| <!DOCTYPE html> |
| |
| <html lang="en" data-content_root="../"> |
| <head> |
| <meta charset="utf-8" /> |
| <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" /> |
| |
| <title>Upgrade Guides — Apache Arrow DataFusion documentation</title> |
| |
| <link href="../_static/styles/theme.css?digest=1999514e3f237ded88cf" rel="stylesheet"> |
| <link href="../_static/styles/pydata-sphinx-theme.css?digest=1999514e3f237ded88cf" rel="stylesheet"> |
| |
| |
| <link rel="stylesheet" |
| href="../_static/vendor/fontawesome/5.13.0/css/all.min.css"> |
| <link rel="preload" as="font" type="font/woff2" crossorigin |
| href="../_static/vendor/fontawesome/5.13.0/webfonts/fa-solid-900.woff2"> |
| <link rel="preload" as="font" type="font/woff2" crossorigin |
| href="../_static/vendor/fontawesome/5.13.0/webfonts/fa-brands-400.woff2"> |
| |
| |
| |
| |
| |
| <link rel="stylesheet" type="text/css" href="../_static/pygments.css?v=8f2a1f02" /> |
| <link rel="stylesheet" type="text/css" href="../_static/styles/pydata-sphinx-theme.css?v=1140d252" /> |
| <link rel="stylesheet" type="text/css" href="../_static/graphviz.css?v=4ae1632d" /> |
| <link rel="stylesheet" type="text/css" href="../_static/theme_overrides.css?v=dca7052a" /> |
| |
| <link rel="preload" as="script" href="../_static/scripts/pydata-sphinx-theme.js?digest=1999514e3f237ded88cf"> |
| |
| <script src="../_static/documentation_options.js?v=8a448e45"></script> |
| <script src="../_static/doctools.js?v=9bcbadda"></script> |
| <script src="../_static/sphinx_highlight.js?v=dc90522c"></script> |
| <link rel="index" title="Index" href="../genindex.html" /> |
| <link rel="search" title="Search" href="../search.html" /> |
| <link rel="next" title="Introduction" href="../contributor-guide/introduction.html" /> |
| <link rel="prev" title="SQL" href="sql.html" /> |
| <meta name="viewport" content="width=device-width, initial-scale=1" /> |
| <meta name="docsearch:language" content="en"> |
| |
| |
| <!-- Google Analytics --> |
| |
| </head> |
| <body data-spy="scroll" data-target="#bd-toc-nav" data-offset="80"> |
| |
| <div class="container-fluid" id="banner"></div> |
| |
| |
| |
| |
| <div class="container-xl"> |
| <div class="row"> |
| |
| |
| <!-- Only show if we have sidebars configured, else just a small margin --> |
| <div class="col-12 col-md-3 bd-sidebar"> |
| <div class="sidebar-start-items"> |
| <a class="navbar-brand" href="../index.html"> |
| <img src="../_static/images/2x_bgwhite_original.png" class="logo" alt="logo"> |
| </a> |
| |
| <form class="bd-search d-flex align-items-center" action="../search.html" method="get"> |
| <i class="icon fas fa-search"></i> |
| <input type="search" class="form-control" name="q" id="search-input" placeholder="Search the docs ..." aria-label="Search the docs ..." autocomplete="off" > |
| </form> |
| |
| <nav class="bd-links" id="bd-docs-nav" aria-label="Main navigation"> |
| <div class="bd-toc-item active"> |
| |
| <p aria-level="2" class="caption" role="heading"> |
| <span class="caption-text"> |
| LINKS |
| </span> |
| </p> |
| <ul class="nav bd-sidenav"> |
| <li class="toctree-l1"> |
| <a class="reference external" href="https://github.com/apache/datafusion-python"> |
| Github and Issue Tracker |
| </a> |
| </li> |
| <li class="toctree-l1"> |
| <a class="reference external" href="https://docs.rs/datafusion/latest/datafusion/"> |
| Rust's API Docs |
| </a> |
| </li> |
| <li class="toctree-l1"> |
| <a class="reference external" href="https://github.com/apache/datafusion/blob/main/CODE_OF_CONDUCT.md"> |
| Code of conduct |
| </a> |
| </li> |
| <li class="toctree-l1"> |
| <a class="reference external" href="https://github.com/apache/datafusion-python/tree/main/examples"> |
| Examples |
| </a> |
| </li> |
| </ul> |
| <p aria-level="2" class="caption" role="heading"> |
| <span class="caption-text"> |
| USER GUIDE |
| </span> |
| </p> |
| <ul class="current nav bd-sidenav"> |
| <li class="toctree-l1"> |
| <a class="reference internal" href="introduction.html"> |
| Introduction |
| </a> |
| </li> |
| <li class="toctree-l1"> |
| <a class="reference internal" href="basics.html"> |
| Concepts |
| </a> |
| </li> |
| <li class="toctree-l1"> |
| <a class="reference internal" href="data-sources.html"> |
| Data Sources |
| </a> |
| </li> |
| <li class="toctree-l1 has-children"> |
| <a class="reference internal" href="dataframe/index.html"> |
| DataFrames |
| </a> |
| <input class="toctree-checkbox" id="toctree-checkbox-1" name="toctree-checkbox-1" type="checkbox"/> |
| <label for="toctree-checkbox-1"> |
| <i class="fas fa-chevron-down"> |
| </i> |
| </label> |
| <ul> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="dataframe/rendering.html"> |
| HTML Rendering in Jupyter |
| </a> |
| </li> |
| </ul> |
| </li> |
| <li class="toctree-l1 has-children"> |
| <a class="reference internal" href="common-operations/index.html"> |
| Common Operations |
| </a> |
| <input class="toctree-checkbox" id="toctree-checkbox-2" name="toctree-checkbox-2" type="checkbox"/> |
| <label for="toctree-checkbox-2"> |
| <i class="fas fa-chevron-down"> |
| </i> |
| </label> |
| <ul> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="common-operations/views.html"> |
| Registering Views |
| </a> |
| </li> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="common-operations/basic-info.html"> |
| Basic Operations |
| </a> |
| </li> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="common-operations/select-and-filter.html"> |
| Column Selections |
| </a> |
| </li> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="common-operations/expressions.html"> |
| Expressions |
| </a> |
| </li> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="common-operations/joins.html"> |
| Joins |
| </a> |
| </li> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="common-operations/functions.html"> |
| Functions |
| </a> |
| </li> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="common-operations/aggregations.html"> |
| Aggregation |
| </a> |
| </li> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="common-operations/windows.html"> |
| Window Functions |
| </a> |
| </li> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="common-operations/udf-and-udfa.html"> |
| User-Defined Functions |
| </a> |
| </li> |
| </ul> |
| </li> |
| <li class="toctree-l1 has-children"> |
| <a class="reference internal" href="io/index.html"> |
| IO |
| </a> |
| <input class="toctree-checkbox" id="toctree-checkbox-3" name="toctree-checkbox-3" type="checkbox"/> |
| <label for="toctree-checkbox-3"> |
| <i class="fas fa-chevron-down"> |
| </i> |
| </label> |
| <ul> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="io/arrow.html"> |
| Arrow |
| </a> |
| </li> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="io/avro.html"> |
| Avro |
| </a> |
| </li> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="io/csv.html"> |
| CSV |
| </a> |
| </li> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="io/json.html"> |
| JSON |
| </a> |
| </li> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="io/parquet.html"> |
| Parquet |
| </a> |
| </li> |
| <li class="toctree-l2"> |
| <a class="reference internal" href="io/table_provider.html"> |
| Custom Table Provider |
| </a> |
| </li> |
| </ul> |
| </li> |
| <li class="toctree-l1"> |
| <a class="reference internal" href="configuration.html"> |
| Configuration |
| </a> |
| </li> |
| <li class="toctree-l1"> |
| <a class="reference internal" href="sql.html"> |
| SQL |
| </a> |
| </li> |
| <li class="toctree-l1 current active"> |
| <a class="current reference internal" href="#"> |
| Upgrade Guides |
| </a> |
| </li> |
| </ul> |
| <p aria-level="2" class="caption" role="heading"> |
| <span class="caption-text"> |
| CONTRIBUTOR GUIDE |
| </span> |
| </p> |
| <ul class="nav bd-sidenav"> |
| <li class="toctree-l1"> |
| <a class="reference internal" href="../contributor-guide/introduction.html"> |
| Introduction |
| </a> |
| </li> |
| <li class="toctree-l1"> |
| <a class="reference internal" href="../contributor-guide/ffi.html"> |
| Python Extensions |
| </a> |
| </li> |
| </ul> |
| <p aria-level="2" class="caption" role="heading"> |
| <span class="caption-text"> |
| API |
| </span> |
| </p> |
| <ul class="nav bd-sidenav"> |
| <li class="toctree-l1 has-children"> |
| <a class="reference internal" href="../autoapi/index.html"> |
| API Reference |
| </a> |
| <input class="toctree-checkbox" id="toctree-checkbox-4" name="toctree-checkbox-4" type="checkbox"/> |
| <label for="toctree-checkbox-4"> |
| <i class="fas fa-chevron-down"> |
| </i> |
| </label> |
| <ul> |
| <li class="toctree-l2 has-children"> |
| <a class="reference internal" href="../autoapi/datafusion/index.html"> |
| datafusion |
| </a> |
| <input class="toctree-checkbox" id="toctree-checkbox-5" name="toctree-checkbox-5" type="checkbox"/> |
| <label for="toctree-checkbox-5"> |
| <i class="fas fa-chevron-down"> |
| </i> |
| </label> |
| <ul> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/catalog/index.html"> |
| datafusion.catalog |
| </a> |
| </li> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/context/index.html"> |
| datafusion.context |
| </a> |
| </li> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/dataframe/index.html"> |
| datafusion.dataframe |
| </a> |
| </li> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/dataframe_formatter/index.html"> |
| datafusion.dataframe_formatter |
| </a> |
| </li> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/expr/index.html"> |
| datafusion.expr |
| </a> |
| </li> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/functions/index.html"> |
| datafusion.functions |
| </a> |
| </li> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/html_formatter/index.html"> |
| datafusion.html_formatter |
| </a> |
| </li> |
| <li class="toctree-l3 has-children"> |
| <a class="reference internal" href="../autoapi/datafusion/input/index.html"> |
| datafusion.input |
| </a> |
| <input class="toctree-checkbox" id="toctree-checkbox-6" name="toctree-checkbox-6" type="checkbox"/> |
| <label for="toctree-checkbox-6"> |
| <i class="fas fa-chevron-down"> |
| </i> |
| </label> |
| <ul> |
| <li class="toctree-l4"> |
| <a class="reference internal" href="../autoapi/datafusion/input/base/index.html"> |
| datafusion.input.base |
| </a> |
| </li> |
| <li class="toctree-l4"> |
| <a class="reference internal" href="../autoapi/datafusion/input/location/index.html"> |
| datafusion.input.location |
| </a> |
| </li> |
| </ul> |
| </li> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/io/index.html"> |
| datafusion.io |
| </a> |
| </li> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/object_store/index.html"> |
| datafusion.object_store |
| </a> |
| </li> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/options/index.html"> |
| datafusion.options |
| </a> |
| </li> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/plan/index.html"> |
| datafusion.plan |
| </a> |
| </li> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/record_batch/index.html"> |
| datafusion.record_batch |
| </a> |
| </li> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/substrait/index.html"> |
| datafusion.substrait |
| </a> |
| </li> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/unparser/index.html"> |
| datafusion.unparser |
| </a> |
| </li> |
| <li class="toctree-l3"> |
| <a class="reference internal" href="../autoapi/datafusion/user_defined/index.html"> |
| datafusion.user_defined |
| </a> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| |
| |
| </div> |
| </nav> |
| </div> |
| <div class="sidebar-end-items"> |
| </div> |
| </div> |
| |
| |
| |
| |
| <div class="d-none d-xl-block col-xl-2 bd-toc"> |
| |
| |
| <div class="toc-item"> |
| |
| <div class="tocsection onthispage pt-5 pb-3"> |
| <i class="fas fa-list"></i> On this page |
| </div> |
| |
| <nav id="bd-toc-nav"> |
| <ul class="visible nav section-nav flex-column"> |
| <li class="toc-h2 nav-item toc-entry"> |
| <a class="reference internal nav-link" href="#datafusion-52-0-0"> |
| DataFusion 52.0.0 |
| </a> |
| </li> |
| </ul> |
| |
| </nav> |
| </div> |
| |
| <div class="toc-item"> |
| |
| </div> |
| |
| |
| </div> |
| |
| |
| |
| |
| |
| |
| <main class="col-12 col-md-9 col-xl-7 py-md-5 pl-md-5 pr-md-4 bd-content" role="main"> |
| |
| <div> |
| |
| <section id="upgrade-guides"> |
| <h1>Upgrade Guides<a class="headerlink" href="#upgrade-guides" title="Link to this heading">¶</a></h1> |
| <section id="datafusion-52-0-0"> |
| <h2>DataFusion 52.0.0<a class="headerlink" href="#datafusion-52-0-0" title="Link to this heading">¶</a></h2> |
| <p>This version includes a major update to the <a class="reference internal" href="../contributor-guide/ffi.html#ffi"><span class="std std-ref">Python Extensions</span></a> due to upgrades |
| to the <a class="reference external" href="https://doc.rust-lang.org/nomicon/ffi.html">Foreign Function Interface</a>. |
| Users who contribute their own <code class="docutils literal notranslate"><span class="pre">CatalogProvider</span></code>, <code class="docutils literal notranslate"><span class="pre">SchemaProvider</span></code>, |
| <code class="docutils literal notranslate"><span class="pre">TableProvider</span></code> or <code class="docutils literal notranslate"><span class="pre">TableFunction</span></code> via FFI must now provide access to a |
| <code class="docutils literal notranslate"><span class="pre">LogicalExtensionCodec</span></code> and a <code class="docutils literal notranslate"><span class="pre">TaskContextProvider</span></code>. The function signatures |
| for the methods to get these <code class="docutils literal notranslate"><span class="pre">PyCapsule</span></code> objects now requires an additional |
| parameter, which is a Python object that can be used to extract the |
| <code class="docutils literal notranslate"><span class="pre">FFI_LogicalExtensionCodec</span></code> that is necessary.</p> |
| <p>A complete example can be found in the <a class="reference external" href="https://github.com/apache/datafusion-python/tree/main/examples/datafusion-ffi-example">FFI example</a>. |
| Your methods need to be updated to take an additional parameter like in this |
| example.</p> |
| <div class="highlight-rust notranslate"><div class="highlight"><pre><span></span><span class="cp">#[pymethods]</span> |
| <span class="k">impl</span><span class="w"> </span><span class="n">MyCatalogProvider</span><span class="w"> </span><span class="p">{</span> |
| <span class="w"> </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="nf">__datafusion_catalog_provider__</span><span class="o"><'</span><span class="na">py</span><span class="o">></span><span class="p">(</span> |
| <span class="w"> </span><span class="o">&</span><span class="bp">self</span><span class="p">,</span> |
| <span class="w"> </span><span class="n">py</span><span class="p">:</span><span class="w"> </span><span class="nc">Python</span><span class="o"><'</span><span class="na">py</span><span class="o">></span><span class="p">,</span> |
| <span class="w"> </span><span class="n">session</span><span class="p">:</span><span class="w"> </span><span class="nc">Bound</span><span class="o"><</span><span class="n">PyAny</span><span class="o">></span><span class="p">,</span> |
| <span class="w"> </span><span class="p">)</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="nc">PyResult</span><span class="o"><</span><span class="n">Bound</span><span class="o"><'</span><span class="na">py</span><span class="p">,</span><span class="w"> </span><span class="n">PyCapsule</span><span class="o">>></span><span class="w"> </span><span class="p">{</span> |
| <span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">name</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">cr</span><span class="s">"datafusion_catalog_provider"</span><span class="p">.</span><span class="n">into</span><span class="p">();</span> |
| |
| <span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">provider</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Arc</span><span class="p">::</span><span class="n">clone</span><span class="p">(</span><span class="o">&</span><span class="bp">self</span><span class="p">.</span><span class="n">inner</span><span class="p">)</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="n">Arc</span><span class="o"><</span><span class="k">dyn</span><span class="w"> </span><span class="n">CatalogProvider</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="nb">Send</span><span class="o">></span><span class="p">;</span> |
| |
| <span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">codec</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ffi_logical_codec_from_pycapsule</span><span class="p">(</span><span class="n">session</span><span class="p">)</span><span class="o">?</span><span class="p">;</span> |
| <span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">provider</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">FFI_CatalogProvider</span><span class="p">::</span><span class="n">new_with_ffi_codec</span><span class="p">(</span><span class="n">provider</span><span class="p">,</span><span class="w"> </span><span class="nb">None</span><span class="p">,</span><span class="w"> </span><span class="n">codec</span><span class="p">);</span> |
| |
| <span class="w"> </span><span class="n">PyCapsule</span><span class="p">::</span><span class="n">new</span><span class="p">(</span><span class="n">py</span><span class="p">,</span><span class="w"> </span><span class="n">provider</span><span class="p">,</span><span class="w"> </span><span class="nb">Some</span><span class="p">(</span><span class="n">name</span><span class="p">))</span> |
| <span class="w"> </span><span class="p">}</span> |
| <span class="p">}</span> |
| </pre></div> |
| </div> |
| <p>To extract the logical extension codec FFI object from the provided object you |
| can implement a helper method such as:</p> |
| <div class="highlight-rust notranslate"><div class="highlight"><pre><span></span><span class="k">pub</span><span class="p">(</span><span class="k">crate</span><span class="p">)</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="nf">ffi_logical_codec_from_pycapsule</span><span class="p">(</span> |
| <span class="w"> </span><span class="n">obj</span><span class="p">:</span><span class="w"> </span><span class="nc">Bound</span><span class="o"><</span><span class="n">PyAny</span><span class="o">></span><span class="p">,</span> |
| <span class="p">)</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="nc">PyResult</span><span class="o"><</span><span class="n">FFI_LogicalExtensionCodec</span><span class="o">></span><span class="w"> </span><span class="p">{</span> |
| <span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">attr_name</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">"__datafusion_logical_extension_codec__"</span><span class="p">;</span> |
| <span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">capsule</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">obj</span><span class="p">.</span><span class="n">hasattr</span><span class="p">(</span><span class="n">attr_name</span><span class="p">)</span><span class="o">?</span><span class="w"> </span><span class="p">{</span> |
| <span class="w"> </span><span class="n">obj</span><span class="p">.</span><span class="n">getattr</span><span class="p">(</span><span class="n">attr_name</span><span class="p">)</span><span class="o">?</span><span class="p">.</span><span class="n">call0</span><span class="p">()</span><span class="o">?</span> |
| <span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="k">else</span><span class="w"> </span><span class="p">{</span> |
| <span class="w"> </span><span class="n">obj</span> |
| <span class="w"> </span><span class="p">};</span> |
| |
| <span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">capsule</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">capsule</span><span class="p">.</span><span class="n">downcast</span><span class="p">::</span><span class="o"><</span><span class="n">PyCapsule</span><span class="o">></span><span class="p">()</span><span class="o">?</span><span class="p">;</span> |
| <span class="w"> </span><span class="n">validate_pycapsule</span><span class="p">(</span><span class="n">capsule</span><span class="p">,</span><span class="w"> </span><span class="s">"datafusion_logical_extension_codec"</span><span class="p">)</span><span class="o">?</span><span class="p">;</span> |
| |
| <span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="n">codec</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">unsafe</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="n">capsule</span><span class="p">.</span><span class="n">reference</span><span class="p">::</span><span class="o"><</span><span class="n">FFI_LogicalExtensionCodec</span><span class="o">></span><span class="p">()</span><span class="w"> </span><span class="p">};</span> |
| |
| <span class="w"> </span><span class="nb">Ok</span><span class="p">(</span><span class="n">codec</span><span class="p">.</span><span class="n">clone</span><span class="p">())</span> |
| <span class="p">}</span> |
| </pre></div> |
| </div> |
| <p>The DataFusion FFI interface updates no longer depend directly on the |
| <code class="docutils literal notranslate"><span class="pre">datafusion</span></code> core crate. You can improve your build times and potentially |
| reduce your library binary size by removing this dependency and instead |
| using the specific datafusion project crates.</p> |
| <p>For example, instead of including expressions like:</p> |
| <div class="highlight-rust notranslate"><div class="highlight"><pre><span></span><span class="k">use</span><span class="w"> </span><span class="n">datafusion</span><span class="p">::</span><span class="n">catalog</span><span class="p">::</span><span class="n">MemTable</span><span class="p">;</span> |
| </pre></div> |
| </div> |
| <p>Instead you can now write:</p> |
| <div class="highlight-rust notranslate"><div class="highlight"><pre><span></span><span class="k">use</span><span class="w"> </span><span class="n">datafusion_catalog</span><span class="p">::</span><span class="n">MemTable</span><span class="p">;</span> |
| </pre></div> |
| </div> |
| </section> |
| </section> |
| |
| |
| </div> |
| |
| |
| <!-- Previous / next buttons --> |
| <div class='prev-next-area'> |
| <a class='left-prev' id="prev-link" href="sql.html" title="previous page"> |
| <i class="fas fa-angle-left"></i> |
| <div class="prev-next-info"> |
| <p class="prev-next-subtitle">previous</p> |
| <p class="prev-next-title">SQL</p> |
| </div> |
| </a> |
| <a class='right-next' id="next-link" href="../contributor-guide/introduction.html" title="next page"> |
| <div class="prev-next-info"> |
| <p class="prev-next-subtitle">next</p> |
| <p class="prev-next-title">Introduction</p> |
| </div> |
| <i class="fas fa-angle-right"></i> |
| </a> |
| </div> |
| |
| </main> |
| |
| |
| </div> |
| </div> |
| |
| <script src="../_static/scripts/pydata-sphinx-theme.js?digest=1999514e3f237ded88cf"></script> |
| |
| <!-- Based on pydata_sphinx_theme/footer.html --> |
| <footer class="footer mt-5 mt-md-0"> |
| <div class="container"> |
| |
| <div class="footer-item"> |
| <p class="copyright"> |
| © Copyright 2019-2024, Apache Software Foundation.<br> |
| </p> |
| </div> |
| |
| <div class="footer-item"> |
| <p class="sphinx-version"> |
| Created using <a href="http://sphinx-doc.org/">Sphinx</a> 8.1.3.<br> |
| </p> |
| </div> |
| |
| <div class="footer-item"> |
| <p>Apache Arrow DataFusion, Arrow DataFusion, Apache, the Apache feather logo, and the Apache Arrow DataFusion project logo</p> |
| <p>are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.</p> |
| </div> |
| </div> |
| </footer> |
| |
| |
| </body> |
| </html> |
