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| <section id="implementation-status"> |
| <span id="status"></span><h1>Implementation Status<a class="headerlink" href="#implementation-status" title="Link to this heading">#</a></h1> |
| <p>The following tables summarize the features available in the various official |
| Arrow libraries. All libraries currently follow version 1.0.0 of the Arrow |
| format, or later minor versions that are compatible with version 1.0.0. See |
| <a class="reference internal" href="format/Versioning.html"><span class="doc">Format Versioning and Stability</span></a> for details about versioning. Unless otherwise |
| stated, the Python, R, Ruby and C/GLib libraries follow the C++ Arrow library.</p> |
| <section id="data-types"> |
| <h2>Data Types<a class="headerlink" href="#data-types" title="Link to this heading">#</a></h2> |
| <div class="pst-scrollable-table-container"><table class="table"> |
| <thead> |
| <tr class="row-odd"><th class="head"><p>Data type |
| (primitive)</p></th> |
| <th class="head"><p>C++</p></th> |
| <th class="head"><p>Java</p></th> |
| <th class="head"><p>Go</p></th> |
| <th class="head"><p>JS</p></th> |
| <th class="head"><p>C#</p></th> |
| <th class="head"><p>Rust</p></th> |
| <th class="head"><p>Julia</p></th> |
| <th class="head"><p>Swift</p></th> |
| <th class="head"><p>nanoarrow</p></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="row-even"><td><p>Null</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Boolean</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Int8/16/32/64</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>UInt8/16/32/64</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Float16</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓ (1)</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓ (2)</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Float32/64</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Decimal32</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Decimal64</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Decimal128</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Decimal256</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Date32/64</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Time32/64</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Timestamp</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Duration</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Interval</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Fixed Size Binary</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Binary</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Large Binary</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>(4)</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Utf8</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Large Utf8</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>(4)</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Binary View</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Utf8 View</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="pst-scrollable-table-container"><table class="table"> |
| <thead> |
| <tr class="row-odd"><th class="head"><p>Data type |
| (nested)</p></th> |
| <th class="head"><p>C++</p></th> |
| <th class="head"><p>Java</p></th> |
| <th class="head"><p>Go</p></th> |
| <th class="head"><p>JS</p></th> |
| <th class="head"><p>C#</p></th> |
| <th class="head"><p>Rust</p></th> |
| <th class="head"><p>Julia</p></th> |
| <th class="head"><p>Swift</p></th> |
| <th class="head"><p>nanoarrow</p></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="row-even"><td><p>Fixed Size List</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>List</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Large List</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>(4)</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>List View</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Large List View</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Struct</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Map</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Dense Union</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Sparse Union</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="pst-scrollable-table-container"><table class="table"> |
| <thead> |
| <tr class="row-odd"><th class="head"><p>Data type |
| (special)</p></th> |
| <th class="head"><p>C++</p></th> |
| <th class="head"><p>Java</p></th> |
| <th class="head"><p>Go</p></th> |
| <th class="head"><p>JS</p></th> |
| <th class="head"><p>C#</p></th> |
| <th class="head"><p>Rust</p></th> |
| <th class="head"><p>Julia</p></th> |
| <th class="head"><p>Swift</p></th> |
| <th class="head"><p>nanoarrow</p></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="row-even"><td><p>Dictionary</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓ (3)</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓ (3)</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Extension</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Run-End Encoded</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="pst-scrollable-table-container"><table class="table"> |
| <thead> |
| <tr class="row-odd"><th class="head"><p>Canonical |
| Extension types</p></th> |
| <th class="head"><p>C++</p></th> |
| <th class="head"><p>Java</p></th> |
| <th class="head"><p>Go</p></th> |
| <th class="head"><p>JavaScript</p></th> |
| <th class="head"><p>C#</p></th> |
| <th class="head"><p>Rust</p></th> |
| <th class="head"><p>Julia</p></th> |
| <th class="head"><p>Swift</p></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="row-even"><td><p>Fixed shape tensor</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>Variable shape tensor</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>JSON</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>Opaque</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>UUID</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>8-bit Boolean</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>Parquet Variant</p></td> |
| <td></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <p>Notes:</p> |
| <ul class="simple"> |
| <li><p>(1) Casting to/from Float16 in Java is not supported.</p></li> |
| <li><p>(2) Float16 support in C# is only available when targeting .NET 6+.</p></li> |
| <li><p>(3) Nested dictionaries not supported</p></li> |
| <li><p>(4) C# large array types are provided to help with interoperability with other libraries, |
| but these do not support buffers larger than 2 GiB and an exception will be raised if trying to import an array that is too large.</p></li> |
| </ul> |
| <div class="admonition seealso"> |
| <p class="admonition-title">See also</p> |
| <p>The <a class="reference internal" href="format/Columnar.html#format-columnar"><span class="std std-ref">Arrow Columnar Format</span></a> and the |
| <a class="reference internal" href="format/CanonicalExtensions.html#format-canonical-extensions"><span class="std std-ref">Canonical Extension Types</span></a> specification.</p> |
| </div> |
| </section> |
| <section id="ipc-format"> |
| <h2>IPC Format<a class="headerlink" href="#ipc-format" title="Link to this heading">#</a></h2> |
| <div class="pst-scrollable-table-container"><table class="table"> |
| <thead> |
| <tr class="row-odd"><th class="head"><p>IPC Feature</p></th> |
| <th class="head"><p>C++</p></th> |
| <th class="head"><p>Java</p></th> |
| <th class="head"><p>Go</p></th> |
| <th class="head"><p>JS</p></th> |
| <th class="head"><p>C#</p></th> |
| <th class="head"><p>Rust</p></th> |
| <th class="head"><p>Julia</p></th> |
| <th class="head"><p>Swift</p></th> |
| <th class="head"><p>nanoarrow</p></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="row-even"><td><p>Arrow stream format</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓ (4)</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Arrow file format</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>Record batches</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Dictionaries</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>Replacement dictionaries</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>Delta dictionaries</p></td> |
| <td><p>✓ (1)</p></td> |
| <td></td> |
| <td><p>✓ (1)</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>Tensors</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>Sparse tensors</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>Buffer compression</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓ (3)</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>Endianness conversion</p></td> |
| <td><p>✓ (2)</p></td> |
| <td></td> |
| <td><p>✓ (2)</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td><p>✓ (2)</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Custom schema metadata</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <p>Notes:</p> |
| <ul class="simple"> |
| <li><p>(1) Delta dictionaries not supported on nested dictionaries</p></li> |
| <li><p>(2) Data with non-native endianness can be byte-swapped automatically when reading.</p></li> |
| <li><p>(3) LZ4 Codec currently is quite inefficient. ARROW-11901 tracks improving performance.</p></li> |
| <li><p>(4) The nanoarrow IPC implementation is only implemented for reading IPC streams.</p></li> |
| </ul> |
| <div class="admonition seealso"> |
| <p class="admonition-title">See also</p> |
| <p>The <a class="reference internal" href="format/Columnar.html#format-ipc"><span class="std std-ref">Serialization and Interprocess Communication (IPC)</span></a> specification.</p> |
| </div> |
| </section> |
| <section id="flight-rpc"> |
| <span id="status-flight-rpc"></span><h2>Flight RPC<a class="headerlink" href="#flight-rpc" title="Link to this heading">#</a></h2> |
| <div class="pst-scrollable-table-container"><table class="table"> |
| <thead> |
| <tr class="row-odd"><th class="head"><p>Flight RPC Transport</p></th> |
| <th class="head"><p>C++</p></th> |
| <th class="head"><p>Java</p></th> |
| <th class="head"><p>Go</p></th> |
| <th class="head"><p>JS</p></th> |
| <th class="head"><p>C#</p></th> |
| <th class="head"><p>Rust</p></th> |
| <th class="head"><p>Julia</p></th> |
| <th class="head"><p>Swift</p></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="row-even"><td><p><a class="reference external" href="https://grpc.io/">gRPC</a> transport (grpc:, grpc+tcp:)</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>gRPC domain socket transport (grpc+unix:)</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>gRPC + TLS transport (grpc+tls:)</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <p>Supported features in the gRPC transport:</p> |
| <div class="pst-scrollable-table-container"><table class="table"> |
| <thead> |
| <tr class="row-odd"><th class="head"><p>Flight RPC Feature</p></th> |
| <th class="head"><p>C++</p></th> |
| <th class="head"><p>Java</p></th> |
| <th class="head"><p>Go</p></th> |
| <th class="head"><p>JS</p></th> |
| <th class="head"><p>C#</p></th> |
| <th class="head"><p>Rust</p></th> |
| <th class="head"><p>Julia</p></th> |
| <th class="head"><p>Swift</p></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="row-even"><td><p>All RPC methods</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>Authentication handlers</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓ (1)</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>Call timeouts</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>Call cancellation</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>Concurrent client calls (2)</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>Custom middleware</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>RPC error codes</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <p>Notes:</p> |
| <ul class="simple"> |
| <li><p>(1) Support using AspNetCore authentication handlers.</p></li> |
| <li><p>(2) Whether a single client can support multiple concurrent calls.</p></li> |
| </ul> |
| <div class="admonition seealso"> |
| <p class="admonition-title">See also</p> |
| <p>The <a class="reference internal" href="format/Flight.html#flight-rpc"><span class="std std-ref">Arrow Flight RPC</span></a> specification.</p> |
| </div> |
| </section> |
| <section id="flight-sql"> |
| <h2>Flight SQL<a class="headerlink" href="#flight-sql" title="Link to this heading">#</a></h2> |
| <div class="admonition note"> |
| <p class="admonition-title">Note</p> |
| <p>Flight SQL is still experimental.</p> |
| </div> |
| <p>The feature support refers to the client/server libraries only; |
| databases which implement the Flight SQL protocol in turn will |
| support/not support individual features.</p> |
| <div class="pst-scrollable-table-container"><table class="table"> |
| <thead> |
| <tr class="row-odd"><th class="head"><p>Feature</p></th> |
| <th class="head"><p>C++</p></th> |
| <th class="head"><p>Java</p></th> |
| <th class="head"><p>Go</p></th> |
| <th class="head"><p>JS</p></th> |
| <th class="head"><p>C#</p></th> |
| <th class="head"><p>Rust</p></th> |
| <th class="head"><p>Julia</p></th> |
| <th class="head"><p>Swift</p></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="row-even"><td><p>BeginSavepoint</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>BeginTransaction</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>CancelQuery</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>ClosePreparedStatement</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>CreatePreparedStatement</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>CreatePreparedSubstraitPlan</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>EndSavepoint</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>EndTransaction</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>GetCatalogs</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>GetCrossReference</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>GetDbSchemas</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>GetExportedKeys</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>GetImportedKeys</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>GetPrimaryKeys</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>GetSqlInfo</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>GetTables</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>GetTableTypes</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>GetXdbcTypeInfo</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>PreparedStatementQuery</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>PreparedStatementUpdate</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>StatementSubstraitPlan</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>StatementQuery</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>StatementUpdate</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="admonition seealso"> |
| <p class="admonition-title">See also</p> |
| <p>The <a class="reference internal" href="format/FlightSql.html"><span class="doc">Arrow Flight SQL</span></a> specification.</p> |
| </div> |
| </section> |
| <section id="c-data-interface"> |
| <h2>C Data Interface<a class="headerlink" href="#c-data-interface" title="Link to this heading">#</a></h2> |
| <div class="pst-scrollable-table-container"><table class="table"> |
| <thead> |
| <tr class="row-odd"><th class="head"><p>Feature</p></th> |
| <th class="head"><p>C++</p></th> |
| <th class="head"><p>Python</p></th> |
| <th class="head"><p>R</p></th> |
| <th class="head"><p>Rust</p></th> |
| <th class="head"><p>Go</p></th> |
| <th class="head"><p>Java</p></th> |
| <th class="head"><p>C/GLib</p></th> |
| <th class="head"><p>Ruby</p></th> |
| <th class="head"><p>Julia</p></th> |
| <th class="head"><p>C#</p></th> |
| <th class="head"><p>Swift</p></th> |
| <th class="head"><p>nanoarrow</p></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="row-even"><td><p>Schema export</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Array export</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Schema import</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Array import</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="admonition seealso"> |
| <p class="admonition-title">See also</p> |
| <p>The <a class="reference internal" href="format/CDataInterface.html#c-data-interface"><span class="std std-ref">C Data Interface</span></a> specification.</p> |
| </div> |
| </section> |
| <section id="c-stream-interface"> |
| <h2>C Stream Interface<a class="headerlink" href="#c-stream-interface" title="Link to this heading">#</a></h2> |
| <div class="pst-scrollable-table-container"><table class="table"> |
| <thead> |
| <tr class="row-odd"><th class="head"><p>Feature</p></th> |
| <th class="head"><p>C++</p></th> |
| <th class="head"><p>Python</p></th> |
| <th class="head"><p>R</p></th> |
| <th class="head"><p>Rust</p></th> |
| <th class="head"><p>Go</p></th> |
| <th class="head"><p>Java</p></th> |
| <th class="head"><p>C/GLib</p></th> |
| <th class="head"><p>Ruby</p></th> |
| <th class="head"><p>Julia</p></th> |
| <th class="head"><p>C#</p></th> |
| <th class="head"><p>Swift</p></th> |
| <th class="head"><p>nanoarrow</p></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="row-even"><td><p>Stream export</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Stream import</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| <td></td> |
| <td><p>✓</p></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="admonition seealso"> |
| <p class="admonition-title">See also</p> |
| <p>The <a class="reference internal" href="format/CStreamInterface.html#c-stream-interface"><span class="std std-ref">C Stream Interface</span></a> specification.</p> |
| </div> |
| </section> |
| <section id="third-party-data-formats"> |
| <h2>Third-Party Data Formats<a class="headerlink" href="#third-party-data-formats" title="Link to this heading">#</a></h2> |
| <div class="pst-scrollable-table-container"><table class="table"> |
| <thead> |
| <tr class="row-odd"><th class="head"><p>Format</p></th> |
| <th class="head"><p>C++</p></th> |
| <th class="head"><p>Java</p></th> |
| <th class="head"><p>Go</p></th> |
| <th class="head"><p>JS</p></th> |
| <th class="head"><p>C#</p></th> |
| <th class="head"><p>Rust</p></th> |
| <th class="head"><p>Julia</p></th> |
| <th class="head"><p>Swift</p></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="row-even"><td><p>Avro</p></td> |
| <td></td> |
| <td><p>R</p></td> |
| <td><p>R</p></td> |
| <td></td> |
| <td></td> |
| <td><p>R/W</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>CSV</p></td> |
| <td><p>R/W</p></td> |
| <td><p>R (2)</p></td> |
| <td><p>R/W</p></td> |
| <td></td> |
| <td></td> |
| <td><p>R/W</p></td> |
| <td><p>R/W</p></td> |
| <td></td> |
| </tr> |
| <tr class="row-even"><td><p>ORC</p></td> |
| <td><p>R/W</p></td> |
| <td><p>R (1)</p></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| <td></td> |
| </tr> |
| <tr class="row-odd"><td><p>Parquet</p></td> |
| <td><p>R/W</p></td> |
| <td><p>R (2)</p></td> |
| <td><p>R/W</p></td> |
| <td></td> |
| <td></td> |
| <td><p>R/W</p></td> |
| <td></td> |
| <td></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <p>Notes:</p> |
| <ul class="simple"> |
| <li><p><em>R</em> = Read supported</p></li> |
| <li><p><em>W</em> = Write supported</p></li> |
| <li><p>(1) Through JNI bindings. (Provided by <code class="docutils literal notranslate"><span class="pre">org.apache.arrow.orc:arrow-orc</span></code>)</p></li> |
| <li><p>(2) Through JNI bindings to Arrow C++ Datasets. (Provided by <code class="docutils literal notranslate"><span class="pre">org.apache.arrow:arrow-dataset</span></code>)</p></li> |
| </ul> |
| </section> |
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