apache/arrow

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Apache Arrow is the universal columnar format and multi-language toolbox for fast data interchange and in-memory analytics

Stars: 17.1k
Forks: 4.3k
Open beginner issues: 0
Indexed issues: 2.2k
Avg merge: 3d 13h
Merged PRs (30d): 88

Dominant language: C++
License: Apache-2.0
Last GitHub push: Sep 12, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

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2160 open issues indexed

[Docs] Document Crossbow builds outside of code Open

Component: Documentation Type: task

apache/arrow#31751 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Simple example arrow script fails on ubuntu:latest docker container Open

Component: Python Type: bug

apache/arrow#31767 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] Support hash-join on larger than memory datasets Open

Component: C++ Status: needs champion Type: enhancement

apache/arrow#31769 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
pd.read_parquet using filters consumes too much memory Open

Component: Python Type: bug

apache/arrow#31771 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[R] Implement lubridate's parsers with hour, minute, and second components Open

Component: R Type: task

apache/arrow#31775 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python] pyarrow dataset API fails to read s3 directory Open

Component: Python Type: bug

apache/arrow#31812 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++][R] strptime fails to parse with %b or %B on Windows Open

Component: C++ Component: R Type: bug

apache/arrow#31816 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] ParquetFileFragment caches parquet file metadata and there is no way to disable this Open

Component: C++ Status: needs champion Type: enhancement

apache/arrow#31824 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python] Some dataset tests using PyFileSystem are failing on Windows Open

Component: Python Type: test

apache/arrow#31832 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] CMake cannot find CUDA toolkit Open

Component: C++ Component: GPU Type: bug

apache/arrow#31833 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] Automatically convert from Substrait options to Arrow options object Open

Component: C++ Type: task

apache/arrow#31849 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++][Flight] Symbol lookup error in tests with conda-forge g++ Open

Component: C++ Component: FlightRPC Type: bug

apache/arrow#20240 · 23 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] Add generic multi-output node Open

Component: C++ Type: task

apache/arrow#31885 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] Temporal floor/ceil/round should have settable origin unit Open

Component: C++ Type: bug

apache/arrow#31896 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet conversion failed,Bool column has NA values in column boolean__v Open

apache/arrow#13125 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python] Reading JSON with explicit schema is ignoring not null constraint Open

apache/arrow#13177 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python] pyarrow.json.read_json ignores nullable=False in explicit_schema parse_options Open

Component: Python Type: bug

apache/arrow#31957 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
An Error Occured While Reading Parquet File Using C++ - GetRecordBatchReader -Corrupt snappy compressed data. Open

apache/arrow#13186 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python] MapArray pandas round trip is broken Open

Component: Python Type: bug

apache/arrow#31965 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet::schema::Node's field_id not being auto-generated Open

apache/arrow#13194 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] An unstable crash may appears when reading table from a json file. Open

Component: C++ Type: bug

apache/arrow#20253 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++][Python] strptime fails to parse with %p on Windows Open

Component: C++ Component: Python Type: bug

apache/arrow#31971 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] IPC: validate batch schema equals stream schema in debug mode Open

Component: C++ Component: FlightRPC Type: bug

apache/arrow#31977 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] Add row-based utilities for encoding a batch and merging row tables Open

Component: C++ Type: task

apache/arrow#31988 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[R][Python] Extension types cannot be registered in both R and Python Open

Component: Python Component: R Type: enhancement

apache/arrow#20265 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++][Parquet][Python] Deprecate engine version Open

Component: C++ Component: Parquet Component: Python Type: task

apache/arrow#32053 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] LocalFileSystem cannot list Linux directory recursively when permission to subdirectory contents are denied Open

Component: C++ good-second-issue Type: bug

apache/arrow#32089 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[R] Factor levels cannot contain NA Open

Component: R Priority: Medium Status: needs champion Type: bug

apache/arrow#32102 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] Arrow Substrait test fails with SIGSEGV, possibly due to gtest 1.11.0 Open

Component: C++ Type: bug

apache/arrow#32103 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] Create Filter Kernel on RLE data Open

Component: C++ Type: task

apache/arrow#32107 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[Python] pyarrow's read_table is way slower than iter_batches Open

Component: Parquet Component: Python Type: bug

apache/arrow#32108 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[R] printing data in Table/RecordBatch print method Open

Component: Python Component: R Status: needs champion Type: enhancement

apache/arrow#32110 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] 32 bit MSVC doesn't build Open

Component: C++ Type: bug

apache/arrow#32111 · 41 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] Complete RunLengthEncoded type Open

Component: C++ Type: task

apache/arrow#32114 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Casting a decimal column of a table into a float type when converting a table into a pandas dataframe Open

apache/arrow#13353 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python] PyArrow: write_dataset - Could not open CSV input source Open

Component: Python Type: bug

apache/arrow#32141 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
"Edit this page" on docstring generated docs gives 404 Open

Component: Documentation Status: needs champion Type: bug

apache/arrow#32143 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
C++ project doesn't need to require Numpy with ARROW_PYTHON=ON because it only builds Python extension's support libraries Open

Component: Python Type: bug

apache/arrow#32150 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
'--record plist' doesn't record a complete plist Open

Component: Python Type: bug

apache/arrow#32151 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python] exitCode: <139> when csv file converting parquet using pandas/pyarrow libraries Open

Component: Parquet Component: Python Type: bug

apache/arrow#32152 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] Investigate performance regressions observed in Unique, VisitArraySpanInline Open

Component: C++ Type: bug

apache/arrow#32166 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python][CSV] CSV reader performs unsafe type conversion Open

Component: Python Type: bug

apache/arrow#32171 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] ArraySpan::IsNull/IsValid implementations are incorrect for union types Open

Component: C++ Type: bug

apache/arrow#32172 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] Adding Project Relation ToProto Open

Type: task

apache/arrow#32182 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] Adding Join Relation ToProto Open

Type: task

apache/arrow#32183 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] Adding Aggregate Relation ToProto Open

Component: C++ Type: task

apache/arrow#32184 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Partition column type is modified after write/read Open

Type: bug

apache/arrow#32191 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[R] Test GCS auth with gargle/googleAuthR Open

Component: R Type: task

apache/arrow#20297 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[R] Bindings for GcsFileSystem FromImpersonatedServiceAccount Open

Component: R good-first-issue Type: task

apache/arrow#32207 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[R] Warning message: In install.packages("arrow") : installation of package ‘arrow’ had non-zero exit status Open

apache/arrow#13425 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

apache/arrow

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