apache/arrow-go

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Official Go implementation of Apache Arrow

Stars: 406
Forks: 146
Open beginner issues: 0
Indexed issues: 45
Avg merge: 2d 8h
Merged PRs (30d): 93

Dominant language: Assembly
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

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45 open issues indexed

[Compute] String kernels for arrow Open

Type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

apache/arrow-go#1329 · Opened Sep 20, 2026
Reusing ipc.Reader across concatenated streams stopped working in v18.8.0 Open

Type: usage

Difficulty 4/5 3-5 days Newbie friendliness 38/100

apache/arrow-go#1325 · Opened Sep 18, 2026
[Compute] and_kleene / or_kleene return wrong values when ExecCtx.ChunkSize is smaller than the input: ArraySpan.SetSlice carries a stale cached null count into the next slice Open

Difficulty 3/5 1-2 days Newbie friendliness 90/100

apache/arrow-go#1305 · Opened Sep 8, 2026
[Compute] NewDatumWithoutOwning returns an ordinary Datum, so Release() on it frees the caller's array with no error; its doc comment is also truncated Open

good-first-issue Type: enhancement Type: usage

Difficulty 4/5 3-5 days Newbie friendliness 52/100

apache/arrow-go#1298 · 1 comment · Opened Sep 8, 2026
[Compute] The registry holds no aggregate functions (no sum, mean, min_max, count, hash_*), and the package documentation does not say so Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

apache/arrow-go#1296 · 4 comments · Opened Sep 8, 2026
[Flight SQL] Add client-side tests for Substrait prepared statements Open

good-first-issue

Difficulty 3/5 1-2 days Newbie friendliness 76/100

apache/arrow-go#1267 · Opened Aug 29, 2026
[Parquet] Unsigned Variant `typed_value` materializes as an invalid unsigned Parquet shredded column Open

Type: bug

apache/arrow-go#1202 · 2 comments · 1 assignee · Opened Aug 13, 2026
[Dev Tools][CI] Pin protobuf codegen toolchain and verify generated .pb.go files are up to date Open

Type: enhancement

apache/arrow-go#1029 · 3 comments · 1 assignee · Opened Jul 27, 2026
arm64 assembly breaks CPU profiling Open

Type: bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

apache/arrow-go#983 · 3 comments · Opened Jul 22, 2026
Support an experimental Parquet VECTOR repetition type for Arrow FixedSizeList Open

Component: Parquet Type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

apache/arrow-go#855 · Opened Jun 18, 2026
Invitation to provide feedback on New Parquet Encoding: Adaptive Lossless Floating Point Compression Open

Type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

apache/arrow-go#646 · 5 comments · 1 reaction · Opened Jan 25, 2026
[Go][Parquet] Encryption/Decryption failures Open

Type: bug

Difficulty 4/5 3-5 days Newbie friendliness 38/100

apache/arrow-go#566 · 6 comments · Opened Nov 10, 2025
[Go][Parquet] Use custom allocator in ReaderProperties.GetStream Open

Type: enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 42/100

apache/arrow-go#540 · 8 comments · 1 reaction · Opened Oct 22, 2025
Are there any plans to support groupBy functions？ Open

Type: enhancement Type: usage

Difficulty 5/5 Over a week Newbie friendliness 25/100

apache/arrow-go#532 · 1 comment · Opened Oct 8, 2025
compute. CastOptions add option to cast to null value when cast fails Open

Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/arrow-go#463 · 2 comments · Opened Aug 8, 2025
Schema.Equal does not compare schema metadata, but does compare field metadata Open

good-first-issue Type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

apache/arrow-go#454 · 1 comment · Opened Jul 28, 2025
Add Flatten helper for dictionary arrays in Go Arrow compute library Open

good-first-issue Type: enhancement

apache/arrow-go#436 · 1 comment · 1 assignee · Opened Jul 12, 2025
RecordBuilder should confirm non-nullable fields do not contain null rows when building Record Open

Type: bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

apache/arrow-go#372 · 1 comment · Opened May 9, 2025
Learning Curve of the API Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/arrow-go#269 · 11 comments · 8 reactions · Opened Feb 7, 2025
[Parquet] Automatically split batches to prevent overflow Open

Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/arrow-go#211 · Opened Dec 9, 2024
Support protobuf struct type Open

Type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

apache/arrow-go#205 · Opened Nov 26, 2024
[Go] Could you provide a more relevant example about arrow flight client with doput function? Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

apache/arrow-go#143 · Opened Sep 27, 2024
structs: Support casting nullable fields to non-nullable if there are no null values Open

good-first-issue

Difficulty 4/5 3-5 days Newbie friendliness 45/100

apache/arrow-go#133 · 2 comments · 1 reaction · Opened Sep 19, 2024
Migrate Flight and FlightSql Proto Gen Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

apache/arrow-go#89 · 2 comments · Opened Sep 7, 2024
Add benchmark CI: macOS Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

apache/arrow-go#84 · Opened Sep 5, 2024
[Go] Schema inference on `RecordFromJSON` and `TableFromJSON` functions Open

Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/arrow-go#30 · 12 comments · Opened Jul 17, 2024
[Go][Parquet] Support fallback encoding Open

Component: Parquet Type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 72/100

apache/arrow-go#31 · 4 comments · Opened Jul 16, 2024
[Go] Allow adding existing arrays into structs Open

Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/arrow-go#35 · 15 comments · Opened Apr 18, 2024
[Go][Parquet] Looking for Memory-friendly way to seek & extract data from parquet columns Open

Type: usage

Difficulty 5/5 Over a week Newbie friendliness 25/100

apache/arrow-go#38 · 1 comment · Opened Feb 19, 2024
[Go] Estimate physical size of data accumulated in array.Builder Open

Type: usage

Difficulty 5/5 Over a week Newbie friendliness 25/100

apache/arrow-go#42 · Opened Oct 11, 2023
[Go] Replace buffer builders with utilities developed for compute kernels Open

Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/arrow-go#43 · 1 reaction · Opened Oct 10, 2023
[Go] Allow prepending dictionary Open

Type: enhancement

apache/arrow-go#47 · 6 comments · 1 assignee · Opened Sep 4, 2023
[Go] Dictionary compaction Open

Type: enhancement

apache/arrow-go#49 · 6 comments · 1 assignee · Opened Aug 21, 2023
[IPC/Go] Flatbuffers package declared as internal - Useful with custom MessageReaders Open

Type: enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

apache/arrow-go#53 · Opened May 30, 2023
[Go][FlightSQL] Add support for "grpc+tcp", "grpc+unix" and "grpc+tls" schemes in driver Open

good-first-issue Type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 42/100

apache/arrow-go#57 · Opened Apr 12, 2023
[Go] Support for casting to extension types Open

Type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

apache/arrow-go#61 · Opened Apr 7, 2023
[Go] enhancement request to expose AnyValue() on Scalar Open

Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 38/100

apache/arrow-go#67 · 3 comments · Opened Feb 28, 2023
[Go] array.String.Value is unsafe Open

Type: bug

apache/arrow-go#68 · 1 comment · 1 assignee · Opened Feb 2, 2023
[Go][Parquet] reader panics when selectively decrypting columns Open

Component: Parquet Type: bug

Difficulty 5/5 Over a week Newbie friendliness 25/100

apache/arrow-go#69 · 1 comment · Opened Jan 29, 2023
[Go] Support external schema in ipc readers Open

Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 20/100

apache/arrow-go#72 · Opened Jun 25, 2021
[Go] Use Feature enum Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

apache/arrow-go#73 · Opened Jul 3, 2020
[Go][Packaging] Revisit the license file attachment to the go packages Open

Type: enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

apache/arrow-go#74 · 1 comment · Opened Jun 5, 2020
[Go] ipc.Writer Option to skip appending data buffers Open

Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/arrow-go#76 · 3 comments · Opened Aug 2, 2019
[Go] Test fuzzer inputs Open

good-first-issue Type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

apache/arrow-go#77 · 2 comments · Opened Jul 12, 2019
[Go] Optimize memory usage for CSV writer Open

Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/arrow-go#78 · Opened Mar 1, 2019

apache/arrow-go

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