arrow-java] via GitHub
• 2026/02/04 Re: [I] [C++] Error when building Arrow-CPP w/ Azure Filesystem for Conda-Forge [arrow] via GitHub
• 2026/02/04 Re: [I] [Java] Explore using Avatica as basis for Flight JDBC Driver [arrow-java] via GitHub
• 2026/02/04 Re: [I] [Doc][CI][Python] Doctests failing on rst files due to pandas 3+ [arrow] via GitHub
• 2026/02/04 [I] Test failures with CategoricalArrays 1.0 [arrow-julia] via GitHub
• 2026/02/04 [I] [Doc][CI][Python] Doctests failing on doctests in rst files due to pandas 3+ [arrow] via GitHub
• 2026/02/04 Re: [I] [C++] Segfault in SparseCSFIndex::Equals with mismatched dimensions [arrow] via GitHub
• 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

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