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<section id="implementation-status">
<h1>Implementation Status<a class="headerlink" href="#implementation-status" title="Permalink 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="Permalink to this heading">#</a></h2>
<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>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></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></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></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="row-odd"><td><p>Large Binary View</p></td>
<td><p>✓</p></td>
<td></td>
<td><p>✓</p></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="row-even"><td><p>Utf8 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></td>
</tr>
<tr class="row-odd"><td><p>Large Utf8 View</p></td>
<td><p>✓</p></td>
<td></td>
<td><p>✓</p></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>
<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></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></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></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>
<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></td>
</tr>
</tbody>
</table>
<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>
</tbody>
</table>
<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>
</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="Permalink to this heading">#</a></h2>
<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>
<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="Permalink to this heading">#</a></h2>
<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>
<tr class="row-odd"><td><p><a class="reference external" href="https://openucx.org/">UCX</a> transport (ucx:)</p></td>
<td><p>✓</p></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>
<p>Supported features in the gRPC transport:</p>
<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>✓ (1)</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>✓ (2)</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 (3)</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>
<p>Supported features in the UCX transport:</p>
<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>✓ (4)</p></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="row-odd"><td><p>Authentication handlers</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>Call timeouts</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>Call cancellation</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>Concurrent client calls</p></td>
<td><p>✓ (5)</p></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr class="row-odd"><td><p>Custom middleware</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>RPC error codes</p></td>
<td><p>✓</p></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>
<p>Notes:</p>
<ul class="simple">
<li><p>(1) No support for Handshake or DoExchange.</p></li>
<li><p>(2) Support using AspNetCore authentication handlers.</p></li>
<li><p>(3) Whether a single client can support multiple concurrent calls.</p></li>
<li><p>(4) Only support for DoExchange, DoGet, DoPut, and GetFlightInfo.</p></li>
<li><p>(5) Each concurrent call is a separate connection to the server
(unlike gRPC where concurrent calls are multiplexed over a single
connection). This will generally provide better throughput but
consumes more resources both on the server and the client.</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="Permalink 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>
<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 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="Permalink to this heading">#</a></h2>
<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 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="Permalink to this heading">#</a></h2>
<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 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="Permalink to this heading">#</a></h2>
<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></td>
<td></td>
<td></td>
<td></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>
<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>
</section>
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