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ARROW-367: converter json <=> Arrow file format for Integration tests #203

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@wesm here is a tool to convert from arrow to json and back as well as validate an arrow file against a json one.

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wesm commented Nov 11, 2016

fantastic, will review today. made good progress yesterday on the JSON file format in C++, so will write an equivalent tool

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wesm reviewed Nov 11, 2016
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+1 LGTM modulo minor comments. We'll be sure to include nulls in the integration test datasets

java/tools/src/main/java/org/apache/arrow/tools/Integration.java
for (int j = 0; j < valueCount; j++) {
Object arrow = arrowVector.getAccessor().getObject(j);
Object json = jsonVector.getAccessor().getObject(j);
if (!Objects.equal(arrow, json)) {
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This works for nested types and nulls?

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yes.
Objects.equals takes care of null.
getObject(index) materializes nested types and lists.

java/tools/src/test/java/org/apache/arrow/tools/ArrowFileTestFixtures.java
public class ArrowFileTestFixtures {
static final int COUNT = 10;

static void writeData(int count, MapVector parent) {
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Come to think of it, many of these test cases could use some null values

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good point

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sorry, I was busy this week, but I will add more tests as suggested.

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wesm commented Nov 17, 2016

+1

@asfgit asfgit closed this in 8417096 Nov 18, 2016
@julienledem julienledem deleted the integration branch April 25, 2017 18:32
wesm pushed a commit to wesm/arrow that referenced this pull request Sep 8, 2018
@wesm
PARQUET-799: Fix bug in MemoryMapSource::CloseFile
7752273 
The key change here is to ensure that munmap is called at most once for
a given memory-mapped file.

Previously, MemoryMapSource::CloseFile was calling munmap on every
invocation (provided that a file had ever been successfully mapped into
memory for that instance). This is problematic in a multi-threaded
environment, even if each MemoryMapSource instance is being used in only
one thread, as illustrated by the following hypothetical sequence of
operations:

thread 1 @ time 1: munmap(0xf000, 4096)
thread 2 @ time 2: void *addr = mmap(NULL, 4096, ...) // addr <- 0xf000
thread 1 @ time 3: munmap(0xf000, 4096)

After time 3, the mapping for the memory segment beginning at 0xf000 has
been invalidated, so the next attempt by thread 2 to access memory
within that segment will likely cause a segfault (unless yet another
thread has mmap'd that segment in the meantime, in which case the
results could be even more interesting, but certainly no better).

Also, I'm adding/modifying a couple comments in header files to mark
"sample" implementations accordingly. This is intended to give API
consumers a heads up as to the intent and level of maturity of those
sections of the codebase.

Author: William Forson <william@gluent.com>

Closes apache#203 from wdforson/master and squashes the following commits:

782713a [William Forson] Adjust 'sample' code comments
7337551 [William Forson] PARQUET-799: Fix bug in MemoryMapSource::CloseFile

Change-Id: I97842390ca33fc007a42069e84f2d160b27627a0
@xrl xrl mentioned this pull request Apr 11, 2019
Closed
4 tasks
nevi-me added a commit that referenced this pull request Sep 14, 2020
@xrl @nevi-me
@bryantbiggs @kou
ARROW-5123: [Rust] Parquet derive for simple structs
90e474d 
A rebase and significant rewrite of sunchao/parquet-rs#197

Big improvement: I now use a more natural nested enum style, it helps break out what patterns of data types are . The rest of the broad strokes still apply.

Goal
===

Writing many columns to a file is a chore. If you can put your values in to a struct which mirrors the schema of your file, this `derive(ParquetRecordWriter)` will write out all the fields, in the order in which they are defined, to a row_group.

How to Use
===

```
extern crate parquet;
#[macro_use] extern crate parquet_derive;

#[derive(ParquetRecordWriter)]
struct ACompleteRecord<'a> {
  pub a_bool: bool,
  pub a_str: &'a str,
}
```

RecordWriter trait
===

This is the new trait which `parquet_derive` will implement for your structs.

```
use super::RowGroupWriter;

pub trait RecordWriter<T> {
  fn write_to_row_group(&self, row_group_writer: &mut Box<RowGroupWriter>);
}
```

How does it work?
===

The `parquet_derive` crate adds code generating functionality to the rust compiler. The code generation takes rust syntax and emits additional syntax. This macro expansion works on rust 1.15+ stable. This is a dynamic plugin, loaded by the machinery in cargo. Users don't have to do any special `build.rs` steps or anything like that, it's automatic by including `parquet_derive` in their project. The `parquet_derive/src/Cargo.toml` has a section saying as much:

```
[lib]
proc-macro = true
```

The rust struct tagged with `#[derive(ParquetRecordWriter)]` is provided to the `parquet_record_writer` function in `parquet_derive/src/lib.rs`. The `syn` crate parses the struct from a string-representation to a AST (a recursive enum value). The AST contains all the values I care about when generating a `RecordWriter` impl:

 - the name of the struct
 - the lifetime variables of the struct
 - the fields of the struct

The fields of the struct are translated from AST to a flat `FieldInfo` struct. It has the bits I care about for writing a column: `field_name`, `field_lifetime`, `field_type`, `is_option`, `column_writer_variant`.

The code then does the equivalent of templating to build the `RecordWriter` implementation. The templating functionality is provided by the `quote` crate. At a high-level the template for `RecordWriter` looks like:

```
impl RecordWriter for $struct_name {
  fn write_row_group(..) {
    $({
      $column_writer_snippet
    })
  }
}
```

this template is then added under the struct definition, ending up something like:

```
struct MyStruct {
}
impl RecordWriter for MyStruct {
  fn write_row_group(..) {
    {
       write_col_1();
    };
   {
       write_col_2();
   }
  }
}
```

and finally _THIS_ is the code passed to rustc. It's just code now, fully expanded and standalone. If a user ever changes their `struct MyValue` definition the `ParquetRecordWriter` will be regenerated. There's no intermediate values to version control or worry about.

Viewing the Derived Code
===

To see the generated code before it's compiled, one very useful bit is to install `cargo expand` [more info on gh](https://github.com/dtolnay/cargo-expand), then you can do:

```
$WORK_DIR/parquet-rs/parquet_derive_test
cargo expand --lib > ../temp.rs
```

then you can dump the contents:

```
struct DumbRecord {
    pub a_bool: bool,
    pub a2_bool: bool,
}
impl RecordWriter<DumbRecord> for &[DumbRecord] {
    fn write_to_row_group(
        &self,
        row_group_writer: &mut Box<parquet::file::writer::RowGroupWriter>,
    ) {
        let mut row_group_writer = row_group_writer;
        {
            let vals: Vec<bool> = self.iter().map(|x| x.a_bool).collect();
            let mut column_writer = row_group_writer.next_column().unwrap().unwrap();
            if let parquet::column::writer::ColumnWriter::BoolColumnWriter(ref mut typed) =
                column_writer
            {
                typed.write_batch(&vals[..], None, None).unwrap();
            }
            row_group_writer.close_column(column_writer).unwrap();
        };
        {
            let vals: Vec<bool> = self.iter().map(|x| x.a2_bool).collect();
            let mut column_writer = row_group_writer.next_column().unwrap().unwrap();
            if let parquet::column::writer::ColumnWriter::BoolColumnWriter(ref mut typed) =
                column_writer
            {
                typed.write_batch(&vals[..], None, None).unwrap();
            }
            row_group_writer.close_column(column_writer).unwrap();
        }
    }
}
```

now I need to write out all the combinations of types we support and make sure it writes out data.

Procedural Macros
===

The `parquet_derive` crate can ONLY export the derivation functionality. No traits, nothing else. The derive crate can not host test cases. It's kind of like a "dummy" crate which is only used by the compiler, never the code.

The parent crate cannot use the derivation functionality, which is important because it means test code cannot be in the parent crate. This forces us to have a third crate, `parquet_derive_test`.

I'm open to being wrong on any one of these finer points. I had to bang on this for a while to get it to compile!

Potentials For Better Design
===

 - [x] Recursion could be limited by generating the code as "snippets" instead of one big `quote!` AST generator. Or so I think. It might be nicer to push generating each columns writing code to another loop.
 - [X] ~~It would be nicer if I didn't have to be so picky about data going in to the `write_batch` function. Is it possible we could make a version of the function which accept `Into<DataType>` or similar? This would greatly simplify this derivation code as it would not need to enumerate all the supported types. Something like `write_generic_batch(&[impl Into<DataType>])` would be neat.~~ (not tackling in this generation of the plugin)
 - [X] ~~Another idea to improving writing columns, could we have a write function for `Iterator`s? I already have a `Vec<DumbRecord>`, if I could just write a mapping for accessing the one value, we could skip the whole intermediate vec for `write_batch`. Should have some significant memory advantages.~~ (not tackling in this generation of the plugin, it's a bigger parquet-rs enhancement)
 - [X] ~~It might be worthwhile to derive a parquet schema directly from a struct definition. That should stamp out opportunities for type errors.~~ (moved to #203)

Status
===

I have successfully integrated this work with my own data exporter (takes postgres/couchdb and outputs a single parquet file).

I think this code is worth including in the project, with the caveat that it only generates simplistic `RecordWriter`s. As people start to use we can add code generation for more complex, nested structs. We can convert the nested matching style to a fancier looping style. But for now, this explicit nesting is easier to debug and understand (to me at least!).

Closes #4140 from xrl/parquet_derive

Lead-authored-by: Xavier Lange <xrlange@gmail.com>
Co-authored-by: Neville Dipale <nevilledips@gmail.com>
Co-authored-by: Bryant Biggs <bryantbiggs@gmail.com>
Co-authored-by: Sutou Kouhei <kou@clear-code.com>
Signed-off-by: Neville Dipale <nevilledips@gmail.com>
@asfimport asfimport mentioned this pull request Sep 14, 2020
Closed
paddyroddy pushed a commit to rok/arrow that referenced this pull request Jul 19, 2025
@dangotbanned
fix: Allow Iterable[Table] in concat_tables (apache#203)
067c042 
https://arrow.apache.org/docs/python/generated/pyarrow.concat_tables.html

> tables : iterable of pyarrow.Table objects
rok added a commit to rok/arrow that referenced this pull request Jul 24, 2025
@paddyroddy @zen-xu
@TallJimbo @tekumara @pre-commit-ci @eltoder @fvankrieken @Flamefork @MTHSBGN @dylanscott @deanm0000 @hmoravec @mariusvniekerk @jonded94 @fabiob @ben-freist @kahojyun @pimdh @dangotbanned @tcrasset @tmct @rok
apacheGH-32609: [Python] Add typing to arrow using stubs (#3)
c15a246 
* Initial commit

* init project

* complete most of the annotations

* fix FixedSizeBufferWriter init annotation

* bump 10.0.1.2

* complete parquet core annotations

* bump 10.0.1.3

* re-export modules

* fix: add return type for foreign_buffer

* fix output_stream and read_message annotations

* ci: add release job

* pre-commit specify flake8 version to 5.0.4

* flake8 ignore F821 for private files

* optimize annotations

* bump 10.0.1.4

* if param supports IOBase, it should also support NativeFile

* bump 10.0.1.5

* pre-commit adds mypy lint

* bump 10.0.1.6

* fix ci name

* Remove version restrictions for Python.

* release 10.0.1.7

* update poetry ci

* Fix stubs for Table factory methods

The main problem was that these were annotated as instance methods rather than static/class methods, but I've added some detail, too.

* update pre-commit

* update

* fix: make fs.FileSystem.from_uri and hdfs.HadoopFileSystem.from_uri as classmethod

* fix: fix read_metadata and read_schema wrong annotations (#11)

* fix: typo S3FileSystem schema -> scheme (#12)

* bump version 10.0.1.8 (#13)

* . (#16)

* make DataType hashable (#22)

* pa.table support recordbatch (#20)

* RecordBatchStreamReader supports next (#18)

* add RecordBatch.to_pylist (#23)

* precise return types for to_pandas (#25)

* bump version 10.0.1.9 (#26)

* [pre-commit.ci] pre-commit autoupdate (#27)

* [pre-commit.ci] pre-commit autoupdate (#28)

* Fix types in FlightDescriptor class (#29)

* Fix types in FlightDescriptor class

* Add argument types

* chore: update pre-commit config (#30)

* build: use `pixi` to manage project (#31)

* chore: add taplo config (#32)

* chore: update LICENSE date (#33)

* doc: add CODE_OF_CONDUCT.md (#34)

* [pre-commit.ci] pre-commit autoupdate (#38)

* [pre-commit.ci] pre-commit autoupdate (#39)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.5.7 → v0.6.1](astral-sh/ruff-pre-commit@v0.5.7...v0.6.1)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* [pre-commit.ci] pre-commit autoupdate (apache#48)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.6.1 → v0.6.2](astral-sh/ruff-pre-commit@v0.6.1...v0.6.2)
- [github.com/pre-commit/mirrors-mypy: v1.11.1 → v1.11.2](pre-commit/mirrors-mypy@v1.11.1...v1.11.2)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* refactor: rewrite type annotations by hand. (#35)

* chore: restart

* update ruff config

* build: add extra dependencies

* update mypy config

* feat: add util.pyi

* feat: add types.pyi

* feat: impl lib.pyi

* update

* feat: add acero.pyi

* feat: add compute.pyi

* add benchmark.pyi

* add cffi

* feat: add csv.pyi

* disable isort single line

* reformat

* update compute.pyi

* add _auzurefs.pyi

* add _cuda.pyi

* add _dataset.pyi

* rename _stub_typing.pyi -> _stubs_typing.pyi

* add _dataset_orc.pyi

* add pyarrow-stubs/_dataset_parquet_encryption.pyi

* add _dataset_parquet.pyi

* add _feather.pyi

* feat: add _flight.pyi

* add _fs.pyi

* add _gcsfs.pyi

* add _hdfs.pyi

* add _json.pyi

* add _orc.pyi

* add _parquet_encryption.pyi

* add _parquet.pyi

* update

* add _parquet.pyi

* add _s3fs.pyi

* add _substrait.pyi

* update

* update

* add parquet/core.pyi

* add parquet/encryption.pyi

* add BufferProtocol

* impl _filesystemdataset_write

* add dataset.pyi

* add feather.pyi

* add flight.pyi

* add fs.pyi

* add gandiva.pyi

* add json.pyi

* add orc.pyi

* add pandas_compat.pyi

* add substrait.pyi

* update util.pyi

* add interchange

* add __lib_pxi

* update __lib_pxi

* update

* update

* add types.pyi

* feat: add scalar.pyi

* update types.pyi

* update types.pyi

* update scalar.pyi

* update

* update

* update

* update

* update

* update

* feat: impl array

* feat: add builder.pyi

* add scipy

* add tensor.pyi

* feat: impl NativeFile

* update io.pyi

* complete io.pyi

* add ipc.pyi

* mv benchmark.pyi into __lib_pxi

* add table.pyi

* do re-export in lib.pyi

* fix io.pyi

* update

* optimize scalar.pyi

* optimize indices

* complete ipc.pyi

* update

* fix NullableIterable

* fix string array

* ignore overload-overlap error

* fix _Tabular.__getitem__

* remove additional_dependencies

* remove check-mypy.sh (apache#49)

* release 20240828 (apache#50)

* fix release tag (apache#51)

* ci: install hatch by pip (apache#52)

* ci: fix hatch keyring (apache#53)

* ci: use Release environment (apache#54)

* remove Scalar generic type var _IsValid (apache#56)

* remove Scalar generic type var _IsValid

* make Array, Scalar, Types generic type var as covariant type (apache#57)

* remove Field generic type var _Nullable (apache#58)

* remove Field generic type var _Nullable

* fix: pa.dictionary and pa.schema annotation (apache#59)

* fix pa.dictionary annotation

* fix: schema annotation

* release new version (apache#60)

* [pre-commit.ci] pre-commit autoupdate (apache#62)

* release: 2024.9.3 (apache#63)

use new date release format %Y.%m.%d

* support pyarrow compute funcs (apache#61)

* update compute.pyi

* impl Aggregation funcs

* impl arithmetic

* imit bit-wise functions

* imit rounding functions

* optimize annotation

* impl logarithmic functions

* update

* impl comparisons funcs

* impl logical funcs

* impl string predicates and transforms

* impl string padding

* impl string trimming

* impl string splitting and component extraction

* impl string joining and slicing

* impl Containment tests

* impl Categorizations

* impl Structural transforms

* impl Conversions

* impl Temporal component extraction

* impl random, Timezone handling

* impl Array-wise functions

* fix timestamp scalar

* support build array with list of scalar (apache#64)

* release 2024.9.4 (apache#65)

* Version follows the version of pyarrow (apache#66)

* import parquet.core into parquet __init__.py (apache#67)

Update __init__.pyi

* release 17.1 (apache#69)

* fix: add missing submodule benchmark, csv and cuda (apache#71)

* release 17.2 (apache#72)

* fix: from_pylist covariance (apache#73)

* [pre-commit.ci] pre-commit autoupdate (apache#74)

* Fix return type for middleware factory's start_call (apache#75)

It can return None if middleware is not needed for a given call.

* release 17.3 (apache#76)

* fix: add missing return type in FlightDescriptor static methods (apache#80)

* Support Tabular filter with Expression (apache#81)

support Tabular filter with Expression

* Support compute functions to accept Expression as parameter (apache#82)

* fix: Fix the return value of Expression comparison (apache#83)

* release 17.4 (apache#84)

* fix: fix the array return type (apache#89)

* a few type improvements, mostly flight related (apache#90)

* FlightError.extra_info -> bytes

* annotate FlightStreamReader.cancel return

* BasicAuth serialize/deserialize

* RecordBatchFileReader.schema

* actually str | bytes

* add_type_to_Field (apache#87)

* add_type_to_Field

* Field.type should return the covariant DataType

---------

Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* Support fsspec.AbstractFileSystem (apache#88)

* supported_filesystem

* fixes

* remove unused import

---------

Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* release 17.5 (apache#91)

* [pre-commit.ci] pre-commit autoupdate (apache#95)

* fix: parquet not accepting NativeFile (apache#98)

* feat: support pa.Buffer buffer protocol (apache#99)

* feat: Support `compute` functions to accept ChunkedArray. (apache#100)

* release 17.6 (apache#101)

* [pre-commit.ci] pre-commit autoupdate (apache#102)

* working towards making return signatures only have one type (mean and exp) (apache#105)

* group_by_returns_TableGroupBy

* return_single_type_for_mean_exp

* revert table.pyi

* compute.mean does not support BinaryScalar or BinaryArray

---------

Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* a table group_by was returing Self but should return TableGroupBy (apache#104)

group_by_returns_TableGroupBy

* [pre-commit.ci] pre-commit autoupdate (apache#106)

updates:
- [github.com/pre-commit/pre-commit-hooks: v4.6.0 → v5.0.0](pre-commit/pre-commit-hooks@v4.6.0...v5.0.0)
- [github.com/astral-sh/ruff-pre-commit: v0.6.7 → v0.6.9](astral-sh/ruff-pre-commit@v0.6.7...v0.6.9)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* fix: RecordBatch missing `from_arrays` and `from_pandas` (apache#108)

* release 17.7 (apache#109)

* fix_combine_chunks (apache#110)

* make Self backward compatible (apache#115)

* fix: update ConvertOptions (apache#114)

* add type property to Array (apache#112)

* add type property to Array

* Array.type should return covariant

---------

Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* release 17.8 (apache#117)

* Add include_columns parameter in ConvertOptions (apache#118)

* add list[str] overload to rename_columns (apache#119)

* release 17.9 (apache#120)

* [pre-commit.ci] pre-commit autoupdate (apache#124)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.6.9 → v0.7.0](astral-sh/ruff-pre-commit@v0.6.9...v0.7.0)
- [github.com/pre-commit/mirrors-mypy: v1.11.2 → v1.12.1](pre-commit/mirrors-mypy@v1.11.2...v1.12.1)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* improve type annotations for parquet writer (apache#125)

Add support for per-field compression specification
Add missing none compression value.

* Add missing return type for Schema.serialize (apache#123)

* Add `Schema.field(int)` (apache#122)

* Change various io related functions to support `StrPath` as a path input (apache#121)

* Change various io related functions to support StrPath as a path input

* fmt

* Added StrPath | IO for feather types

* fix type hint for sort_by (apache#130)

sort_by takes str or list[tuple(name, order)] as its argument where str is a field name not a sort order

* metadata on a schema can be passed as str (apache#128)

For details see https://github.com/apache/arrow/blob/apache-arrow-17.0.0/python/pyarrow/types.pxi\#L2053-L2056

* Correct typevars for DictionaryType, MapType, RunEncodedType (apache#126)

Correct type hints for Dictionary, RunEndEncoded and Map

Signed-off-by: Jonas Dedden <university@jonas-dedden.de>
Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* Add some more StrPath io parts that were overlooked. (apache#131)

* Add some more StrPath io parts that were overlooked.

Additionally, add the utility typealias `SingleOrList` that can be used in places where we want a concise type declaration but the there is a large union of types.

* write_dataset(base_dir = ) can also take Path

* Support ChunkedArray in add/append methods in Table (apache#129)

* Add missing partitioning typing case (apache#132)

This should now support the examples in the docstring for partitioning.

* fix: typo 'permissive' instead of 'premissive' (apache#133)

* release 17.10 (apache#134)

* fix incorrect type hints for compute.sort_indices (apache#135)

* disallow passing `names` as an argument to table when using dictionaries (apache#137)

* [pre-commit.ci] pre-commit autoupdate (apache#138)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.7.0 → v0.7.1](astral-sh/ruff-pre-commit@v0.7.0...v0.7.1)
- [github.com/pre-commit/mirrors-mypy: v1.12.1 → v1.13.0](pre-commit/mirrors-mypy@v1.12.1...v1.13.0)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* Add missing type for FlightEndpoint (apache#136)

* release 17.11 (apache#139)

* [pre-commit.ci] pre-commit autoupdate (apache#140)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.7.1 → v0.7.2](astral-sh/ruff-pre-commit@v0.7.1...v0.7.2)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* [pre-commit.ci] pre-commit autoupdate (apache#142)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.7.2 → v0.7.3](astral-sh/ruff-pre-commit@v0.7.2...v0.7.3)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* chore: Create FUNDING.yml (apache#143)

Create FUNDING.yml

* fix: `read_schema` should return Schema (apache#145)

fix: read_schema should return Schema

* release 17.12 (apache#146)

* [pre-commit.ci] pre-commit autoupdate (apache#147)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.7.3 → v0.7.4](astral-sh/ruff-pre-commit@v0.7.3...v0.7.4)

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* fix: `to_table` argument `columns` can be a dict of expressions (apache#149)

* [pre-commit.ci] pre-commit autoupdate (apache#148)

* [pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.7.4 → v0.8.1](astral-sh/ruff-pre-commit@v0.7.4...v0.8.1)

* ruff: ignore PYI063

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* release 17.13 (apache#151)

* fix: FileSystem metadata value should be str (apache#152)

* fix: FileSystemHandler metadata value should be str (apache#153)

* [pre-commit.ci] pre-commit autoupdate (apache#154)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.8.1 → v0.8.2](astral-sh/ruff-pre-commit@v0.8.1...v0.8.2)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* improve coverage for pyarrow.struct typehint (apache#157)

* fix: ipc typing (apache#159)

* release 17.14 (apache#160)

* fix: add missing param 'nbytes' to NativeFile.read (apache#163)

* release 17.15 (apache#164)

* [pre-commit.ci] pre-commit autoupdate (apache#161)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.8.2 → v0.8.3](astral-sh/ruff-pre-commit@v0.8.2...v0.8.3)

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* Add 'None' as a valid argument for partitioning to the various parquet reading functions (apache#166)

* [pre-commit.ci] pre-commit autoupdate (apache#165)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.8.3 → v0.8.6](astral-sh/ruff-pre-commit@v0.8.3...v0.8.6)
- [github.com/pre-commit/mirrors-mypy: v1.13.0 → v1.14.1](pre-commit/mirrors-mypy@v1.13.0...v1.14.1)

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* fix: should use Collection[Array] instead list[Array] (apache#170)

"List" is invariant -- see https://mypy.readthedocs.io/en/stable/common_issues.html#variance
Consider using "Sequence" instead, which is covariant

* fix: update type hints for path_or_paths and source parameters in ParquetDataset and read_table (apache#171)

* [pre-commit.ci] pre-commit autoupdate (apache#167)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.8.6 → v0.9.1](astral-sh/ruff-pre-commit@v0.8.6...v0.9.1)

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* release 17.16 (apache#172)

* Fixed pa.fixed_shape_tensor (apache#175)

* [pre-commit.ci] pre-commit autoupdate (apache#173)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.9.1 → v0.9.4](astral-sh/ruff-pre-commit@v0.9.1...v0.9.4)

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* fix: Preserve generic in `ChunkedArray.type` (apache#177)

* release 17.17 (apache#178)

* [pre-commit.ci] pre-commit autoupdate (apache#176)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.9.4 → v0.9.6](astral-sh/ruff-pre-commit@v0.9.4...v0.9.6)
- [github.com/pre-commit/mirrors-mypy: v1.14.1 → v1.15.0](pre-commit/mirrors-mypy@v1.14.1...v1.15.0)

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* fix: support to construct ListArray with primitive type (apache#179)

* fix: Avoid `chunked_array` overlapping overloads (apache#183)

* fix: Add placeholder annotations to `pc.if_else` (apache#182)

* fix: Widen `Array` to `Array | ChunkedArray` (apache#181)

* fix: add `pc.fill_null` (apache#185)

- https://arrow.apache.org/docs/python/generated/pyarrow.compute.fill_null.html
- https://github.com/narwhals-dev/narwhals/blob/05e47b27ebe27b24196cee5956d07748d65a62ee/narwhals/_arrow/series.py#L675

* fix: Allow Table.from_arrays to take a list containing a mix of Array and ChunkedArray (apache#187)

Update table.pyi

* release 17.18 (apache#188)

* [pre-commit.ci] pre-commit autoupdate (apache#180)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.9.6 → v0.9.10](astral-sh/ruff-pre-commit@v0.9.6...v0.9.10)

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* fix: from_arrays for both Table and RecordBatch (apache#189)

* fix: resolve some `pa.compute` overlaps (apache#184)

* fix: resolve overlapping `compute.(add|divide)`

* fix: copy from non-cloned signature

* fix: resolve overlapping `compute.exp`

* fix: resolve overlapping `compute.power`

* fix: resolve overlapping `compute.equal`

* fix: resolve overlapping `compute.and_`

* fix: Include `Array` in `chunked_array` overload (apache#190)

narwhals-dev/narwhals@0237f7a

* release 17.19 (apache#191)

* Add Scalar, Array and Type classes for Json & Uuid (apache#194)

* Add Scalar, Array and Type classes for Json & Uuid

* Formatting fixes

* [pre-commit.ci] pre-commit autoupdate (apache#192)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.9.10 → v0.11.2](astral-sh/ruff-pre-commit@v0.9.10...v0.11.2)

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* Revert "Add Scalar, Array and Type classes for Json & Uuid" (apache#195)

Revert "Add Scalar, Array and Type classes for Json & Uuid (apache#194)"

This reverts commit 8f77909.

* fix: Add missing `pc.equal` overload (apache#196)

* feat: support pyarrow 19.0 (apache#198)

* build: upgrade pyarrow min version to 19.0

* feat: support pyarrow 19.0

* omit mypy bool8 override error

* fix: reexport new types (apache#199)

* feat: override new patterns for func repeat and nulls (apache#200)

* fix: reexport decimal64 array and decimal128 array

* feat: override new patterns for func `repeat` and `nulls`

* release: 19.1 (apache#201)

* fix: Allow `Iterable[Table]` in `concat_tables` (apache#203)

https://arrow.apache.org/docs/python/generated/pyarrow.concat_tables.html

> tables : iterable of pyarrow.Table objects

* fix: Allow `ChunkedArray[BooleanScalar]` in `pc.invert` (apache#204)

Fixes https://github.com/narwhals-dev/narwhals/blob/caabc0efdef54f117c83888926860e3972ef69d5/narwhals/_arrow/series.py#L298-L299

* feat: Fully spec `TableGroupBy.aggregate` (apache#197)

## Related
- https://arrow.apache.org/docs/python/compute.html#grouped-aggregations
- https://arrow.apache.org/docs/python/generated/pyarrow.TableGroupBy.html#pyarrow.TableGroupBy.aggregate
- https://github.com/apache/arrow/blob/34a984c842db42b409a1359e6e2cf167a2365a48/python/pyarrow/table.pxi#L6578-L6604

* fix: Add missing return type to `ChunkedArray.filter` (apache#205)

* fix: Add relaxed final overload to logical functions (apache#206)

Covers all of `pc.(and_ | and_kleene | and_not | and_not_kleene | or_ | or_kleene | xor)`

Resolves:
- https://github.com/narwhals-dev/narwhals/blob/caabc0efdef54f117c83888926860e3972ef69d5/narwhals/_arrow/series.py#L219-L233
- https://github.com/narwhals-dev/narwhals/blob/caabc0efdef54f117c83888926860e3972ef69d5/narwhals/_arrow/series.py#L662

* fix: Allow `ChunkedArray` in `Table.set_column` (apache#211)

Also being more consistent with `ArrayOrChunkedArray[Any]` everywhere

Discovered in
- https://github.com/vega/vega-datasets/blob/343b7101391a81190ba24e1e8d62a381d2fef3bd/scripts/species.py#L798-L799

* chore: Ignore `fsspec` `[import-untyped]` (apache#210)

```py
_fs.pyi:18: error: Skipping analyzing "fsspec": module is installed, but missing library stubs or py.typed marker  [import-untyped]
_fs.pyi:18: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports Found 1 error in 1 file (checked 64 source files)
```

- fsspec/filesystem_spec#625
- fsspec/filesystem_spec#1676

* feat: Convert `types.is_*` into `TypeIs` guards (apache#215)

* chore: Add `types.__all__`

* feat: Convert `types._is_*` into `TypeIs` guards

I've been using this for a little while, but makes more sense to live in the stubs
https://github.com/narwhals-dev/narwhals/blob/16427440e6d74939c403083b52ce3fb0af7d63c7/narwhals/_arrow/utils.py#L44-L67

* fix: Resolve `bit_wise_and` overlaps (apache#214)

Fixes 3 errors:
```py
compute.pyi:608:5 - error: Overload 1 for "bit_wise_and" overlaps overload 4 and returns an incompatible type (reportOverlappingOverload) compute.pyi:608:5 - error: Overload 1 for "bit_wise_and" overlaps overload 5 and returns an incompatible type (reportOverlappingOverload) compute.pyi:620:5 - error: Overload 3 for "bit_wise_and" will never be used because its parameters overlap overload 1 (reportOverlappingOverload)
```

* fix: Resolve `list_*` overlapping overloads (apache#213)

* fix: Resolve `list_value_length` overlaps

* fix: Resolve `list_element` overlaps

* fix: Resolve `list_(flatten|slice|parent_indices)` overlaps

An improvement, but still not that accurate

* fix: Include `VarianceOptions` in `TableGroupBy.aggregate` (apache#212)

- Follow-up to apache#197
- Noticed while writing up (narwhals-dev/narwhals#2385)
  - We already use it for `std`, `var` in https://github.com/narwhals-dev/narwhals/blob/16427440e6d74939c403083b52ce3fb0af7d63c7/narwhals/_arrow/group_by.py#L81-L82

* [pre-commit.ci] pre-commit autoupdate (apache#202)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.11.2 → v0.11.5](astral-sh/ruff-pre-commit@v0.11.2...v0.11.5)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* fix: Resolve `Scalar.as_py` warnings for `DictionaryType` (apache#207)

> scalar.pyi:75:20 - warning: TypeVar "_AsPyTypeK" appears only once in generic function signature
>     Use "object" instead (reportInvalidTypeVarUse)
> scalar.pyi:85:20 - warning: TypeVar "_AsPyTypeK" appears only once in generic function signature
>     Use "object" instead (reportInvalidTypeVarUse)

Instead just using `int`, which should be all that is possible from:
https://github.com/zen-xu/pyarrow-stubs/blob/02552b81161d19d4aa71d8656b028eefac84612b/pyarrow-stubs/__lib_pxi/types.pyi#L154-L164

https://github.com/zen-xu/pyarrow-stubs/blob/02552b81161d19d4aa71d8656b028eefac84612b/pyarrow-stubs/__lib_pxi/types.pyi#L63-L70

* fix: Add default to `pc.sort_indices` (apache#216)

* fix: Add default to `pc.sort_indices`

Fixes narwhals-dev/narwhals#2390 (comment)

Default is specified in https://arrow.apache.org/docs/python/generated/pyarrow.compute.sort_indices.html

* refactor: Reuse some aliases

* fix: Allow `list_size` with `Field` in `pa.list_` (apache#218)

Closes apache#217

* allow `Table` or `RecordBatch` for dataset (apache#222)

allow source argument pyarrow.dataset.dataset() to be RecordBatch | Table

* refactor: Simplify `types` overloads (apache#219)

* fix: `binary` overlap

* fix: Simplify list constructors, `_Ordered`

* refactor: Use `_Tz` default

* fix: iter ChunkedArray should return scalar value (apache#224)

* release: 19.2 (apache#225)

* fix: Add missing `DictionaryArray` methods/properties (apache#226)

## Docs
- https://arrow.apache.org/docs/python/generated/pyarrow.DictionaryArray.html#pyarrow.DictionaryArray.dictionary
- https://arrow.apache.org/docs/python/generated/pyarrow.DictionaryArray.html#pyarrow.DictionaryArray.indices
- https://arrow.apache.org/docs/python/generated/pyarrow.DictionaryArray.html#pyarrow.DictionaryArray.dictionary_decode
- https://arrow.apache.org/docs/python/generated/pyarrow.DictionaryArray.html#pyarrow.DictionaryArray.dictionary_encode

## Fixes
- https://github.com/narwhals-dev/narwhals/blob/c23e56c56630761f0fbc58b575a1c987e57d58d5/narwhals/_arrow/series.py#L787-L798
- https://github.com/narwhals-dev/narwhals/blob/c23e56c56630761f0fbc58b575a1c987e57d58d5/narwhals/_arrow/series_cat.py#L14-L18

* chore: use pyright as static type checker (apache#227)

* use pyright as static type checker

* make pyright happy

* fix: fix pyright action (apache#229)

fix github ci

* fix: Match runtime behavior of `(Table|RecordBatch).select` (apache#221)

* fix: Match runtime behavior of `(Table|RecordBatch).select`

## Resolves
- https://github.com/MarcoGorelli/narwhals/blob/5b02b592183b8d39e2d32e0aedd6c234bb22d405/narwhals/_arrow/dataframe.py#L305-L307
- https://github.com/MarcoGorelli/narwhals/blob/5b02b592183b8d39e2d32e0aedd6c234bb22d405/narwhals/_arrow/dataframe.py#L285-L294

##Description
Following up on what I thought was a simple stub issue, but we're both *too strict* and *too permissive* in different ways
##Examples
{placeholder}

##Related
- https://github.com/apache/arrow/blob/d2ddee62329eb711572b4d71d6380673d7f7edd1/python/pyarrow/table.pxi#L4367-L4374
- https://github.com/apache/arrow/blob/d2ddee62329eb711572b4d71d6380673d7f7edd1/python/pyarrow/table.pxi#L1721-L1739

* update select

* update select

---------

Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* [pre-commit.ci] pre-commit autoupdate (apache#220)

updates:
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* feat: narrow scalar when type is given (apache#230)

* rename Uint -> UInt

* feat: narrow scalar when type is given

* release 19.3 (apache#231)

* chore: pyright use strict mode (apache#233)

* fix types

* update array.pyi

* update scalar.pyi

* update

* update array

* update array

* optimize chunked_array

* optimizer iterchunks

* update

* update pyproject.toml

* fix: pa.nulls accept type rather than types (apache#234)

* [pre-commit.ci] pre-commit autoupdate (apache#232)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.11.8 → v0.11.9](astral-sh/ruff-pre-commit@v0.11.8...v0.11.9)

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* release 19.4 (apache#235)

* lint(pyright): disable reportUnknownMemberType (apache#239)

* [pre-commit.ci] pre-commit autoupdate (apache#236)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.11.9 → v0.11.13](astral-sh/ruff-pre-commit@v0.11.9...v0.11.13)
- [github.com/RobertCraigie/pyright-python: v1.1.400 → v1.1.401](RobertCraigie/pyright-python@v1.1.400...v1.1.401)

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* feat: support pyarrow 20.0 (apache#240)

* [pre-commit.ci] pre-commit autoupdate (apache#241)

updates:
- [github.com/RobertCraigie/pyright-python: v1.1.401 → v1.1.402](RobertCraigie/pyright-python@v1.1.401...v1.1.402)

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* support docstring (apache#242)

* doc: complete tensor doc

* doc: complete table doc

* doc: complete scalar doc

* doc: complete orc doc

* doc: complete memory doc

* doc: complete lib doc

* doc: complete json doc

* doc: complete hdfs doc

* doc: complete gcsfs doc

* doc: complete fs doc

* doc: complete flight doc

* doc: complete dataset doc

* doc: complete dataset parquet doc

* doc: complete dataset parquet encryption doc

* doc: complete cuda doc

* doc: complete csv doc

* doc: complete azurefs doc

* doc: complete core doc

* doc: complete interchange doc

* doc: complete array doc

* doc: complete builder doc

* doc: complete device doc

* doc: complete io doc

* doc: complete ipc doc

* doc: complete types doc

* mark deprecated apis

* doc: complete _compute doc

* doc: complete compute doc

* doc: update compute doc

* lint code

* release 20.0.0.20250618 (apache#243)

* fix: make ParquetFileFormat constructor args optional (apache#244)

* fix: Field.remove_metadata should return Self (apache#246)

* [pre-commit.ci] pre-commit autoupdate (apache#245)

updates:
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* release 20.0.0.20250627 (apache#247)

* fix: chunked_array with type should be specified (apache#250)

* [pre-commit.ci] pre-commit autoupdate (apache#248)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.12.0 → v0.12.3](astral-sh/ruff-pre-commit@v0.12.0...v0.12.3)
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* release 20.0.0.20250715 (apache#251)

* fix: The type parameter of array should be covariant (apache#253)

* release 20.0.0.20250716 (apache#254)

* Add py.typed file to signify that the library is typed

See the relevant PEP https://peps.python.org/pep-0561

* Prepare `pyarrow-stubs` for history merging

MINOR: [Python] Prepare `pyarrow-stubs` for history merging

Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* Add `ty` configuration and suppress error codes

* One line per rule

* Add licence header from original repo for all `.pyi` files

* Revert "Add licence header from original repo for all `.pyi` files"

This reverts commit 1631f39.

* Prepare for licence merging

* Exclude `stubs` from `rat` test

* Add Apache licence clause to `py.typed`

* Reduce list

* Resolve merge conflict

---------

Signed-off-by: Jonas Dedden <university@jonas-dedden.de>
Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>
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rok added a commit to rok/arrow that referenced this pull request Jul 24, 2025
@paddyroddy @zen-xu
@TallJimbo @tekumara @pre-commit-ci @eltoder @fvankrieken @Flamefork @MTHSBGN @dylanscott @deanm0000 @hmoravec @mariusvniekerk @jonded94 @fabiob @ben-freist @kahojyun @pimdh @dangotbanned @tcrasset @tmct @rok
apacheGH-32609: [Python] Add typing to arrow using stubs (#3)
7a33cfa 
* Initial commit

* init project

* complete most of the annotations

* fix FixedSizeBufferWriter init annotation

* bump 10.0.1.2

* complete parquet core annotations

* bump 10.0.1.3

* re-export modules

* fix: add return type for foreign_buffer

* fix output_stream and read_message annotations

* ci: add release job

* pre-commit specify flake8 version to 5.0.4

* flake8 ignore F821 for private files

* optimize annotations

* bump 10.0.1.4

* if param supports IOBase, it should also support NativeFile

* bump 10.0.1.5

* pre-commit adds mypy lint

* bump 10.0.1.6

* fix ci name

* Remove version restrictions for Python.

* release 10.0.1.7

* update poetry ci

* Fix stubs for Table factory methods

The main problem was that these were annotated as instance methods rather than static/class methods, but I've added some detail, too.

* update pre-commit

* update

* fix: make fs.FileSystem.from_uri and hdfs.HadoopFileSystem.from_uri as classmethod

* fix: fix read_metadata and read_schema wrong annotations (#11)

* fix: typo S3FileSystem schema -> scheme (#12)

* bump version 10.0.1.8 (#13)

* . (#16)

* make DataType hashable (#22)

* pa.table support recordbatch (#20)

* RecordBatchStreamReader supports next (#18)

* add RecordBatch.to_pylist (#23)

* precise return types for to_pandas (#25)

* bump version 10.0.1.9 (#26)

* [pre-commit.ci] pre-commit autoupdate (#27)

* [pre-commit.ci] pre-commit autoupdate (#28)

* Fix types in FlightDescriptor class (#29)

* Fix types in FlightDescriptor class

* Add argument types

* chore: update pre-commit config (#30)

* build: use `pixi` to manage project (#31)

* chore: add taplo config (#32)

* chore: update LICENSE date (#33)

* doc: add CODE_OF_CONDUCT.md (#34)

* [pre-commit.ci] pre-commit autoupdate (#38)

* [pre-commit.ci] pre-commit autoupdate (#39)

updates:
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* [pre-commit.ci] pre-commit autoupdate (apache#48)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.6.1 → v0.6.2](astral-sh/ruff-pre-commit@v0.6.1...v0.6.2)
- [github.com/pre-commit/mirrors-mypy: v1.11.1 → v1.11.2](pre-commit/mirrors-mypy@v1.11.1...v1.11.2)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* refactor: rewrite type annotations by hand. (#35)

* chore: restart

* update ruff config

* build: add extra dependencies

* update mypy config

* feat: add util.pyi

* feat: add types.pyi

* feat: impl lib.pyi

* update

* feat: add acero.pyi

* feat: add compute.pyi

* add benchmark.pyi

* add cffi

* feat: add csv.pyi

* disable isort single line

* reformat

* update compute.pyi

* add _auzurefs.pyi

* add _cuda.pyi

* add _dataset.pyi

* rename _stub_typing.pyi -> _stubs_typing.pyi

* add _dataset_orc.pyi

* add pyarrow-stubs/_dataset_parquet_encryption.pyi

* add _dataset_parquet.pyi

* add _feather.pyi

* feat: add _flight.pyi

* add _fs.pyi

* add _gcsfs.pyi

* add _hdfs.pyi

* add _json.pyi

* add _orc.pyi

* add _parquet_encryption.pyi

* add _parquet.pyi

* update

* add _parquet.pyi

* add _s3fs.pyi

* add _substrait.pyi

* update

* update

* add parquet/core.pyi

* add parquet/encryption.pyi

* add BufferProtocol

* impl _filesystemdataset_write

* add dataset.pyi

* add feather.pyi

* add flight.pyi

* add fs.pyi

* add gandiva.pyi

* add json.pyi

* add orc.pyi

* add pandas_compat.pyi

* add substrait.pyi

* update util.pyi

* add interchange

* add __lib_pxi

* update __lib_pxi

* update

* update

* add types.pyi

* feat: add scalar.pyi

* update types.pyi

* update types.pyi

* update scalar.pyi

* update

* update

* update

* update

* update

* update

* feat: impl array

* feat: add builder.pyi

* add scipy

* add tensor.pyi

* feat: impl NativeFile

* update io.pyi

* complete io.pyi

* add ipc.pyi

* mv benchmark.pyi into __lib_pxi

* add table.pyi

* do re-export in lib.pyi

* fix io.pyi

* update

* optimize scalar.pyi

* optimize indices

* complete ipc.pyi

* update

* fix NullableIterable

* fix string array

* ignore overload-overlap error

* fix _Tabular.__getitem__

* remove additional_dependencies

* remove check-mypy.sh (apache#49)

* release 20240828 (apache#50)

* fix release tag (apache#51)

* ci: install hatch by pip (apache#52)

* ci: fix hatch keyring (apache#53)

* ci: use Release environment (apache#54)

* remove Scalar generic type var _IsValid (apache#56)

* remove Scalar generic type var _IsValid

* make Array, Scalar, Types generic type var as covariant type (apache#57)

* remove Field generic type var _Nullable (apache#58)

* remove Field generic type var _Nullable

* fix: pa.dictionary and pa.schema annotation (apache#59)

* fix pa.dictionary annotation

* fix: schema annotation

* release new version (apache#60)

* [pre-commit.ci] pre-commit autoupdate (apache#62)

* release: 2024.9.3 (apache#63)

use new date release format %Y.%m.%d

* support pyarrow compute funcs (apache#61)

* update compute.pyi

* impl Aggregation funcs

* impl arithmetic

* imit bit-wise functions

* imit rounding functions

* optimize annotation

* impl logarithmic functions

* update

* impl comparisons funcs

* impl logical funcs

* impl string predicates and transforms

* impl string padding

* impl string trimming

* impl string splitting and component extraction

* impl string joining and slicing

* impl Containment tests

* impl Categorizations

* impl Structural transforms

* impl Conversions

* impl Temporal component extraction

* impl random, Timezone handling

* impl Array-wise functions

* fix timestamp scalar

* support build array with list of scalar (apache#64)

* release 2024.9.4 (apache#65)

* Version follows the version of pyarrow (apache#66)

* import parquet.core into parquet __init__.py (apache#67)

Update __init__.pyi

* release 17.1 (apache#69)

* fix: add missing submodule benchmark, csv and cuda (apache#71)

* release 17.2 (apache#72)

* fix: from_pylist covariance (apache#73)

* [pre-commit.ci] pre-commit autoupdate (apache#74)

* Fix return type for middleware factory's start_call (apache#75)

It can return None if middleware is not needed for a given call.

* release 17.3 (apache#76)

* fix: add missing return type in FlightDescriptor static methods (apache#80)

* Support Tabular filter with Expression (apache#81)

support Tabular filter with Expression

* Support compute functions to accept Expression as parameter (apache#82)

* fix: Fix the return value of Expression comparison (apache#83)

* release 17.4 (apache#84)

* fix: fix the array return type (apache#89)

* a few type improvements, mostly flight related (apache#90)

* FlightError.extra_info -> bytes

* annotate FlightStreamReader.cancel return

* BasicAuth serialize/deserialize

* RecordBatchFileReader.schema

* actually str | bytes

* add_type_to_Field (apache#87)

* add_type_to_Field

* Field.type should return the covariant DataType

---------

Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* Support fsspec.AbstractFileSystem (apache#88)

* supported_filesystem

* fixes

* remove unused import

---------

Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* release 17.5 (apache#91)

* [pre-commit.ci] pre-commit autoupdate (apache#95)

* fix: parquet not accepting NativeFile (apache#98)

* feat: support pa.Buffer buffer protocol (apache#99)

* feat: Support `compute` functions to accept ChunkedArray. (apache#100)

* release 17.6 (apache#101)

* [pre-commit.ci] pre-commit autoupdate (apache#102)

* working towards making return signatures only have one type (mean and exp) (apache#105)

* group_by_returns_TableGroupBy

* return_single_type_for_mean_exp

* revert table.pyi

* compute.mean does not support BinaryScalar or BinaryArray

---------

Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* a table group_by was returing Self but should return TableGroupBy (apache#104)

group_by_returns_TableGroupBy

* [pre-commit.ci] pre-commit autoupdate (apache#106)

updates:
- [github.com/pre-commit/pre-commit-hooks: v4.6.0 → v5.0.0](pre-commit/pre-commit-hooks@v4.6.0...v5.0.0)
- [github.com/astral-sh/ruff-pre-commit: v0.6.7 → v0.6.9](astral-sh/ruff-pre-commit@v0.6.7...v0.6.9)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* fix: RecordBatch missing `from_arrays` and `from_pandas` (apache#108)

* release 17.7 (apache#109)

* fix_combine_chunks (apache#110)

* make Self backward compatible (apache#115)

* fix: update ConvertOptions (apache#114)

* add type property to Array (apache#112)

* add type property to Array

* Array.type should return covariant

---------

Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* release 17.8 (apache#117)

* Add include_columns parameter in ConvertOptions (apache#118)

* add list[str] overload to rename_columns (apache#119)

* release 17.9 (apache#120)

* [pre-commit.ci] pre-commit autoupdate (apache#124)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.6.9 → v0.7.0](astral-sh/ruff-pre-commit@v0.6.9...v0.7.0)
- [github.com/pre-commit/mirrors-mypy: v1.11.2 → v1.12.1](pre-commit/mirrors-mypy@v1.11.2...v1.12.1)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* improve type annotations for parquet writer (apache#125)

Add support for per-field compression specification
Add missing none compression value.

* Add missing return type for Schema.serialize (apache#123)

* Add `Schema.field(int)` (apache#122)

* Change various io related functions to support `StrPath` as a path input (apache#121)

* Change various io related functions to support StrPath as a path input

* fmt

* Added StrPath | IO for feather types

* fix type hint for sort_by (apache#130)

sort_by takes str or list[tuple(name, order)] as its argument where str is a field name not a sort order

* metadata on a schema can be passed as str (apache#128)

For details see https://github.com/apache/arrow/blob/apache-arrow-17.0.0/python/pyarrow/types.pxi\#L2053-L2056

* Correct typevars for DictionaryType, MapType, RunEncodedType (apache#126)

Correct type hints for Dictionary, RunEndEncoded and Map

Signed-off-by: Jonas Dedden <university@jonas-dedden.de>
Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* Add some more StrPath io parts that were overlooked. (apache#131)

* Add some more StrPath io parts that were overlooked.

Additionally, add the utility typealias `SingleOrList` that can be used in places where we want a concise type declaration but the there is a large union of types.

* write_dataset(base_dir = ) can also take Path

* Support ChunkedArray in add/append methods in Table (apache#129)

* Add missing partitioning typing case (apache#132)

This should now support the examples in the docstring for partitioning.

* fix: typo 'permissive' instead of 'premissive' (apache#133)

* release 17.10 (apache#134)

* fix incorrect type hints for compute.sort_indices (apache#135)

* disallow passing `names` as an argument to table when using dictionaries (apache#137)

* [pre-commit.ci] pre-commit autoupdate (apache#138)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.7.0 → v0.7.1](astral-sh/ruff-pre-commit@v0.7.0...v0.7.1)
- [github.com/pre-commit/mirrors-mypy: v1.12.1 → v1.13.0](pre-commit/mirrors-mypy@v1.12.1...v1.13.0)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* Add missing type for FlightEndpoint (apache#136)

* release 17.11 (apache#139)

* [pre-commit.ci] pre-commit autoupdate (apache#140)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.7.1 → v0.7.2](astral-sh/ruff-pre-commit@v0.7.1...v0.7.2)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* [pre-commit.ci] pre-commit autoupdate (apache#142)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.7.2 → v0.7.3](astral-sh/ruff-pre-commit@v0.7.2...v0.7.3)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* chore: Create FUNDING.yml (apache#143)

Create FUNDING.yml

* fix: `read_schema` should return Schema (apache#145)

fix: read_schema should return Schema

* release 17.12 (apache#146)

* [pre-commit.ci] pre-commit autoupdate (apache#147)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.7.3 → v0.7.4](astral-sh/ruff-pre-commit@v0.7.3...v0.7.4)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* fix: `to_table` argument `columns` can be a dict of expressions (apache#149)

* [pre-commit.ci] pre-commit autoupdate (apache#148)

* [pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.7.4 → v0.8.1](astral-sh/ruff-pre-commit@v0.7.4...v0.8.1)

* ruff: ignore PYI063

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* release 17.13 (apache#151)

* fix: FileSystem metadata value should be str (apache#152)

* fix: FileSystemHandler metadata value should be str (apache#153)

* [pre-commit.ci] pre-commit autoupdate (apache#154)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.8.1 → v0.8.2](astral-sh/ruff-pre-commit@v0.8.1...v0.8.2)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* improve coverage for pyarrow.struct typehint (apache#157)

* fix: ipc typing (apache#159)

* release 17.14 (apache#160)

* fix: add missing param 'nbytes' to NativeFile.read (apache#163)

* release 17.15 (apache#164)

* [pre-commit.ci] pre-commit autoupdate (apache#161)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.8.2 → v0.8.3](astral-sh/ruff-pre-commit@v0.8.2...v0.8.3)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* Add 'None' as a valid argument for partitioning to the various parquet reading functions (apache#166)

* [pre-commit.ci] pre-commit autoupdate (apache#165)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.8.3 → v0.8.6](astral-sh/ruff-pre-commit@v0.8.3...v0.8.6)
- [github.com/pre-commit/mirrors-mypy: v1.13.0 → v1.14.1](pre-commit/mirrors-mypy@v1.13.0...v1.14.1)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* fix: should use Collection[Array] instead list[Array] (apache#170)

"List" is invariant -- see https://mypy.readthedocs.io/en/stable/common_issues.html#variance
Consider using "Sequence" instead, which is covariant

* fix: update type hints for path_or_paths and source parameters in ParquetDataset and read_table (apache#171)

* [pre-commit.ci] pre-commit autoupdate (apache#167)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.8.6 → v0.9.1](astral-sh/ruff-pre-commit@v0.8.6...v0.9.1)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* release 17.16 (apache#172)

* Fixed pa.fixed_shape_tensor (apache#175)

* [pre-commit.ci] pre-commit autoupdate (apache#173)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.9.1 → v0.9.4](astral-sh/ruff-pre-commit@v0.9.1...v0.9.4)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* fix: Preserve generic in `ChunkedArray.type` (apache#177)

* release 17.17 (apache#178)

* [pre-commit.ci] pre-commit autoupdate (apache#176)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.9.4 → v0.9.6](astral-sh/ruff-pre-commit@v0.9.4...v0.9.6)
- [github.com/pre-commit/mirrors-mypy: v1.14.1 → v1.15.0](pre-commit/mirrors-mypy@v1.14.1...v1.15.0)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* fix: support to construct ListArray with primitive type (apache#179)

* fix: Avoid `chunked_array` overlapping overloads (apache#183)

* fix: Add placeholder annotations to `pc.if_else` (apache#182)

* fix: Widen `Array` to `Array | ChunkedArray` (apache#181)

* fix: add `pc.fill_null` (apache#185)

- https://arrow.apache.org/docs/python/generated/pyarrow.compute.fill_null.html
- https://github.com/narwhals-dev/narwhals/blob/05e47b27ebe27b24196cee5956d07748d65a62ee/narwhals/_arrow/series.py#L675

* fix: Allow Table.from_arrays to take a list containing a mix of Array and ChunkedArray (apache#187)

Update table.pyi

* release 17.18 (apache#188)

* [pre-commit.ci] pre-commit autoupdate (apache#180)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.9.6 → v0.9.10](astral-sh/ruff-pre-commit@v0.9.6...v0.9.10)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* fix: from_arrays for both Table and RecordBatch (apache#189)

* fix: resolve some `pa.compute` overlaps (apache#184)

* fix: resolve overlapping `compute.(add|divide)`

* fix: copy from non-cloned signature

* fix: resolve overlapping `compute.exp`

* fix: resolve overlapping `compute.power`

* fix: resolve overlapping `compute.equal`

* fix: resolve overlapping `compute.and_`

* fix: Include `Array` in `chunked_array` overload (apache#190)

narwhals-dev/narwhals@0237f7a

* release 17.19 (apache#191)

* Add Scalar, Array and Type classes for Json & Uuid (apache#194)

* Add Scalar, Array and Type classes for Json & Uuid

* Formatting fixes

* [pre-commit.ci] pre-commit autoupdate (apache#192)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.9.10 → v0.11.2](astral-sh/ruff-pre-commit@v0.9.10...v0.11.2)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* Revert "Add Scalar, Array and Type classes for Json & Uuid" (apache#195)

Revert "Add Scalar, Array and Type classes for Json & Uuid (apache#194)"

* fix: Add missing `pc.equal` overload (apache#196)

* feat: support pyarrow 19.0 (apache#198)

* build: upgrade pyarrow min version to 19.0

* feat: support pyarrow 19.0

* omit mypy bool8 override error

* fix: reexport new types (apache#199)

* feat: override new patterns for func repeat and nulls (apache#200)

* fix: reexport decimal64 array and decimal128 array

* feat: override new patterns for func `repeat` and `nulls`

* release: 19.1 (apache#201)

* fix: Allow `Iterable[Table]` in `concat_tables` (apache#203)

https://arrow.apache.org/docs/python/generated/pyarrow.concat_tables.html

> tables : iterable of pyarrow.Table objects

* fix: Allow `ChunkedArray[BooleanScalar]` in `pc.invert` (apache#204)

Fixes https://github.com/narwhals-dev/narwhals/blob/caabc0efdef54f117c83888926860e3972ef69d5/narwhals/_arrow/series.py#L298-L299

* feat: Fully spec `TableGroupBy.aggregate` (apache#197)

- https://arrow.apache.org/docs/python/compute.html#grouped-aggregations
- https://arrow.apache.org/docs/python/generated/pyarrow.TableGroupBy.html#pyarrow.TableGroupBy.aggregate
- https://github.com/apache/arrow/blob/34a984c842db42b409a1359e6e2cf167a2365a48/python/pyarrow/table.pxi#L6578-L6604

* fix: Add missing return type to `ChunkedArray.filter` (apache#205)

* fix: Add relaxed final overload to logical functions (apache#206)

Covers all of `pc.(and_ | and_kleene | and_not | and_not_kleene | or_ | or_kleene | xor)`

Resolves:
- https://github.com/narwhals-dev/narwhals/blob/caabc0efdef54f117c83888926860e3972ef69d5/narwhals/_arrow/series.py#L219-L233
- https://github.com/narwhals-dev/narwhals/blob/caabc0efdef54f117c83888926860e3972ef69d5/narwhals/_arrow/series.py#L662

* fix: Allow `ChunkedArray` in `Table.set_column` (apache#211)

Also being more consistent with `ArrayOrChunkedArray[Any]` everywhere

Discovered in
- https://github.com/vega/vega-datasets/blob/343b7101391a81190ba24e1e8d62a381d2fef3bd/scripts/species.py#L798-L799

* chore: Ignore `fsspec` `[import-untyped]` (apache#210)

```py
_fs.pyi:18: error: Skipping analyzing "fsspec": module is installed, but missing library stubs or py.typed marker  [import-untyped]
_fs.pyi:18: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports Found 1 error in 1 file (checked 64 source files)
```

- fsspec/filesystem_spec#625
- fsspec/filesystem_spec#1676

* feat: Convert `types.is_*` into `TypeIs` guards (apache#215)

* chore: Add `types.__all__`

* feat: Convert `types._is_*` into `TypeIs` guards

I've been using this for a little while, but makes more sense to live in the stubs
https://github.com/narwhals-dev/narwhals/blob/16427440e6d74939c403083b52ce3fb0af7d63c7/narwhals/_arrow/utils.py#L44-L67

* fix: Resolve `bit_wise_and` overlaps (apache#214)

Fixes 3 errors:
```py
compute.pyi:608:5 - error: Overload 1 for "bit_wise_and" overlaps overload 4 and returns an incompatible type (reportOverlappingOverload) compute.pyi:608:5 - error: Overload 1 for "bit_wise_and" overlaps overload 5 and returns an incompatible type (reportOverlappingOverload) compute.pyi:620:5 - error: Overload 3 for "bit_wise_and" will never be used because its parameters overlap overload 1 (reportOverlappingOverload)
```

* fix: Resolve `list_*` overlapping overloads (apache#213)

* fix: Resolve `list_value_length` overlaps

* fix: Resolve `list_element` overlaps

* fix: Resolve `list_(flatten|slice|parent_indices)` overlaps

An improvement, but still not that accurate

* fix: Include `VarianceOptions` in `TableGroupBy.aggregate` (apache#212)

- Follow-up to apache#197
- Noticed while writing up (narwhals-dev/narwhals#2385)
  - We already use it for `std`, `var` in https://github.com/narwhals-dev/narwhals/blob/16427440e6d74939c403083b52ce3fb0af7d63c7/narwhals/_arrow/group_by.py#L81-L82

* [pre-commit.ci] pre-commit autoupdate (apache#202)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.11.2 → v0.11.5](astral-sh/ruff-pre-commit@v0.11.2...v0.11.5)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* fix: Resolve `Scalar.as_py` warnings for `DictionaryType` (apache#207)

> scalar.pyi:75:20 - warning: TypeVar "_AsPyTypeK" appears only once in generic function signature
>     Use "object" instead (reportInvalidTypeVarUse)
> scalar.pyi:85:20 - warning: TypeVar "_AsPyTypeK" appears only once in generic function signature
>     Use "object" instead (reportInvalidTypeVarUse)

Instead just using `int`, which should be all that is possible from:
https://github.com/zen-xu/pyarrow-stubs/blob/02552b81161d19d4aa71d8656b028eefac84612b/pyarrow-stubs/__lib_pxi/types.pyi#L154-L164

https://github.com/zen-xu/pyarrow-stubs/blob/02552b81161d19d4aa71d8656b028eefac84612b/pyarrow-stubs/__lib_pxi/types.pyi#L63-L70

* fix: Add default to `pc.sort_indices` (apache#216)

* fix: Add default to `pc.sort_indices`

Fixes narwhals-dev/narwhals#2390 (comment)

Default is specified in https://arrow.apache.org/docs/python/generated/pyarrow.compute.sort_indices.html

* refactor: Reuse some aliases

* fix: Allow `list_size` with `Field` in `pa.list_` (apache#218)

Closes apache#217

* allow `Table` or `RecordBatch` for dataset (apache#222)

allow source argument pyarrow.dataset.dataset() to be RecordBatch | Table

* refactor: Simplify `types` overloads (apache#219)

* fix: `binary` overlap

* fix: Simplify list constructors, `_Ordered`

* refactor: Use `_Tz` default

* fix: iter ChunkedArray should return scalar value (apache#224)

* release: 19.2 (apache#225)

* fix: Add missing `DictionaryArray` methods/properties (apache#226)

- https://arrow.apache.org/docs/python/generated/pyarrow.DictionaryArray.html#pyarrow.DictionaryArray.dictionary
- https://arrow.apache.org/docs/python/generated/pyarrow.DictionaryArray.html#pyarrow.DictionaryArray.indices
- https://arrow.apache.org/docs/python/generated/pyarrow.DictionaryArray.html#pyarrow.DictionaryArray.dictionary_decode
- https://arrow.apache.org/docs/python/generated/pyarrow.DictionaryArray.html#pyarrow.DictionaryArray.dictionary_encode

- https://github.com/narwhals-dev/narwhals/blob/c23e56c56630761f0fbc58b575a1c987e57d58d5/narwhals/_arrow/series.py#L787-L798
- https://github.com/narwhals-dev/narwhals/blob/c23e56c56630761f0fbc58b575a1c987e57d58d5/narwhals/_arrow/series_cat.py#L14-L18

* chore: use pyright as static type checker (apache#227)

* use pyright as static type checker

* make pyright happy

* fix: fix pyright action (apache#229)

fix github ci

* fix: Match runtime behavior of `(Table|RecordBatch).select` (apache#221)

* fix: Match runtime behavior of `(Table|RecordBatch).select`

- https://github.com/MarcoGorelli/narwhals/blob/5b02b592183b8d39e2d32e0aedd6c234bb22d405/narwhals/_arrow/dataframe.py#L305-L307
- https://github.com/MarcoGorelli/narwhals/blob/5b02b592183b8d39e2d32e0aedd6c234bb22d405/narwhals/_arrow/dataframe.py#L285-L294

Following up on what I thought was a simple stub issue, but we're both *too strict* and *too permissive* in different ways
{placeholder}

- https://github.com/apache/arrow/blob/d2ddee62329eb711572b4d71d6380673d7f7edd1/python/pyarrow/table.pxi#L4367-L4374
- https://github.com/apache/arrow/blob/d2ddee62329eb711572b4d71d6380673d7f7edd1/python/pyarrow/table.pxi#L1721-L1739

* update select

* update select

---------

Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* [pre-commit.ci] pre-commit autoupdate (apache#220)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.11.5 → v0.11.8](astral-sh/ruff-pre-commit@v0.11.5...v0.11.8)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* feat: narrow scalar when type is given (apache#230)

* rename Uint -> UInt

* feat: narrow scalar when type is given

* release 19.3 (apache#231)

* chore: pyright use strict mode (apache#233)

* fix types

* update array.pyi

* update scalar.pyi

* update

* update array

* update array

* optimize chunked_array

* optimizer iterchunks

* update

* update pyproject.toml

* fix: pa.nulls accept type rather than types (apache#234)

* [pre-commit.ci] pre-commit autoupdate (apache#232)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.11.8 → v0.11.9](astral-sh/ruff-pre-commit@v0.11.8...v0.11.9)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* release 19.4 (apache#235)

* lint(pyright): disable reportUnknownMemberType (apache#239)

* [pre-commit.ci] pre-commit autoupdate (apache#236)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.11.9 → v0.11.13](astral-sh/ruff-pre-commit@v0.11.9...v0.11.13)
- [github.com/RobertCraigie/pyright-python: v1.1.400 → v1.1.401](RobertCraigie/pyright-python@v1.1.400...v1.1.401)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* feat: support pyarrow 20.0 (apache#240)

* [pre-commit.ci] pre-commit autoupdate (apache#241)

updates:
- [github.com/RobertCraigie/pyright-python: v1.1.401 → v1.1.402](RobertCraigie/pyright-python@v1.1.401...v1.1.402)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* support docstring (apache#242)

* doc: complete tensor doc

* doc: complete table doc

* doc: complete scalar doc

* doc: complete orc doc

* doc: complete memory doc

* doc: complete lib doc

* doc: complete json doc

* doc: complete hdfs doc

* doc: complete gcsfs doc

* doc: complete fs doc

* doc: complete flight doc

* doc: complete dataset doc

* doc: complete dataset parquet doc

* doc: complete dataset parquet encryption doc

* doc: complete cuda doc

* doc: complete csv doc

* doc: complete azurefs doc

* doc: complete core doc

* doc: complete interchange doc

* doc: complete array doc

* doc: complete builder doc

* doc: complete device doc

* doc: complete io doc

* doc: complete ipc doc

* doc: complete types doc

* mark deprecated apis

* doc: complete _compute doc

* doc: complete compute doc

* doc: update compute doc

* lint code

* release 20.0.0.20250618 (apache#243)

* fix: make ParquetFileFormat constructor args optional (apache#244)

* fix: Field.remove_metadata should return Self (apache#246)

* [pre-commit.ci] pre-commit autoupdate (apache#245)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.11.13 → v0.12.0](astral-sh/ruff-pre-commit@v0.11.13...v0.12.0)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* release 20.0.0.20250627 (apache#247)

* fix: chunked_array with type should be specified (apache#250)

* [pre-commit.ci] pre-commit autoupdate (apache#248)

updates:
- [github.com/astral-sh/ruff-pre-commit: v0.12.0 → v0.12.3](astral-sh/ruff-pre-commit@v0.12.0...v0.12.3)
- [github.com/RobertCraigie/pyright-python: v1.1.402 → v1.1.403](RobertCraigie/pyright-python@v1.1.402...v1.1.403)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

* release 20.0.0.20250715 (apache#251)

* fix: The type parameter of array should be covariant (apache#253)

* release 20.0.0.20250716 (apache#254)

* Add py.typed file to signify that the library is typed

See the relevant PEP https://peps.python.org/pep-0561

* Prepare `pyarrow-stubs` for history merging

MINOR: [Python] Prepare `pyarrow-stubs` for history merging

Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>

* Add `ty` configuration and suppress error codes

* One line per rule

* Add licence header from original repo for all `.pyi` files

* Revert "Add licence header from original repo for all `.pyi` files"

* Prepare for licence merging

* Exclude `stubs` from `rat` test

* Add Apache licence clause to `py.typed`

* Reduce list

* Resolve merge conflict

---------

Signed-off-by: Jonas Dedden <university@jonas-dedden.de>
Co-authored-by: ZhengYu, Xu <zen-xu@outlook.com>
Co-authored-by: Jim Bosch <talljimbo@gmail.com>
Co-authored-by: Oliver Mannion <125105+tekumara@users.noreply.github.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Eugene Toder <eltoder@users.noreply.github.com>
Co-authored-by: fvankrieken <fvankrieken@planning.nyc.gov>
Co-authored-by: Ilia Ablamonov <ilia@flamefork.ru>
Co-authored-by: Mathias Beguin <mathias.beguin@hotmail.com>
Co-authored-by: Dylan Scott <dylan.scott@gmail.com>
Co-authored-by: deanm0000 <37878412+deanm0000@users.noreply.github.com>
Co-authored-by: Jan Moravec <moravecj@post.cz>
Co-authored-by: Marius van Niekerk <marius.v.niekerk@gmail.com>
Co-authored-by: Jonas Dedden <university@jonas-dedden.de>
Co-authored-by: Fábio D. Batista <fabio@atelie.dev.br>
Co-authored-by: ben-freist <93315290+ben-freist@users.noreply.github.com>
Co-authored-by: Jiahao Yuan <kahojyun@icloud.com>
Co-authored-by: Pim de Haan <pimdehaan@gmail.com>
Co-authored-by: Dan Redding <125183946+dangotbanned@users.noreply.github.com>
Co-authored-by: Tom Crasset <25140344+tcrasset@users.noreply.github.com>
Co-authored-by: Tom McTiernan <tmct@users.noreply.github.com>
Co-authored-by: Rok Mihevc <rok@mihevc.org>
pribor pushed a commit to GlobalWebIndex/arrow that referenced this pull request Oct 24, 2025
@julienledem @kou
ARROW-367: converter json <=> Arrow file format for Integration tests
858b1b1 
Author: Julien Le Dem <julien@dremio.com>

Closes apache#203 from julienledem/integration and squashes the following commits:

b3cd326 [Julien Le Dem] add license
fdbe03f [Julien Le Dem] ARROW-367: converter json <=> Arrow file format for Integration tests
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