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Open Issues (last 90 days)

29

Issues from New Contributors

18

Open PRs (last 90 days)

28

PRs from New Contributors

19

Open issues from last 90 days (new contributors highlighted)
Date Title
2026-08-11 [Python] pa.types.is_nested() returns False for run-end encoded types
2026-08-07 [Python] pa.output_stream() aborts the process on a read-only buffer
2026-08-06 [Python] Use CPython Limited APIs in python/pyarrow
2026-07-27 [C++][Python] Significant performance degradation after pyarrow 24.0.0 to 25.0.0 upgrade
2026-07-27 [Python] s3fs selector count is not asserted
2026-07-23 [Python][Parquet] Expose SizeStatisticsLevel in the Parquet writer API
2026-07-23 [Python] pyarrow dropping rows silently
2026-07-22 [Python] Define whether user-overridden to_pylist on Array subclasses is honored for nested children
2026-07-22 [Python] Debian job on i386 segfaults when running Python tests
2026-07-17 [Python] test_assume_timezone does not assert nonexistent and ambiguous results
2026-07-15 [C++][Python] Casting nested structs fails when inner struct are non-nullable, but the field for the inner struct is nullable
2026-07-10 [C++][Python] PyArrow Parquet writer fails writing [null] for null structs, but Datafusion works. Need to add [null] to current working [“”] for NULLs.
2026-07-09 [Python] Int64Scalar and related instances should subclass the appropriate numbers abstract base class (abc)
2026-07-09 [Python] Convert to_pylist fast paths per range instead of per element
2026-07-08 [Python] Convert maps to dicts without per-element Scalars in to_pylist(maps_as_pydicts=…)
2026-07-02 [Python] Add AGENTS.md
2026-07-01 [Docs][C++][Python] Update docs, add examples, tutorials
2026-07-01 [Python][Parquet] FIXED_LEN_BYTE_ARRAY fails to cast to UUID on Python 3.14 / Nightly builds
2026-06-29 [Python] Dask integration test fails due to what seems a pytest mark collection error
2026-06-24 [Python] PyArrow copies large BinaryView buffers during construction and scalar extraction
2026-06-16 [Python][C++] Deadlock in ensure_s3_finalized atexit handler when pyarrow.fs.S3FileSystem reference outlives interpreter shutdown (pyarrow 24.x regression)
2026-06-12 [Python] Consistent to_pandas_dtype (and to_pandas) behavior for canonical extension types
2026-06-10 [Python][Parquet] pyarrow.parquet.write_table ignores version and coerce_timestamps arguments for Time64 fields
2026-06-09 [Python][Parquet] Support reading and writing Parquet Variant columns
2026-06-09 [Python] Bindings for Variant canonical extension type
2026-06-04 [Packaging][Python] Add support for Python 3.15
2026-06-01 [C++][Python] AzureFileSystem can’t use GetProperties with User Delegation SAS tokens
2026-05-24 [Python] Expose Expression.field_refs() to enumerate referenced fields
2026-05-20 [CI][Python] Revert pinning miniforge once mamba solver issue is resolved
Open PRs from last 90 days (new contributors highlighted)
Date Title
2026-08-17 GH-35650: [Python] Cast array fill values in fill_null instead of as_py()
2026-08-15 GH-48231 [C++][Parquet] Add FSST encoding support for Parquet
2026-08-14 GH-50866: [Python][Parquet] Add use_threads to ParquetWriter to encode a row group’s columns in parallel
2026-08-11 GH-50847: [Python] Add Type_RUN_END_ENCODED to _NESTED_TYPES set
2026-08-09 GH-50665: [Python] Assert s3fs selector result count
2026-08-09 GH-46918: [Python] Respect explicit Field type in add_column/set_column
2026-08-09 GH-50831: [Python] Avoid aborting on read-only output buffers
2026-08-06 GH-41670: [C++][Python] Move to DLPack 1.3
2026-08-04 GH-25505: [C++][Python] Add replace_with_indices compute kernel
2026-08-02 GH-48473: [CI][Python] Require numpy 2.0
2026-08-02 GH-50658: [C++][Dev] Add RunEndEncoded support to gdb_arrow.py
2026-07-28 GH-50695: [C++] Use the full unsigned range for unsigned dictionary index types
2026-07-27 GH-50657: [C++][Dev] Implement BinaryView support in gdb_arrow.py
2026-07-27 GH-50659: [C++][Dev] Implement ListView support in gdb_arrow.py
2026-07-24 GH-50342: [Python] Add AGENTS.md
2026-07-23 GH-50619 [Python][Parquet] Expose size statistics level in the Parquet writer
2026-07-20 GH-49384: [Python] Respect copy=True in ChunkedArray.__array__
2026-07-19 GH-50515: [C++][Compute] Respect parent validity bitmap when casting nested structs with non-nullable fields
2026-07-08 GH-50429: [Python] Convert maps to dicts without per-element Scalars in to_pylist
2026-07-07 GH-50829 [Python] Use more CPython Limited APIs in python/pyarrow
2026-07-05 GH-30894: [C++][Python] Fix Table::Slice returning incorrect length f…
2026-07-04 GH-50530: [Python] Assert assume_timezone results at input precision
2026-07-01 GH-50312: [Python] Fix UUID extension type round-trip to pandas returning bytes
2026-06-11 GH-26685: [Python][C++] Trim buffers when pickling a sliced array
2026-06-10 GH-41488: [C++][Python] Apply timestamp_parsers as fallback when parsing CSV date and time columns
2026-06-10 GH-49907: [Python] Implement FixedShapeTensorType.to_pandas_dtype
2026-05-24 GH-50027: [Format][C++][Python] Add arrow.range canonical extension type
2026-05-23 GH-36388: [C++][Python] Return error from MakeArrayFromScalar on offset overflow

Open Issues (last 90 days)

9

Issues from New Contributors

4

Open PRs (last 90 days)

3

PRs from New Contributors

0

Open issues from last 90 days (new contributors highlighted)
Date Title
2026-07-23 [R] Make better use of field metadata
2026-07-23 [R] R bindings fail to build on WinARM
2026-07-15 [R] read_ipc_stream fails to unify nested Enum fields inside a Struct array across record batches
2026-07-13 [R] Add release process skill
2026-07-13 [R] CRAN packaging checklist for version 25.0.0
2026-07-06 [R] Reading a parquet with a Float16 column yields incorrect value
2026-06-22 [R] Data race issue from R API requests in parallel region
2026-06-07 [R] R arrow crash
2026-05-19 [R][Wasm] Fix Error: thread constructor failed: Not supported under Wasm
Open PRs from last 90 days (new contributors highlighted)
Date Title
2026-08-11 GH-46646: [dev][R] Replace linr with jarl for R linting / pre-commit check
2026-07-13 GH-50239: [R] Data race issue from R API requests in parallel region
2026-07-09 GH-50378: [R] Reading a parquet with a Float16 column yields incorrect value

Open Issues (last 90 days)

77

Issues from New Contributors

19

Open PRs (last 90 days)

77

PRs from New Contributors

41

Open issues from last 90 days (new contributors highlighted)
Date Title
2026-08-17 [C++][Gandiva] Out-of-bounds read in soundex_utf8 mappings lookup
2026-08-17 [C++][Parquet] Introduce FileType reference implementation
2026-08-16 [C++] is_null kernel does not propagate nan_is_null for nested types
2026-08-15 [C++] Add support for List and LargeList types to replace_with_mask
2026-08-15 [C++][FS][Azure] Azurite tests can race service startup
2026-08-15 [C++] Replace Extension RapidJSON usage with simdjson
2026-08-15 [C++][Compute] coalesce expression binding skips decimal normalization for mixed decimal types
2026-08-15 [C++] deprecated-declarations warnings in bundled google-cloud-cpp
2026-08-13 [C++] parquet tools: linking error when ARROW_JSON=OFF with undefined reference to `arrow::json::JsonWriter::GetString() const’
2026-08-12 [C++][FlightRPC][ODBC] SQL_ATTR_CURRENT_CATALOG (and SQL_DESC_NAME) decode a wide string with the byte-wise decoder
2026-08-10 [C++][Packaging] TST: arrow-flight-test started hanging on windows
2026-08-07 [C++] Use JsonWriter consistently in LogicalType::ToJSON()
2026-08-06 [C++][FlightRPC][ODBC] Add SQLGetInfo missing tests
2026-08-06 [C++][Parquet] Make DELTA_BYTE_ARRAY value reconstruction storage-agnostic
2026-08-05 [C++][IPC] Improve sparse tensor index validation
2026-08-04 [C++][FlightSQL][ODBC][SQLForeignKeys] Implement SQLForeignKeys catalog function
2026-08-04 [C++][FlightSQL][ODBC][SQLPrimaryKeys] Implement SQLPrimaryKeys catalog function
2026-08-03 [C++] Speed up CopyBitmap/InvertBitmap
2026-08-03 [C++] UpdateLevelHistogram produces incorrect histograms in fast path
2026-08-03 [C++] C++ Extra Meson build fails due to missing libxml2 for azure
2026-07-31 [C++] ARROW_STATIC_INSTALL_INTERFACE_LIBS declarations are usually forgotten because they are separate
2026-07-30 [Docs][Doc][C++] run-end-encoding functions not listed in compute functions
2026-07-30 [C++] Remove call_traits::argument_count
2026-07-29 [C++][CI] Investigate sccache performance
2026-07-29 [C++] Replace std::is_same_v with std::same_as
2026-07-29 [C++][Parquet] Support limit RowGroup size by bytes.
2026-07-29 [C++][Parquet] Reading dictionary-encoded BYTE_ARRAY columns is slow due to per-value appends and buffer growth reallocations
2026-07-29 [C++] ComputeLogicalNullCount crashes for dictionary arrays with null value type
2026-07-28 [C++] Simplify ObjectParser simdjson result handling
2026-07-28 [C++][Parquet] Add IEEE-754 total order and nan count for floating types
2026-07-27 [C++][Python] Significant performance degradation after pyarrow 24.0.0 to 25.0.0 upgrade
2026-07-27 [C++][Dev] Implement ListView support in gdb_arrow.py
2026-07-27 [C++][Dev] Implement RunEndEncoded support in gdb_arrow.py
2026-07-27 [C++][Dev] Implement BinaryView support in gdb_arrow.py
2026-07-27 [C++][Dev] Implement missing data types in gdb_arrow.py
2026-07-26 [C++][Compute] Optimize min/max_element_wise with word at a time validity handling
2026-07-25 [C++][Engine] Substrait consumer silently drops modern FetchRel and AggregateRel fields
2026-07-24 [Parquet][C++] Optimize RecordReader for flat optional
2026-07-23 [C++][Python] IPC serialization drops a union’s buffers when the union is wrapped in an extension type (invalid data; segfault on read)
2026-07-22 [C++] AppendScalar implementation uses polymorphism
2026-07-22 [C++] Add a VisitIntegerType helper
2026-07-20 [C++] LevelDecoder::Decode，internal::FindMinMax consume lots of cpu
2026-07-16 [C++] Invalid MSVC flag causes nuisance C++ build warnings
2026-07-15 [C++] RunEndEncodedBuilder does not merge consecutive NaN values
2026-07-15 [C++][Python] Casting nested structs fails when inner struct are non-nullable, but the field for the inner struct is nullable
2026-07-15 [C++][Compute] unique, value_counts and dictionary_encode have no kernel for float16 (halffloat)
2026-07-15 [C++] Choose the Correct Value in ArrayBuilder::AppendEmptyValue() for Floating-Point Types
2026-07-14 [C++] Clarify that RunEndEncodedBuilder::AppendScalar Only Accepts std::shared_ptr
2026-07-14 [C++][Gandiva] Out-of-bounds read in upper/lower/initcap on truncated trailing UTF-8
2026-07-13 [C++] REEBuilder Produces Incorrect Values When Using AppendArraySlice
2026-07-11 [C++][Compute] Support string_view/binary_view in scalar string predicate kernels
2026-07-11 [C++][Gandiva] Integer overflow in mask output buffer size causes heap overflow
2026-07-10 [C++][Python] PyArrow Parquet writer fails writing [null] for null structs, but Datafusion works. Need to add [null] to current working [“”] for NULLs.
2026-07-09 [C++][Parquet] Add Skip on Parquet decoders
2026-07-09 [C++][CMake] Invalid version script argument supplied to MSVC linker
2026-07-09 [C++][Gandiva] Out-of-bounds read when formatting invalid date/timestamp error messages
2026-07-07 [C++] Add BinaryDataBuilder class
2026-07-03 [C++] KeyValueMetadata::DeleteMany method crashes with duplicate 0 indexes
2026-07-03 [C++] KeyValueMetadata Bugs
2026-07-03 [C++] KeyValueMetadata accepts duplicate keys
2026-07-02 [C++] Add AGENTS.md to C++ dir
2026-07-01 [C++][Benchmark] Add additional benchmark for Batch/TableToTensor
2026-07-01 [C++][Parquet] Reject outlandish values in DELTA_BINARY_PACKED decoder
2026-06-30 [C++][IPC] Consider validation of index sizes in SparseCSFIndex::Make
2026-06-29 [C++][FlightRPC] Refactor GRPC server and transport classes
2026-06-25 [C++] Simplify or remove arrow/util/functional.h
2026-06-25 [C++] Change BaseBinaryBuilder::GetView to return a view with a null data pointer for entries added via AppendNull
2026-06-24 [C++] Arrow test ‘arrow-utility-test’ contains container-overflow error
2026-06-16 [C++] Move S3 to its own shared library
2026-06-11 [C++] Update bundled RE2
2026-06-10 [C++] content-encoding field missing from s3 fs.
2026-06-10 [C++] arrow-utility-test fails spuriously(?) on osx-arm64
2026-06-08 [C++] Make S3Filesystem consume key-value options
2026-06-04 [C++][FlightRPC][ODBC] Simplify package_odbc.yml
2026-06-02 [C++][Compute] Remove redundant cast kernels
2026-06-01 [C++][Python] AzureFileSystem can’t use GetProperties with User Delegation SAS tokens
2026-05-29 [C++] All data is null for one column in one row group for parquet, arrow will encode with dictionary, while parquet-java use encode plain
Open PRs from last 90 days (new contributors highlighted)
Date Title
2026-08-17 GH-50893: [C++][Gandiva] fix out-of-bounds read in soundex mappings lookup
2026-08-17 GH-50891: [C++][Parquet] DON’T MERGE NOW: Support FILE logical type
2026-08-15 GH-50879: [C++] Implement replace_with_mask for List and LargeList types
2026-08-15 GH-50876: [C++][FS][Azure] Wait for Azurite to start
2026-08-15 GH-50830: [C++][Parquet] Use JsonWriter for LogicalType::ToJSON()
2026-08-15 GH-48231 [C++][Parquet] Add FSST encoding support for Parquet
2026-08-15 GH-50869: [C++][Compute] Tighten coalesce exact dispatch for decimal varargs
2026-08-13 GH-50524: [C++] Honor array offset in pairwise_diff
2026-08-12 GH-50852: [C++][FlightRPC][ODBC] Decode wide connection/descriptor string attributes with the wide decoder
2026-08-11 GH-30431: [C++] Add EscapeStyle to CSV Writer for configurable escape control
2026-08-10 GH-50735: [C++] Add run-end encoding functions to compute docs
2026-08-10 GH-45086: [C++] Fix heap buffer overflow in FillNullForward/Backward …
2026-08-10 GH-50828: [C++][FlightRPC][ODBC] Add SQLGetInfo remote tests
2026-08-09 GH-40128: [C++][Python] Preserve dictionaries in empty casts
2026-08-06 GH-41670: [C++][Python] Move to DLPack 1.3
2026-08-04 GH-25505: [C++][Python] Add replace_with_indices compute kernel
2026-08-04 GH-50689: [C++][Parquet] Add IEEE-754 total order and nan count for floating types
2026-08-03 GH-49949: [C++][S3] Don’t call HeadBucket when creating directories
2026-08-03 GH-50784: [C++] Align write in TransferBitmap
2026-08-03 GH-50699: [C++] Fix ComputeLogicalNullCount crash for null-typed dictionaries
2026-08-02 GH-48473: [CI][Python] Require numpy 2.0
2026-08-02 GH-50658: [C++][Dev] Add RunEndEncoded support to gdb_arrow.py
2026-07-31 GH-50762: [C++][Feather] Avoid reading outside sliced bitmap buffers
2026-07-31 GH-47774: [C++] Force-inlince Status::~Status() to improve reading performance
2026-07-30 GH-31374: [C++] Prevent strptime from normalizing invalid dates
2026-07-30 GH-48476: [C++] [Parquet] Add max_row_group_size writer property to limit row groups by compressed byte size
2026-07-30 GH-50728: [C++] Remove call_traits::argument_count in favor of type_traits
2026-07-29 GH-50703: [C++][Parquet] Reserve dictionary byte array data before decoding
2026-07-28 GH-50695: [C++] Use the full unsigned range for unsigned dictionary index types
2026-07-28 GH-50548: [Parquet][C++] Check min max level inside decoder
2026-07-27 GH-50657: [C++][Dev] Implement BinaryView support in gdb_arrow.py
2026-07-27 GH-50659: [C++][Dev] Implement ListView support in gdb_arrow.py
2026-07-27 GH-50596: [C++] AppendScalar implementation uses polymorphism
2026-07-26 GH-50645: [C++][Compute] Optimize min/max_element_wise with word at a time validity handling
2026-07-25 GH-50634: [C++][Engine] Fix Substrait consumer silently dropping modern FetchRel/AggregateRel fields
2026-07-24 GH-50628: [C++][Parquet] Rework RecordReader to introduce flat optional optimization
2026-07-22 GH-43838: [Python][C++] Preserve nested NullType metadata in array views
2026-07-22 GH-50592: [C++][Gandiva] fix out-of-bounds read in evaluate_return_char_length
2026-07-20 GH-50548: [C++][Parquet] PERF: Avoid O(n) level range validation in LevelDecoder::Decode
2026-07-19 GH-50515: [C++][Compute] Respect parent validity bitmap when casting nested structs with non-nullable fields
2026-07-19 GH-50544: [C++][Gandiva] fix out-of-bounds read in round with most negative precision
2026-07-18 GH-50539: [C++][Gandiva] size varlen cast output from the formatter
2026-07-16 GH-50527: [C++] Remove ARROW_SSE4_2_FLAG for x86 MSVC
2026-07-16 GH-50522: [C++][Gandiva] fix heap overflow in aes_encrypt output sizing
2026-07-14 GH-50504: [C++][Gandiva] fix out-of-bounds read in upper/lower/initcap
2026-07-13 GH-35815: [C++][Compute] Support dictionary inputs in UTF-8 trim
2026-07-13 GH-50351 : [C++] KeyValueMetadata::DeleteMany method crashes
2026-07-12 GH-50308: [C++][IPC] Add input size validation to SparseCSFIndex::Make
2026-07-11 GH-50478: [C++][Compute] Support string_view/binary_view in scalar string predicate kernels
2026-07-11 GH-50472: [C++][Gandiva] fix integer overflow in mask output allocation
2026-07-09 GH-50449: [C++] Invalid version script argument supplied to MSVC linker
2026-07-09 GH-50440: [C++][Gandiva] fix out-of-bounds read in set_error_for_date
2026-07-07 GH-50249: [C++] Add ArrayBuilder::IsValid and ArrayBuilder::IsNull
2026-07-05 GH-50351: [C++] Fix KeyValueMetadata::DeleteMany crash with duplicate…
2026-07-05 GH-50371: [C++][Gandiva] Fold common subexpressions before code generation
2026-07-05 GH-30894: [C++][Python] Fix Table::Slice returning incorrect length f…
2026-07-03 GH-50348: [C++] Fix duplicate keys issue in KeyValueMetadata
2026-07-02 GH-50333: [C++][Parquet] Add dense decode path for FIXED_LEN_BYTE_ARRAY
2026-06-26 GH-49889: [C++][Compute] Handle logical nulls in validity kernels
2026-06-25 GH-45937: [C++][Parquet] support to read, write and validate variant
2026-06-20 GH-45948: [C++][Parquet] Variant shredding
2026-06-12 GH-50148: [C++] Add Content-Encoding support to S3 filesystem metadata
2026-06-12 GH-43010: [C++][Compute] Support view arrays in selection kernels
2026-06-11 GH-26685: [Python][C++] Trim buffers when pickling a sliced array
2026-06-10 GH-48740: [C++] Add missing CTypeTraits for decimal types
2026-06-10 GH-41488: [C++][Python] Apply timestamp_parsers as fallback when parsing CSV date and time columns
2026-06-09 GH-40781: [C++] Mechanism for disabling MemoryPoolStats at compile-time
2026-06-08 GH-45947 : [C++][Parquet] Variant encoding
2026-06-08 GH-45946: [C++][Parquet] Variant decoding
2026-06-01 GH-45804: [C++][Statistics] Add array statistics schema support
2026-05-29 GH-50067: [C++] bounds-check Feather V1 column buffer slices
2026-05-29 GH-49904: [C++] Deprecate RandomAccessFile legacy ReadAt and ReadAsync
2026-05-27 GH-29309: [C++] Preserve BinaryBuilder data type
2026-05-24 GH-50027: [Format][C++][Python] Add arrow.range canonical extension type
2026-05-23 GH-36388: [C++][Python] Return error from MakeArrayFromScalar on offset overflow
2026-05-21 [C++][Parquet] Saturate ApplicationVersion components instead of atoi UB
2026-05-18 GH-49985: [C++][Gandiva] Duplicate function aliases with same parameters
Activity Trends (2 years)
Dev Mailing List: LLM-generated summary of this month’s activity

  • Apache Arrow 25.0.0 and 25.0.1 releases: Major release 25.0.0 was published with over 200 resolved issues, followed quickly by a 25.0.1 patch release to fix critical bugs and performance regressions in Python nested types. Thread

  • Apache Arrow ADBC 24 release: ADBC version 24 was released featuring 57 improvements and a major documentation overhaul to better explain driver sources and vendor-specific implementations. Thread

  • Semantics of non-nullable fields in complex types: Discussion regarding how the nullable flag in IPC metadata should be semantically interpreted for nested fields in structs, unions, and dictionary-encoded arrays. Thread

  • Alignment of Variant extension and Parquet shredding specs: Proposal to update the Arrow Variant extension specification to resolve inconsistencies with the Parquet shredding spec, specifically regarding unsigned integer support. Thread

  • Windows Arm64 support for PyArrow: Microsoft and Linaro proposed a plan to provide win_arm64 support for PyArrow, involving a migration to abi3 wheels and a unified Windows build path. Thread

  • Swift version upgrade to 6.0: Proposal to raise the minimum Swift requirement to version 6.0 to leverage native Int128 support, which is essential for implementing robust decimal types. Thread

  • Canonical BigDecimal extension type: A formal vote was initiated for a new arrow.big_decimal extension type to handle variable-scale numeric data, though some maintainers expressed concerns about specification readiness. Thread

  • Limits on concurrent PRs for non-committers: To combat a rise in low-quality AI contributions, the community is discussing a policy to limit the number of concurrent open pull requests allowed for non-committers. Thread

PRs by contributor type (last 18 months)
Recent PRs from new contributors
Date Title Author State
2026-08-17 GH-50897: [Python] Fix typo LZ0 -> LZO in ORC writer docstring maupatel open
2026-08-17 MINOR: [CI] Bump apache/infrastructure-actions/stash/save from 0ba14156c9f4c3cfbe4b0c9f36339ab0f8d81e53 to bc817c8e9ad7d8216aab74223e32ea391e233b2c dependabot[bot] closed
2026-08-17 MINOR: [CI] Bump apache/infrastructure-actions/stash/restore from 0ba14156c9f4c3cfbe4b0c9f36339ab0f8d81e53 to bc817c8e9ad7d8216aab74223e32ea391e233b2c dependabot[bot] closed
2026-08-17 GH-35650: [Python] Cast array fill values in fill_null instead of as_py() Nishuuzz open
2026-08-16 GH-50623: [C++][Python] Fix IPC serialization for extension storage layouts fallenmi open
2026-08-15 GH-31464: [C++][Python] Fix string filters with empty value sets fallenmi open
2026-08-15 MINOR: [C++][Documentation] Update tutorial docs to include parquet linking gotcha devanbenz open
2026-08-15 GH-50876: [C++][FS][Azure] Wait for Azurite to start booxter open
2026-08-15 GH-50830: [C++][Parquet] Use JsonWriter for LogicalType::ToJSON() NathanChung4 open
2026-08-14 GH-50866: [Python][Parquet] Add use_threads to ParquetWriter to encode a row group’s columns in parallel anniegracehu open
2026-08-13 GH-50524: [C++] Honor array offset in pairwise_diff Krishnanand-G open
2026-08-13 [R][Docs] Document preserving leading zeros in partitions tomatotomata open
2026-08-11 GH-50847: [Python] Add Type_RUN_END_ENCODED to _NESTED_TYPES set Nishuuzz open
2026-08-11 GH-30431: [C++] Add EscapeStyle to CSV Writer for configurable escape control waterWang open
2026-08-10 GH-50735: [C++] Add run-end encoding functions to compute docs VedantRalekar open
2026-08-10 GH-45086: [C++] Fix heap buffer overflow in FillNullForward/Backward … tonyroberts open
2026-08-10 GH-22342: [C++] [Documentation] Clarify Union type ids erichanwang open
2026-08-10 GH-50828: [C++][FlightRPC][ODBC] Add SQLGetInfo remote tests erichanwang open
2026-08-09 GH-50665: [Python] Assert s3fs selector result count erichanwang open
2026-08-09 GH-50819: [Release] Increase YUM verification timeout erichanwang closed
2026-08-09 GH-50831: [Python] Avoid aborting on read-only output buffers erichanwang open
2026-08-06 MINOR: [Format] Fix docstrings in .fbs emilk open
2026-08-04 GH-50622: [Docs][Format] Align Variant typed_value primitive type mappings with the Parquet shredding spec sdf-jkl open
2026-08-04 GH-25505: [C++][Python] Add replace_with_indices compute kernel Kanishk-Dendukuri open
2026-08-04 GH-50801: [Python] Expose the record_batch_reader_source Acero node (RecordBatchReaderSourceNodeOptions) owenowenisme closed
2026-08-03 [WIP][POC] Pgaur on pair evaluation prtkgaur open
2026-08-03 MINOR: [CI] Bump matlab-actions/setup-matlab from 3.0.1 to 3.0.2 dependabot[bot] open
2026-08-03 MINOR: [CI] Bump actions/stale from 10 to 11 dependabot[bot] closed
2026-08-03 MINOR: [CI] Bump docker/login-action from 4.5.1 to 4.6.0 dependabot[bot] closed
2026-08-03 MINOR: [CI] Bump matlab-actions/run-tests from 3.2.0 to 3.2.1 dependabot[bot] open
2026-08-03 GH-50777: [CI][Dev] Fix shellcheck errors in the ci/scripts/r_test.sh KHARSHAVARDHAN-eng closed
2026-08-01 GH-50753: [C++] Co-locate static install interface libraries with dependencies KHARSHAVARDHAN-eng closed
2026-07-31 GH-50762: [C++][Feather] Avoid reading outside sliced bitmap buffers tcmartin open
2026-07-31 GH-47774: [C++] Force-inlince Status::~Status() to improve reading performance zhf999 open
2026-07-30 GH-31374: [C++] Prevent strptime from normalizing invalid dates fallintoplace open
2026-07-30 GH-48476: [C++] [Parquet] Add max_row_group_size writer property to limit row groups by compressed byte size zhf999 open
2026-07-30 DOC list run-end compute functions Whning0513 open
2026-07-30 GH-50707: [C++][Gandiva] Fix out-of-bounds read in mask functions KHARSHAVARDHAN-eng closed
2026-07-30 GH-50726: [CI][Docs] Use bundled simdjson for documentation builds KHARSHAVARDHAN-eng closed
2026-07-29 GH-50702: [Python] Fix .pyx changes requiring two builds to take effect pratyushadk closed
2026-07-29 GH-50595: [C++][UTIL] Add VisitIntegerType helper VedantRalekar closed
2026-07-29 GH-50703: [C++][Parquet] Reserve dictionary byte array data before decoding Punisheroot open
2026-07-28 GH-50674: Add support for recovering Yum repositories KHARSHAVARDHAN-eng closed
2026-07-28 GH-50666: [Release][CI] Use Ubuntu 24.04 for source verification jobs KHARSHAVARDHAN-eng closed
2026-07-28 GH-50395: [C++] Support duration inputs in temporal rounding snigdhachoppac closed
2026-07-27 MINOR: [CI] Bump actions/labeler from 6 to 7 dependabot[bot] closed
2026-07-27 MINOR: [CI] Bump docker/login-action from 4.4.0 to 4.5.1 dependabot[bot] closed
2026-07-27 GH-50657: [C++][Dev] Implement BinaryView support in gdb_arrow.py KHARSHAVARDHAN-eng open
2026-07-27 GH-50659: [C++][Dev] Implement ListView support in gdb_arrow.py KHARSHAVARDHAN-eng open
2026-07-27 GH-50596: [C++] AppendScalar implementation uses polymorphism KHARSHAVARDHAN-eng open
2026-07-27 GH-50636: [C++][R] Fix macOS 11.3 std::span construction in vector_sort KHARSHAVARDHAN-eng closed
2026-07-26 GH-50645: [C++][Compute] Optimize min/max_element_wise with word at a time validity handling Kanishk-Dendukuri open
2026-07-26 GH-50627: [C++] Migrate from_string.cc to simdjson KHARSHAVARDHAN-eng closed
2026-07-26 GH-50637: [C++] Register Abseil bundled static libraries in build_absl() KHARSHAVARDHAN-eng closed
2026-07-26 GH-50641: [C++][Compute] Fix correctness error in decimal round_binary kernel dmsa-or closed
2026-07-24 GH-50342: [Python] Add AGENTS.md ybapat open
2026-07-23 GH-50619 [Python][Parquet] Expose size statistics level in the Parquet writer abaybek open
2026-07-22 GH-43838: [Python][C++] Preserve nested NullType metadata in array views dartkron open
2026-07-21 GH-50508: [C++] Support scalar values in AppendScalars Moemenmohamed24 closed
2026-07-20 MINOR: [CI] Bump actions/setup-python from 6 to 7 dependabot[bot] closed
2026-07-20 GH-50560: [C++][FlightRPC][ODBC] Fix SQLDescribeCol column_size/decimal_digits width vikrantpuppala closed
2026-07-20 GH-50548: [C++][Parquet] PERF: Avoid O(n) level range validation in LevelDecoder::Decode parthpathak1201 open
2026-07-19 GH-50515: [C++][Compute] Respect parent validity bitmap when casting nested structs with non-nullable fields aaron-seq open
2026-07-18 GH-49384: [Python] Respect copy=True in ChunkedArray.__array__ jingyi-zhao-01 closed
2026-07-17 GH-44183: [C++] Support run-end encoded struct, list (view), large list (view) and map values BenMagyar closed
2026-07-16 GH-50527: [C++] Remove ARROW_SSE4_2_FLAG for x86 MSVC loctormor open
2026-07-16 GH-50603: [R] remove assertthat dependency + improve error messages olivroy closed
2026-07-15 GH-50512: [C++][Compute] Support float16 in hash kernels (dictionary_encode, unique, value_counts) fornwall open
2026-07-13 GH-37004: [C++][Python] Fix dropped child data when viewing/casting e… connorsimms closed
2026-07-13 GH-35815: [C++][Compute] Support dictionary inputs in UTF-8 trim LarryHu0217 open
2026-07-12 GH-50481: [C++] Fix CSV reader mis-parsing rows with an embedded NUL byte HannaWeissberg closed
2026-07-12 GH-50308: [C++][IPC] Add input size validation to SparseCSFIndex::Make connorsimms open
2026-07-11 GH-46853: [Python][Docs] Document preserving leading zeros in CSV kalyanamdewri open
2026-07-11 GH-37476: [C++][Python] Preserve unsigned dictionary index types when building from values mkzung closed
2026-07-09 GH-50449: [C++] Invalid version script argument supplied to MSVC linker johnwparent open
2026-07-07 GH-50282: [C++][FlightRPC] Refactor GRPC server and transport classes Alex-PLACET open
2026-07-06 MINOR: [Python][Docs] Remove reference to removed pyarrow.HdfsFile ritsth open
2026-07-06 MINOR: [CI] Bump docker/login-action from 4.2.0 to 4.4.0 dependabot[bot] closed
2026-07-06 GH-50665: [Python] Assert s3fs selector result count anxkhn open
2026-07-06 GH-50380: [C++][Gandiva] fix out-of-bounds read in byte_substr past end Arawoof06 closed
2026-07-05 GH-50531: [Python][Packaging] Set macOS deployment target before building wheel platform tag anxkhn closed
2026-07-05 GH-50351: [C++] Fix KeyValueMetadata::DeleteMany crash with duplicate… AdvancedUno open
2026-07-05 GH-50371: [C++][Gandiva] Fold common subexpressions before code generation likun666661 open
2026-07-05 GH-30894: [C++][Python] Fix Table::Slice returning incorrect length f… AdvancedUno open
2026-07-04 GH-50530: [Python] Assert assume_timezone results at input precision anxkhn open
2026-07-04 GH-50251: [C++] Add GetSpan to ArrayData dkp116 closed
2026-07-03 GH-50341: [C++] Add AGENTS.md to C++ dir AdvancedUno closed
2026-07-03 GH-50355: [C++][Gandiva] fix out-of-bounds read in utf8_length_ignore_invalid Arawoof06 closed
2026-07-03 GH-50351: [C++] Fix KeyValueMetadata::DeleteMany crash with duplicate indices AdvancedUno closed
2026-07-03 GH-50351: [C++] Fix KeyValueMetadata::DeleteMany crash with duplicate indices AdvancedUno closed
2026-07-03 GH-30800: [Python][Docs] Document partition fields with explicit dataset schemas kalyanamdewri open
2026-07-01 GH-50312: [Python] Fix UUID extension type round-trip to pandas returning bytes parker-cassar open
2026-07-01 GH-50087: [Docs][C++] Fix sentence structure in memory.rst regarding MemoryManager OmBiradar closed
2026-07-01 GH-50311: [C++] KeyValueMetadata::Delete returns IndexError instead of crashing due to seg fault OmBiradar closed
2026-07-01 GH-50251: Add GetSpan() convenience method to ArrayData VedantRalekar closed
2026-06-30 MINOR: [Docs] Add Timestamp With Offset to canonical extension types status esadek closed
2026-06-29 MINOR: [CI] Bump actions/cache from 5 to 6 dependabot[bot] closed
2026-06-28 ci: pin GitHub Actions to full commit SHAs XananasX7 closed
2026-06-28 ci: pin GitHub Actions to full commit SHAs XananasX7 closed
2026-06-26 GH-47252: [C++][Compute] Fix sort_indices for temporal types in arrow::Table nfrmtk closed
2026-06-26 GH-50260: [C++] Add ComputeLogicalNullCount to ChunkedArray goel-skd closed
2026-06-24 GH-50237: [C++] Migrate arrow/ipc/metadata_internal.h to Result Shally-Katariya closed
2026-06-22 MINOR: [CI] Bump actions/checkout from 6 to 7 dependabot[bot] closed
2026-06-21 GH-49928: [C++][Parquet] Fix UB in UpdateLevelHistogram from nullptr std::span Diveyam-Mishra closed
2026-06-20 GH-45948: [C++][Parquet] Variant shredding qzyu999 open
2026-06-18 GH-50223: [C++][Compute] Support string_view/binary_view keys in the hash-aggregate Grouper fangchenli closed
2026-06-17 GH-49644: [Python] Support converting list of multi-dimensional arrays to FixedShapeTensor aboderinsamuel closed
2026-06-16 GH-46480: [Docs] Add CITATION.cff citation metadata d33bs open
2026-06-16 GH-50197: [C++][Python] Add “hypot” compute kernel shrivasshankar closed
2026-06-12 GH-50148: [C++] Add Content-Encoding support to S3 filesystem metadata alytantawyy open
2026-06-11 GH-26685: [Python][C++] Trim buffers when pickling a sliced array kirilklein open
2026-06-11 GH-48636: [C++][Parquet] Improve parquet reading using multi threads OmBiradar open
2026-06-10 GH-50149: [C++][Parquet] Handle OOM as soft failure in parquet encoding fuzzer omertt27 closed
2026-06-10 GH-48740: [C++] Add missing CTypeTraits for decimal types Naurder open
2026-06-10 GH-41488: [C++][Python] Apply timestamp_parsers as fallback when parsing CSV date and time columns pearu open
2026-06-10 GH-49907: [Python] Implement FixedShapeTensorType.to_pandas_dtype aboderinsamuel open
2026-06-09 Add support for ppc64le Jenkins-J open
2026-06-09 GH-40781: [C++] Mechanism for disabling MemoryPoolStats at compile-time var-nan open
2026-06-08 GH-45947 : [C++][Parquet] Variant encoding qzyu999 open
2026-06-08 GH-45946: [C++][Parquet] Variant decoding qzyu999 open
2026-06-05 GH-49907: [Python] FixedShapeTensor to_pandas_dtype returns NotImplementedError aboderinsamuel closed
2026-06-04 GH-50103: [C++] Missing iosfwd include in cpp/src/arrow/util/string_util.h atupone closed
2026-06-03 [WIP][POC] Pfor encoding prtkgaur open
2026-06-02 MINOR: [CI] Bump matlab-actions/run-tests from 3.1.2 to 3.2 dependabot[bot] closed
2026-06-01 GH-45804: [C++][Statistics] Add array statistics schema support cjc0013 open
2026-05-29 GH-49904: [C++] Deprecate RandomAccessFile legacy ReadAt and ReadAsync UdayanMahalwar open
2026-05-27 GH-29309: [C++] Preserve BinaryBuilder data type BITree2004 open
2026-05-27 GH-33420: [R] Improve error message when providing a mix of readr and Arrow options Rich-T-kid closed
2026-05-25 MINOR: [CI] Bump matlab-actions/run-tests from 3.0.0 to 3.1.2 dependabot[bot] closed
2026-05-25 MINOR: [CI] Bump docker/login-action from 4.1.0 to 4.2.0 dependabot[bot] closed
2026-05-25 GH-50077: [C++][IPC] Avoid int64 overflow in ReadSparseCSXIndex jmestwa-coder closed
2026-05-25 GH-50051: [C++][Parquet] Avoid size overflow in WKBBuffer::ReadCoords jmestwa-coder closed
2026-05-25 GH-50078: [C++][ORC] Avoid signed overflow when converting timestamps jmestwa-coder closed
2026-05-24 GH-50026: [C++][Parquet] SIMD-accelerate SBBF probe via branchless autovec dmatth1 closed
2026-05-24 Expose mimalloc allocations for profiler interposition pablogsal closed
2026-05-24 GH-50027: [Format][C++][Python] Add arrow.range canonical extension type Hoeze open
2026-05-23 GH-50184: [C++][Parquet] Avoid reading past truncated statistics values in FormatStatValue jmestwa-coder closed
2026-05-23 GH-36388: [C++][Python] Return error from MakeArrayFromScalar on offset overflow Sriniketh24 open
2026-05-21 [C++][Parquet] Saturate ApplicationVersion components instead of atoi UB rootvector2 open
2026-05-20 Add AGENTS.md — MCP Agent Instructions javierfajardo85-rgb closed
2026-05-19 GH-48801: [C++] Set CMAKE_POLICY_VERSION_MINIMUM for RapidJSON KyleFromNVIDIA closed
2026-05-19 GH-48801: [cmake] Update RapidJSON for CMake 4.0 compatibility KyleFromNVIDIA closed
2026-05-19 GH-49991: [C++][FlightRPC] Fix unity build ordering issue spotaws closed
Good First Issues by Component
Good First Issues
60 issues across 7 components
Component Issues
C++ 21
Python 17
R 9
Documentation 8
MATLAB 2
Parquet 2
Benchmarking 1
Needs Champion
Needs Champion
158 items - sorted by age (newest first)
Title Type Component Created Age (days)
[R] col_types ignored when convert_options specified Issue R 2025-11-16 275
[R] Mixed-type list columns fail with unintuitive error message Issue R 2025-08-27 356
[C++][Compute] Add modulo compute kernel Issue C++ 2025-06-25 419
[Python] read_csv converts strings with leading zeros to integers Issue Python, Documentation 2025-06-18 426
[Python][C++] Update type definition of npy_traits for Float16 to arrow::util::Float16 instead of uint16_t Issue C++, Python 2025-06-04 440
[CI][Crossbow][Dev] Continue generating nightlies dashboard for CI: Extra scheduled runs Issue Continuous Integration, Developer Tools 2025-06-02 442
[C++][Parquet] Make error reporting more detailed Issue Parquet, C++ 2025-05-27 448
Consider adding CITATION.cff for citation details Issue Other 2025-05-16 459
[C++] Review arrow/json headers for internal APIs Issue C++ 2025-05-15 460
[C++] Review arrow/csv headers for internal APIs Issue C++ 2025-05-15 460
[C++][Parquet] Review headers for internal APIs Issue Parquet, C++ 2025-05-15 460
[FlightSQL][Docs] Document current state of FlightSQL support Issue FlightRPC, Documentation 2025-05-07 468
[Python] Support pyarrow.Table.cast with CastOptions Issue Python 2025-04-14 491
[Python][C++] Flexible handling of conflicts during JSON type inference Issue C++, Python, Other 2025-04-07 498
[Python] Expose testing data generation utility Issue Python 2025-04-07 498
[C++][Docs] C++ documentation for constructors is missing Issue Documentation 2025-03-19 517
[C++] Statistics Schema Implementation Issue C++, Python, Documentation 2025-03-15 521
[C++][Compute] Add FunctionOptions::Validate Issue C++ 2025-03-13 523
[R] Don’t construct arrow_binary class vector in favor of blob::blob Issue R 2025-03-08 528
[Release][Ruby] Build .gem files as binary artifacts Issue Ruby, Release 2025-02-17 547
[R] creating arrow supported expressions Issue R 2025-02-05 559
[Ruby] Improve JRuby Support Issue Ruby 2025-01-21 574
[R] arrow R package: multiple replacement disclaimers for str_replace_all Issue R 2025-01-20 575
[Parquet][C++] PageIndex is useless with current API Issue Parquet, C++ 2025-01-16 579
[C++][Python] Implement pc.equal for List arguments Issue C++, Python 2025-01-04 591
[Docs] Clean up LICENSE and NOTICE files Issue Documentation 2024-11-28 628
[R] Provide helpful hints for NotImplemented kernel errors Issue R 2024-11-15 641
[C++][Python] Potential improvements around supply chain security Issue C++, Python 2024-11-09 647
[Python] Efficient way to iterate over groups Issue Python 2024-11-07 649
[R] Add Cumsum and duplicated bindings to datasets in R Issue R 2024-11-07 649
[CI][Packaging][Python] Enable BuildKit for building wheel on Windows Issue Python, Continuous Integration, Packaging 2024-11-07 649
[Dev][Archery] Use --arrow-ref instead of --arrow-sha in archery crossbow submit Issue Archery, Developer Tools 2024-10-31 656
[Format][Docs] Describe C device interface on C data interface and C stream interface docs pages Issue Documentation, Format 2024-10-26 661
Misleading error message when casting Issue Python 2024-10-25 662
[CI][C++] Use a separated Docker image for Emscripten Issue C++, Continuous Integration 2024-10-18 669
[CI][C++] Add clang-cl job Issue C++ 2024-10-11 676
[GLib] Add a sub Buffer class for GBytes based buffer Issue GLib 2024-10-09 678
[C++] Binary View Compute Kernels Issue C++ 2024-10-08 679
[R] please write unregister_scalar_function and/or make registration local/temporary Issue R 2024-10-04 683
[Python] Allow PyCapsule Interface in pyarrow.scalar constructor? Issue Python 2024-09-25 692
[R] Support integer date and time classes from data.table Issue R 2024-09-19 698
[C++][Parquet] Add support for arrow::ArrayStatistics Issue Parquet, C++ 2024-08-04 744
[R] Subtracting X days from a given date in ymd format Issue R 2024-08-01 747
[Python] Move tests that are explicitly about conversion to/from numpy on test_array.py to a separate file Issue Python 2024-08-01 747
[R] Implement anonymous functions in calls to dplyr::across Issue R 2024-07-10 769
[CI][Dev] Add shell script formatter Issue Continuous Integration, Developer Tools 2024-06-28 781
[C++] Add support for system mimalloc Issue C++ 2024-06-19 790
[Python] Get size of IPC File ahead of time Issue Python 2024-06-07 802
[Python] Conversion to/from numpy 2.0+ new StringDType Issue Python 2024-06-06 803
[Docs][Format] Move IPC format spec back into a separate page Issue Documentation, Format 2024-05-15 825
[C++][Python] Update DLPack version Issue C++, Python 2024-05-15 825
[C++][Parquet] Predicate pushdown through arrow::dataset::ScanBuilder::Filter() not available on list fields Issue Parquet, C++ 2024-05-14 826
[R] Unable to disable url-encoding Issue R 2024-05-10 830
[Python] Pyarrow fs incorrectly resolves S3 URIs with white space as a local path Issue Python 2024-04-24 846
[CI][Archery] Archery linking should also check for undefined symbols Windows Issue Archery 2024-04-03 867
[CI][Archery] Archery linking should also check for undefined symbols macOS Issue Archery 2024-04-03 867
[CI][Archery] Archery linking should also check for undefined symbols Linux Issue Archery 2024-04-03 867
[Ruby] Improve Ruby’s GC integration Issue Ruby 2024-03-29 872
[Python] Allow pyarrow import to fail without triggering Py_FatalError Issue Python 2024-03-27 874
[Parquet] Make default fallback encoding choice smarter Issue Parquet, C++ 2024-03-18 883
[Python][Docs] Max batch size for Dataset Issue Python, Documentation 2024-03-15 886
[C++] Update vendored FlatBuffers to 24 Issue C++ 2024-03-14 887
[C++] String manipulation on a dictionary column Issue C++ 2024-03-08 893
[Python] Consider splitting _lib module into several parts Issue Python 2024-02-20 910
[Docs] Add a doc section for tensor arrays Issue Documentation 2024-02-08 922
[Python] Implement unification of null dictionaries Issue Python 2024-02-02 928
[R] Export functions for low-level pointer operations Issue R 2024-01-25 936
[R] Update the docs to show how to avoid situations like data loss with leading zero in partition column Issue R 2024-01-17 944
[C++][Python] Floordiv compute kernel Issue C++, Python 2023-12-29 963
[Python] Add timezone information when printing TimestampArray Issue R, Python 2023-12-20 972
[Python] Clean up ExtensionType.__reduce__ Issue Python 2023-12-06 986
[C++][Parquet] Parquet: support exact in Page/Row-Group level Statistics Issue Parquet, C++ 2023-11-23 999
[R] Write metadata to parquet file as argument to write_parquet() Issue R 2023-11-19 1003
[R][Documentation] Document add_filename on open_dataset help page Issue R, Documentation 2023-11-18 1004
[R] preserve hive partitions when opening along a path / path vector Issue R, C++, Python 2023-11-15 1007
[Python] Support serialization of Arrow files on disk without the identifier “Feather” Issue Python 2023-10-30 1023
[R] Inconsistent naming Issue R 2023-10-25 1028
[Integration] Test non-zero offsets in C Data Interface Issue Integration 2023-10-19 1034
[R][Docs] Add section on debugging S3 in the R developer docs Issue R, Documentation 2023-10-14 1039
[R] expose decimal_point argument in CSVConvertOptions Issue R 2023-10-03 1050
[R] open_dataset() behavior with incorrectly quoted input data Issue R 2023-09-27 1056
[C++] Implement REE support in ArrayFromJSONString Issue C++ 2023-08-23 1091
[R] Error passing data to/from DuckDB - “NotImplemented: Call to R (SafeRecordBatchReader::ReadNext()) from a non-R thread from an unsupported context” Issue R 2023-08-22 1092
GH-36831: [C++] DictionaryArray support for MinMax Function PR C++ 2023-08-10 1104
Missing kernels for ordering with struct types Issue Python 2023-08-09 1105
[Python] Convert multidimensional arrays into FixedShapeTensorArrays automatically in pyarrow.array Issue Python 2023-05-17 1189
[C++][Parquet] Process parquet rowgroups without Arrow conversion Issue Parquet, C++, Python 2023-05-17 1189
[R] Error in rawToChar(out) : long vectors not supported yet Issue R 2023-05-01 1205
[C++] Why is arrow mmap marked MAP_PRIVATE (during read)? Issue C++ 2023-04-25 1211
[Python] Bindings for FixedShapeTensorType.FromTensor/ToTensor and FixedShapeTensorArray.strides Issue Python 2023-04-12 1224
[Python][Docs] Update/rearrange Data Types section and add FixedShapeTensorType Issue Python, Documentation 2023-04-12 1224
[R] Add an argument to open_csv_dataset() to repair duplicated column names or ignore them? Issue R 2023-04-07 1229
[Python] unexpected URL encoded path (white spaces) when uploading to S3 Issue Python 2023-04-05 1231
[R][Python] Expand coverage of and align R/Python to C++ CSV WriteOptions Issue R, Python 2023-03-15 1252
[Format][FlightRPC] Transfer FlightData in pieces Issue FlightRPC, Format 2023-03-07 1260
[R] Named lists cannot be serialized to a map column Issue R 2023-03-02 1265
[C++] Create the first binary aggregate function kernel to serve as an example for other implementations Issue C++ 2023-01-30 1296
[R] writing/reading a data.frame with column class ‘list’ changes column class Issue R 2023-01-19 1307
[R] read_csv_arrow()’s timestamp_parsers parameter is a bit light on documentation and doesn’t appear to do anything Issue R 2023-01-16 1310
[C++][Python] Support parsing a StringArray full of JSON to a Table Issue C++, Python 2023-01-13 1313
[R] feather round-trip support for named vectors in list columns Issue R 2022-12-19 1338
[Python] test_get_include failing in conda builds on unix Issue Python, Continuous Integration 2022-12-18 1339
[Release] Changelog.md on master branch has not been updated since 6.0.1 Issue Developer Tools, Release 2022-12-16 1341
[Dev] Comment bot embeds closes comment on code block Issue Developer Tools 2022-12-15 1342
[R] Filter operations not shown when called before summarise Issue R 2022-11-25 1362
[C++] Decide on duplicate column handling in scanner, add more tests Issue C++ 2022-11-22 1365
[R] str_replace with NA does not match stringr behavior Issue R 2022-11-04 1383
[C++] Add a “list_contains” kernel Issue C++ 2022-10-19 1399
[C++][Python] Allow an ExtensionType to register or implement custom casts Issue C++, Python 2022-09-29 1419
[R] Update make_date, make_datetime, ISOdate and ISOdatetime to use tz Issue R 2022-07-12 1498
“Edit this page” on docstring generated docs gives 404 Issue Documentation 2022-06-10 1530
[R] printing data in Table/RecordBatch print method Issue R, Python 2022-06-07 1533
[R] Factor levels cannot contain NA Issue R 2022-06-07 1533
[C++] ParquetFileFragment caches parquet file metadata and there is no way to disable this Issue C++ 2022-05-04 1567
[R] Integer overflow causes error - (in dplyr we get an NA with a warning) Issue R 2022-05-03 1568
[C++] Support hash-join on larger than memory datasets Issue C++ 2022-04-28 1573
[Archery] Add documentation for local development in archery/crossbow Issue Developer Tools 2022-04-12 1589
[Python] Version=7.0.0 introduces bug when filtering by empty set during load Issue Python 2022-03-28 1604
[C++] strptime rolls-over dates not in range for current month Issue R, C++, Python 2022-03-16 1616
[R] Empty JSON object parsed as corrupt data frame Issue R 2022-02-28 1632
[R] Arrow/Parquet can’t open encrypted parquet files Issue R 2022-01-26 1665
[C++][Python] Slicing a table with no columns returns a table with incorrect length. Issue C++, Python 2022-01-22 1669
[Python][Docs] Opening a partitioned dataset with schema and filter Issue Python, Documentation 2022-01-12 1679
[C++] Name the threads in thread pools Issue C++ 2022-01-07 1684
[R] Implement bindings for stringr’s combining strings functions Issue R 2021-11-24 1728
[C++][R]Opening a multi-file dataset and writing a re-partitioned version of it fails Issue R, C++ 2021-11-17 1735
[C++][Dataset] Change scanner readahead limits to be based on bytes instead of number of batches Issue C++ 2021-11-09 1743
[C++][Dataset] Devise a mechanism to limit the total “system ram” (process + cache) used by dataset writes Issue C++ 2021-11-08 1744
[Docs] [Benchmarking] Add conbench to the benchmarking docs Issue Documentation, Benchmarking 2021-11-03 1749
[C++][R] Inconsistent application of type in Datasets via the schema Issue R, C++ 2021-10-14 1769
[R] Selecting colums while reading Parquet file with nested types can give wrong column Issue R 2021-10-11 1772
[R] Support inequality joins Issue R 2021-10-08 1775
[Python] Support other interval types Issue Python 2021-10-07 1776
[R] Empty character attributes not stored Issue R 2021-08-09 1835
[C++][Compute] Add quotient and modulo kernels Issue C++ 2021-05-12 1924
[R] Throw helpful errors on bad object types in dplyr expressions Issue R 2021-03-25 1972
[Python][Dataset] The first table schema becomes a common schema for the full Dataset Issue Python, Documentation 2021-03-24 1973
[R] Support for Tensor class Issue R 2021-02-15 2010
[C++][Dataset] Provide more robust handling of comparison guarantees in the presence of implicit casts Issue C++ 2021-02-08 2017
[R] ChunkedArray$create assumes all chunks are the same type Issue R 2021-01-11 2045
[Ruby] Table#initialize examples are out of date Issue Ruby, Documentation 2020-11-14 2103
[C++][Python] .take silently overflow on list array (when casting to large_list is needed) Issue C++, Python 2020-11-04 2113
[Python] Schema Evolution - Add new Field Issue Python 2020-09-08 2170
[C++][Python] pa.array raises for mixed scalar types (float16 + int) Issue Python 2020-08-21 2188
[Python] Array.__str__ shows misleading output for timestamp types with time zone set Issue C++, Python 2020-07-19 2221
[C++/Python] Kernel for SetItem(IntegerArray, values) (“replace_with_indices”) Issue C++, Python 2020-07-13 2227
[Python] supporting pandas sparse series in pyarrow Issue Python 2020-05-03 2298
[Python][Dataset] Detect and use _metadata file in a list of file paths Issue Python 2020-04-14 2317
[C++][Dataset] Handling of duplicate columns in Dataset factory and scanning Issue C++ 2020-03-25 2337
[Crossbow] Eliminate libgit2 dependency Issue Developer Tools 2020-03-12 2350
[C++][Python] ArrowIOError: Invalid Parquet file size is 0 bytes on reading from S3 Issue C++, Python 2020-02-16 2375
[Python] consistently handle conversion of all-NaN arrays across types Issue Python 2019-09-12 2532
[Python] Array equals returns incorrectly if NaNs are in arrays Issue Python 2019-07-25 2581
[C++] [Documentation] add discussion of Union.typeIds to Layout.rst Issue C++, Documentation 2019-07-12 2594
[C++][Python] Support ExtensionType arrays in more kernels Issue C++ 2019-07-09 2597
[Doc] Better document the Tensor classes in the prose documentation Issue C++, Python, Documentation 2019-07-04 2602
[GLib] Add support for arrow::DictionaryBuilder Issue GLib 2019-03-16 2712
[Python] Add documentation section for integrations with PyTorch, TensorFlow Issue Python, Documentation 2018-02-01 3120
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