apache/arrow

View on GitHub

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 20h
Merged PRs (30d): 94

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

Open All

2147 open issues indexed

[R] impliment dplyr::reframe Open

Component: R Type: enhancement

apache/arrow#35929 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] [Acero] Use-after-free of a MemoryPool that was destroyed at program's exit Open

Component: C++ Type: bug

apache/arrow#35959 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[R] Error using `copy_files()`: "cannot use file ... as a directory" Open

Component: R good-second-issue Priority: Critical Type: bug

apache/arrow#35994 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python][C++] Simplify/Validate PyObject refcount in udf.cc Open

Component: C++ Component: Python Type: bug

apache/arrow#36000 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] [Parquet] StreamWriter should support writing nanosecond timestamps Open

Component: C++ Component: Parquet Type: enhancement

apache/arrow#36005 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[R] read_parquet from s3 is slow and often flakey Open

Component: R Priority: Critical Type: bug

apache/arrow#36007 · 14 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Ruby][Parquet] Implement the bindings of parquet::ReaderProperties Open

Component: Parquet Component: Ruby Type: enhancement

apache/arrow#36010 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
Preserve unit from Pandas timestamp when creating arrow scalar Open

Component: Python Type: enhancement

apache/arrow#36035 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Release] Improve post-11-bump-versions.sh to avoid possible stray commits to reaching main Open

Component: Developer Tools Component: Release Type: enhancement

apache/arrow#36048 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Unexpected Behaviour of nullable fields Open

Component: Python Type: usage

apache/arrow#36060 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python][Release] 12.0.1 has 12.0.0 metadata Open

Component: Packaging Component: Python Component: Release Type: bug

apache/arrow#36065 · 8 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
[Python] Converting date32/64 to pandas using nanoseconds can silently overflow Open

Component: Python Type: bug

apache/arrow#36084 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++][Python] Wrong result when converting time zones after 2038 Open

Component: Python Type: bug

apache/arrow#36110 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python] When I import PyArrow and use Pyright linter CLI, it reports: Stub file not found for "pyarrow" Open

Component: Python Type: usage

apache/arrow#36113 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] uint8_t is not guaranteed to be a valid byte alias Open

Component: C++ Type: bug

apache/arrow#36123 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] INTERVAL_MONTH_DAY_NANO passes the Primitive() type matcher but many kernels do not handle the 128-bit width Open

Component: C++ Type: bug

apache/arrow#36136 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++][Parquet] Allow Truncate min-max Statistics Open

Component: C++ Component: Parquet Type: enhancement

apache/arrow#36139 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
[C++] Improve future as-of-join algorithmic complexity Open

Component: C++ Type: enhancement

apache/arrow#36144 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
`table.group_by([]).aggregate` raises an error on some aggregate functions. Open

Component: C++ Component: Python Type: bug

apache/arrow#36149 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[pyarrow] fixed size binary arrays with nulls consume too much memory Open

Component: Python Type: bug

apache/arrow#36158 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[R] Problem retrieving memory used after gc() using arrow library Open

Component: R Type: bug

apache/arrow#36161 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[python] Missing Compression Codecs in Schema.fbs Open

Component: Documentation Type: bug

apache/arrow#36188 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++][Python] Python to Arrow array conversion sometimes ignores "safe=False" or is using unsafe instead of safe cast Open

Component: C++ Component: Python Type: bug

apache/arrow#36202 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[CI] Refactor docker push steps into a reusable action Open

Component: Continuous Integration Type: enhancement

apache/arrow#36235 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Release] Add performance comparison between Release Candidate and previous release Open

Component: Release Type: enhancement

apache/arrow#36236 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
[C++] Investigate scalar.h usage and reduce cost of function.h include Open

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

apache/arrow#36246 · 23 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] Fix and re-enable Asof Join Backpresure test flakiness Open

Component: C++ Type: enhancement

apache/arrow#36248 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python][FlightRPC] FlightServer get_schema raises an error if it returns a Schema instance, requires a SchemaResult Open

Component: FlightRPC Component: Python Type: bug

apache/arrow#36267 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++] Support Parquet BloomFilter in dataset Open

Component: C++ Type: enhancement

apache/arrow#36268 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[Python] libcurl error on scanning huge dataset using `polars.scan_pyarrow_dataset` Open

Component: Python Type: bug

apache/arrow#36272 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
[Python] Can't convert datetime.date to pa.timestamp in pa.array Open

Component: Python Type: bug

apache/arrow#36277 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python] Add `exclude_invalid_files` to `ParquetDataset` Open

Component: Python Type: enhancement

apache/arrow#36278 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
[Python][Parquet] Allow `write_batch` to directly write batch Open

Component: Parquet Component: Python Type: enhancement

apache/arrow#36280 · 4 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
parquet pushdown predicate dataset.field.isin() much slower than or '|' Open

Component: Python Type: bug

apache/arrow#36283 · 5 comments · 2 reactions · 1 assignee · Indexed Sep 14, 2026
[Python] Stuck in a loop, cannot install pyarrow on Raspberry Pi 4 Open

Component: Packaging Component: Python Type: bug

apache/arrow#36292 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++][FlightRPC] Buffer handling change in 12.0.1 causing a lot of warnings being printed Open

Component: C++ Component: Python Type: bug

apache/arrow#36301 · 12 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python][Parquet] dataset filter doesn't apply correctly when parquet file requires a cast (dataset evolution) Open

Component: Parquet Component: Python Type: bug

apache/arrow#36302 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
PyArrow Write Dataset Memory Consumption - How does it work? Open

Component: Python Type: usage

apache/arrow#36303 · 7 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
[Python] Conversion of numpy array of bytes (dtype='S') ignores length Open

Component: Python Type: bug

apache/arrow#36308 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++][CI] Sporadic failure in TestThreadPool.SubmitWithStopTokenCancelled Open

Component: C++ Component: Continuous Integration Type: bug

apache/arrow#36330 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python][Docs] Provide guidelines for expectations about and how to investigate memory usage Open

Component: Documentation Component: Python

apache/arrow#36378 · 8 comments · 6 reactions · 0 assignees · Indexed Sep 14, 2026
[Python][C++] pyarrow.repeat returns an invalid array when a chunked array is required. Open

Component: Python good-first-issue Type: bug

apache/arrow#36388 · 5 comments · 1 reaction · 1 assignee · Indexed Sep 14, 2026
[Python][Parquet] pq.write_to_dataset crash from numpy Open

Component: Parquet Component: Python Type: bug

apache/arrow#36389 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python][Parquet] Reading a parquet file containing timedeltas fails if it was written out using fastparquet Open

Component: Python Type: bug

apache/arrow#36392 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python] Add missing APIs to Table class Open

Component: Python Type: enhancement

apache/arrow#36398 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python] Add missing APIs to RecordBatch class Open

Component: Python Type: enhancement

apache/arrow#36399 · 5 comments · 2 reactions · 1 assignee · Indexed Sep 14, 2026
[Python][Docs] Document how to use Ninja to build pyarrow with PYARROW_CMAKE_GENERATOR Open

Component: Developer Tools Component: Documentation Component: Python

apache/arrow#36410 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[C++][Python] Wrap / Unwrap Functions for Other PyArrow Objects Open

Component: C++ Component: Python Type: enhancement

apache/arrow#36429 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[C++] We use ThreadPool to read hdfsfile, when the std::thread finished, it call the deadlock! Open

Component: C++ Type: bug

apache/arrow#36432 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Python] Compilation issue (with GCC 11.3.0 on RH8 with Spack) Open

Component: Python installation Type: bug

apache/arrow#36438 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

apache/arrow

Get new issues in your inbox