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| <section id="pyarrow-dataset-expression"> |
| <h1>pyarrow.dataset.Expression<a class="headerlink" href="#pyarrow-dataset-expression" title="Permalink to this heading">#</a></h1> |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="pyarrow.dataset.Expression"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">pyarrow.dataset.</span></span><span class="sig-name descname"><span class="pre">Expression</span></span><a class="headerlink" href="#pyarrow.dataset.Expression" title="Permalink to this definition">#</a></dt> |
| <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">_Weakrefable</span></code></p> |
| <p>A logical expression to be evaluated against some input.</p> |
| <p>To create an expression:</p> |
| <ul class="simple"> |
| <li><p>Use the factory function <code class="docutils literal notranslate"><span class="pre">pyarrow.compute.scalar()</span></code> to create a |
| scalar (not necessary when combined, see example below).</p></li> |
| <li><p>Use the factory function <code class="docutils literal notranslate"><span class="pre">pyarrow.compute.field()</span></code> to reference |
| a field (column in table).</p></li> |
| <li><p>Compare fields and scalars with <code class="docutils literal notranslate"><span class="pre"><</span></code>, <code class="docutils literal notranslate"><span class="pre"><=</span></code>, <code class="docutils literal notranslate"><span class="pre">==</span></code>, <code class="docutils literal notranslate"><span class="pre">>=</span></code>, <code class="docutils literal notranslate"><span class="pre">></span></code>.</p></li> |
| <li><p>Combine expressions using python operators <code class="docutils literal notranslate"><span class="pre">&</span></code> (logical and), |
| <code class="docutils literal notranslate"><span class="pre">|</span></code> (logical or) and <code class="docutils literal notranslate"><span class="pre">~</span></code> (logical not). |
| Note: python keywords <code class="docutils literal notranslate"><span class="pre">and</span></code>, <code class="docutils literal notranslate"><span class="pre">or</span></code> and <code class="docutils literal notranslate"><span class="pre">not</span></code> cannot be used |
| to combine expressions.</p></li> |
| <li><p>Create expression predicates using Expression methods such as |
| <code class="docutils literal notranslate"><span class="pre">pyarrow.compute.Expression.isin()</span></code>.</p></li> |
| </ul> |
| <p class="rubric">Examples</p> |
| <div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">import</span> <span class="nn">pyarrow.compute</span> <span class="k">as</span> <span class="nn">pc</span> |
| <span class="gp">>>> </span><span class="p">(</span><span class="n">pc</span><span class="o">.</span><span class="n">field</span><span class="p">(</span><span class="s2">"a"</span><span class="p">)</span> <span class="o"><</span> <span class="n">pc</span><span class="o">.</span><span class="n">scalar</span><span class="p">(</span><span class="mi">3</span><span class="p">))</span> <span class="o">|</span> <span class="p">(</span><span class="n">pc</span><span class="o">.</span><span class="n">field</span><span class="p">(</span><span class="s2">"b"</span><span class="p">)</span> <span class="o">></span> <span class="mi">7</span><span class="p">)</span> |
| <span class="go"><pyarrow.compute.Expression ((a < 3) or (b > 7))></span> |
| <span class="gp">>>> </span><span class="n">pc</span><span class="o">.</span><span class="n">field</span><span class="p">(</span><span class="s1">'a'</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">3</span> |
| <span class="go"><pyarrow.compute.Expression (a != 3)></span> |
| <span class="gp">>>> </span><span class="n">pc</span><span class="o">.</span><span class="n">field</span><span class="p">(</span><span class="s1">'a'</span><span class="p">)</span><span class="o">.</span><span class="n">isin</span><span class="p">([</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">])</span> |
| <span class="go"><pyarrow.compute.Expression is_in(a, {value_set=int64:[</span> |
| <span class="go"> 1,</span> |
| <span class="go"> 2,</span> |
| <span class="go"> 3</span> |
| <span class="go">], null_matching_behavior=MATCH})></span> |
| </pre></div> |
| </div> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.dataset.Expression.__init__"> |
| <span class="sig-name descname"><span class="pre">__init__</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">args</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.dataset.Expression.__init__" title="Permalink to this definition">#</a></dt> |
| <dd></dd></dl> |
| |
| <p class="rubric">Methods</p> |
| <table class="autosummary longtable table autosummary"> |
| <tbody> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.dataset.Expression.__init__" title="pyarrow.dataset.Expression.__init__"><code class="xref py py-obj docutils literal notranslate"><span class="pre">__init__</span></code></a>(*args, **kwargs)</p></td> |
| <td><p></p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.dataset.Expression.cast" title="pyarrow.dataset.Expression.cast"><code class="xref py py-obj docutils literal notranslate"><span class="pre">cast</span></code></a>(self[, type, safe, options])</p></td> |
| <td><p>Explicitly set or change the expression's data type.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.dataset.Expression.equals" title="pyarrow.dataset.Expression.equals"><code class="xref py py-obj docutils literal notranslate"><span class="pre">equals</span></code></a>(self, Expression other)</p></td> |
| <td><p><dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><p></p></dd> |
| </dl> |
| </p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.dataset.Expression.from_substrait" title="pyarrow.dataset.Expression.from_substrait"><code class="xref py py-obj docutils literal notranslate"><span class="pre">from_substrait</span></code></a>(buffer)</p></td> |
| <td><p>Deserialize an expression from Substrait</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.dataset.Expression.is_nan" title="pyarrow.dataset.Expression.is_nan"><code class="xref py py-obj docutils literal notranslate"><span class="pre">is_nan</span></code></a>(self)</p></td> |
| <td><p>Check whether the expression is NaN.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.dataset.Expression.is_null" title="pyarrow.dataset.Expression.is_null"><code class="xref py py-obj docutils literal notranslate"><span class="pre">is_null</span></code></a>(self, bool nan_is_null=False)</p></td> |
| <td><p>Check whether the expression is null.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.dataset.Expression.is_valid" title="pyarrow.dataset.Expression.is_valid"><code class="xref py py-obj docutils literal notranslate"><span class="pre">is_valid</span></code></a>(self)</p></td> |
| <td><p>Check whether the expression is not-null (valid).</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="#pyarrow.dataset.Expression.isin" title="pyarrow.dataset.Expression.isin"><code class="xref py py-obj docutils literal notranslate"><span class="pre">isin</span></code></a>(self, values)</p></td> |
| <td><p>Check whether the expression is contained in values.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="#pyarrow.dataset.Expression.to_substrait" title="pyarrow.dataset.Expression.to_substrait"><code class="xref py py-obj docutils literal notranslate"><span class="pre">to_substrait</span></code></a>(self, Schema schema, ...)</p></td> |
| <td><p>Serialize the expression using Substrait</p></td> |
| </tr> |
| </tbody> |
| </table> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.dataset.Expression.cast"> |
| <span class="sig-name descname"><span class="pre">cast</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">safe</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">options</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.dataset.Expression.cast" title="Permalink to this definition">#</a></dt> |
| <dd><p>Explicitly set or change the expression’s data type.</p> |
| <p>This creates a new expression equivalent to calling the |
| <cite>cast</cite> compute function on this expression.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>type</strong><span class="classifier"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataType</span></code>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Type to cast array to.</p> |
| </dd> |
| <dt><strong>safe</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#True" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">True</span></code></a></span></dt><dd><p>Whether to check for conversion errors such as overflow.</p> |
| </dd> |
| <dt><strong>options</strong><span class="classifier"><code class="xref py py-obj docutils literal notranslate"><span class="pre">CastOptions</span></code>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Additional checks pass by CastOptions</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><dl> |
| <dt><strong>cast</strong><span class="classifier"><a class="reference internal" href="#pyarrow.dataset.Expression" title="pyarrow.dataset.Expression"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Expression</span></code></a></span></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.dataset.Expression.equals"> |
| <span class="sig-name descname"><span class="pre">equals</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">Expression</span> <span class="pre">other</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.dataset.Expression.equals" title="Permalink to this definition">#</a></dt> |
| <dd><dl class="field-list"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>other</strong><span class="classifier"><a class="reference internal" href="#pyarrow.dataset.Expression" title="pyarrow.dataset.Expression"><code class="xref py py-obj docutils literal notranslate"><span class="pre">pyarrow.dataset.Expression</span></code></a></span></dt><dd></dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><dl class="simple"> |
| <dt><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.dataset.Expression.from_substrait"> |
| <em class="property"><span class="pre">static</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">from_substrait</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">buffer</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.dataset.Expression.from_substrait" title="Permalink to this definition">#</a></dt> |
| <dd><p>Deserialize an expression from Substrait</p> |
| <p>The serialized message must be an ExtendedExpression message that has |
| only a single expression. The name of the expression and the schema |
| the expression was bound to will be ignored. Use |
| pyarrow.substrait.deserialize_expressions if this information is needed |
| or if the message might contain multiple expressions.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>buffer</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bytes" title="(in Python v3.12)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">bytes</span></code></a> or <code class="xref py py-obj docutils literal notranslate"><span class="pre">Buffer</span></code></span></dt><dd><p>The Substrait message to deserialize</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><dl class="simple"> |
| <dt><a class="reference internal" href="#pyarrow.dataset.Expression" title="pyarrow.dataset.Expression"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Expression</span></code></a></dt><dd><p>The deserialized expression</p> |
| </dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.dataset.Expression.is_nan"> |
| <span class="sig-name descname"><span class="pre">is_nan</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.dataset.Expression.is_nan" title="Permalink to this definition">#</a></dt> |
| <dd><p>Check whether the expression is NaN.</p> |
| <p>This creates a new expression equivalent to calling the |
| <cite>is_nan</cite> compute function on this expression.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Returns<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>is_nan</strong><span class="classifier"><a class="reference internal" href="#pyarrow.dataset.Expression" title="pyarrow.dataset.Expression"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Expression</span></code></a></span></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.dataset.Expression.is_null"> |
| <span class="sig-name descname"><span class="pre">is_null</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">nan_is_null=False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.dataset.Expression.is_null" title="Permalink to this definition">#</a></dt> |
| <dd><p>Check whether the expression is null.</p> |
| <p>This creates a new expression equivalent to calling the |
| <cite>is_null</cite> compute function on this expression.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>nan_is_null</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>Whether floating-point NaNs are considered null.</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><dl> |
| <dt><strong>is_null</strong><span class="classifier"><a class="reference internal" href="#pyarrow.dataset.Expression" title="pyarrow.dataset.Expression"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Expression</span></code></a></span></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.dataset.Expression.is_valid"> |
| <span class="sig-name descname"><span class="pre">is_valid</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.dataset.Expression.is_valid" title="Permalink to this definition">#</a></dt> |
| <dd><p>Check whether the expression is not-null (valid).</p> |
| <p>This creates a new expression equivalent to calling the |
| <cite>is_valid</cite> compute function on this expression.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Returns<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>is_valid</strong><span class="classifier"><a class="reference internal" href="#pyarrow.dataset.Expression" title="pyarrow.dataset.Expression"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Expression</span></code></a></span></dt><dd></dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.dataset.Expression.isin"> |
| <span class="sig-name descname"><span class="pre">isin</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">values</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.dataset.Expression.isin" title="Permalink to this definition">#</a></dt> |
| <dd><p>Check whether the expression is contained in values.</p> |
| <p>This creates a new expression equivalent to calling the |
| <cite>is_in</cite> compute function on this expression.</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>values</strong><span class="classifier"><a class="reference internal" href="pyarrow.Array.html#pyarrow.Array" title="pyarrow.Array"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Array</span></code></a> or <a class="reference external" href="https://docs.python.org/3/glossary.html#term-iterable" title="(in Python v3.12)"><span>iterable</span></a></span></dt><dd><p>The values to check for.</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><dl> |
| <dt><strong>isin</strong><span class="classifier"><a class="reference internal" href="#pyarrow.dataset.Expression" title="pyarrow.dataset.Expression"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Expression</span></code></a></span></dt><dd><p>A new expression that, when evaluated, checks whether |
| this expression’s value is contained in <cite>values</cite>.</p> |
| </dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="pyarrow.dataset.Expression.to_substrait"> |
| <span class="sig-name descname"><span class="pre">to_substrait</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">Schema</span> <span class="pre">schema</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">bool</span> <span class="pre">allow_arrow_extensions=False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#pyarrow.dataset.Expression.to_substrait" title="Permalink to this definition">#</a></dt> |
| <dd><p>Serialize the expression using Substrait</p> |
| <p>The expression will be serialized as an ExtendedExpression message that has a |
| single expression named “expression”</p> |
| <dl class="field-list"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><dl> |
| <dt><strong>schema</strong><span class="classifier"><a class="reference internal" href="pyarrow.Schema.html#pyarrow.Schema" title="pyarrow.Schema"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Schema</span></code></a></span></dt><dd><p>The input schema the expression will be bound to</p> |
| </dd> |
| <dt><strong>allow_arrow_extensions</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>If False then only functions that are part of the core Substrait function |
| definitions will be allowed. Set this to True to allow pyarrow-specific functions |
| but the result may not be accepted by other compute libraries.</p> |
| </dd> |
| </dl> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><dl class="simple"> |
| <dt><code class="xref py py-obj docutils literal notranslate"><span class="pre">Buffer</span></code></dt><dd><p>A buffer containing the serialized Protobuf plan.</p> |
| </dd> |
| </dl> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| </dd></dl> |
| |
| </section> |
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| <li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.dataset.Expression"><code class="docutils literal notranslate"><span class="pre">Expression</span></code></a><ul class="visible nav section-nav flex-column"> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.dataset.Expression.__init__"><code class="docutils literal notranslate"><span class="pre">Expression.__init__()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.dataset.Expression.cast"><code class="docutils literal notranslate"><span class="pre">Expression.cast()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.dataset.Expression.equals"><code class="docutils literal notranslate"><span class="pre">Expression.equals()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.dataset.Expression.from_substrait"><code class="docutils literal notranslate"><span class="pre">Expression.from_substrait()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.dataset.Expression.is_nan"><code class="docutils literal notranslate"><span class="pre">Expression.is_nan()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.dataset.Expression.is_null"><code class="docutils literal notranslate"><span class="pre">Expression.is_null()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.dataset.Expression.is_valid"><code class="docutils literal notranslate"><span class="pre">Expression.is_valid()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.dataset.Expression.isin"><code class="docutils literal notranslate"><span class="pre">Expression.isin()</span></code></a></li> |
| <li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#pyarrow.dataset.Expression.to_substrait"><code class="docutils literal notranslate"><span class="pre">Expression.to_substrait()</span></code></a></li> |
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