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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.rex</a></div>
<h2 title="Class RexInterpreter" class="title">Class RexInterpreter</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
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<li>org.apache.calcite.rex.RexInterpreter</li>
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<dt>All Implemented Interfaces:</dt>
<dd><code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a>&lt;java.lang.Comparable&gt;</code></dd>
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<pre>public class <span class="typeNameLabel">RexInterpreter</span>
extends java.lang.Object
implements <a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a>&lt;java.lang.Comparable&gt;</pre>
<div class="block">Evaluates <a href="RexNode.html" title="class in org.apache.calcite.rex"><code>RexNode</code></a> expressions.
<p>Caveats:
<ul>
<li>It uses interpretation, so it is not very efficient.
<li>It is intended for testing, so does not cover very many functions and
operators. (Feel free to contribute more!)
<li>It is not well tested.
</ul></div>
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<td class="colFirst"><code>(package private) static class&nbsp;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="RexInterpreter.Truthy.html" title="enum in org.apache.calcite.rex">RexInterpreter.Truthy</a></span></code></th>
<td class="colLast">
<div class="block">An enum that wraps boolean and unknown values and makes them
comparable.</div>
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<td class="colFirst"><code>private java.util.Map&lt;<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,&#8203;java.lang.Comparable&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#environment">environment</a></span></code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code>private static <a href="../rel/metadata/NullSentinel.html" title="enum in org.apache.calcite.rel.metadata">NullSentinel</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#N">N</a></span></code></th>
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<td class="colFirst"><code>private </code></td>
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.util.Map)">RexInterpreter</a></span>&#8203;(java.util.Map&lt;<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,&#8203;java.lang.Comparable&gt;&nbsp;environment)</code></th>
<td class="colLast">
<div class="block">Creates an interpreter.</div>
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<td class="colFirst"><code>private java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#case_(java.util.List)">case_</a></span>&#8203;(java.util.List&lt;java.lang.Comparable&gt;&nbsp;values)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>private java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#cast(org.apache.calcite.rex.RexCall,java.util.List)">cast</a></span>&#8203;(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call,
java.util.List&lt;java.lang.Comparable&gt;&nbsp;values)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>private java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ceil(org.apache.calcite.rex.RexCall,java.util.List)">ceil</a></span>&#8203;(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call,
java.util.List&lt;java.lang.Comparable&gt;&nbsp;values)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>private java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#coalesce(org.apache.calcite.rex.RexCall,java.util.List)">coalesce</a></span>&#8203;(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call,
java.util.List&lt;java.lang.Comparable&gt;&nbsp;values)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>private java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#compare(java.util.List,java.util.function.IntPredicate)">compare</a></span>&#8203;(java.util.List&lt;java.lang.Comparable&gt;&nbsp;values,
java.util.function.IntPredicate&nbsp;p)</code></th>
<td class="colLast">&nbsp;</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code>private boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#containsNull(java.util.List)">containsNull</a></span>&#8203;(java.util.List&lt;java.lang.Comparable&gt;&nbsp;values)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#evaluate(org.apache.calcite.rex.RexNode,java.util.Map)">evaluate</a></span>&#8203;(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e,
java.util.Map&lt;<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,&#8203;java.lang.Comparable&gt;&nbsp;map)</code></th>
<td class="colLast">
<div class="block">Evaluates an expression in an environment.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>private java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#extract(org.apache.calcite.rex.RexCall,java.util.List)">extract</a></span>&#8203;(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call,
java.util.List&lt;java.lang.Comparable&gt;&nbsp;values)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>private java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getOrUnbound(org.apache.calcite.rex.RexNode)">getOrUnbound</a></span>&#8203;(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>private java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#not(java.lang.Comparable)">not</a></span>&#8203;(java.lang.Comparable&nbsp;value)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>private java.math.BigDecimal</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#number(java.lang.Comparable)">number</a></span>&#8203;(java.lang.Comparable&nbsp;comparable)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>private org.apache.calcite.avatica.util.TimeUnitRange</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#subUnit(org.apache.calcite.avatica.util.TimeUnitRange)">subUnit</a></span>&#8203;(org.apache.calcite.avatica.util.TimeUnitRange&nbsp;unit)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>private java.lang.IllegalArgumentException</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#unbound(org.apache.calcite.rex.RexNode)">unbound</a></span>&#8203;(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitCall(org.apache.calcite.rex.RexCall)">visitCall</a></span>&#8203;(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitCorrelVariable(org.apache.calcite.rex.RexCorrelVariable)">visitCorrelVariable</a></span>&#8203;(<a href="RexCorrelVariable.html" title="class in org.apache.calcite.rex">RexCorrelVariable</a>&nbsp;correlVariable)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitDynamicParam(org.apache.calcite.rex.RexDynamicParam)">visitDynamicParam</a></span>&#8203;(<a href="RexDynamicParam.html" title="class in org.apache.calcite.rex">RexDynamicParam</a>&nbsp;dynamicParam)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitFieldAccess(org.apache.calcite.rex.RexFieldAccess)">visitFieldAccess</a></span>&#8203;(<a href="RexFieldAccess.html" title="class in org.apache.calcite.rex">RexFieldAccess</a>&nbsp;fieldAccess)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitInputRef(org.apache.calcite.rex.RexInputRef)">visitInputRef</a></span>&#8203;(<a href="RexInputRef.html" title="class in org.apache.calcite.rex">RexInputRef</a>&nbsp;inputRef)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitLiteral(org.apache.calcite.rex.RexLiteral)">visitLiteral</a></span>&#8203;(<a href="RexLiteral.html" title="class in org.apache.calcite.rex">RexLiteral</a>&nbsp;literal)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitLocalRef(org.apache.calcite.rex.RexLocalRef)">visitLocalRef</a></span>&#8203;(<a href="RexLocalRef.html" title="class in org.apache.calcite.rex">RexLocalRef</a>&nbsp;localRef)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitOver(org.apache.calcite.rex.RexOver)">visitOver</a></span>&#8203;(<a href="RexOver.html" title="class in org.apache.calcite.rex">RexOver</a>&nbsp;over)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitPatternFieldRef(org.apache.calcite.rex.RexPatternFieldRef)">visitPatternFieldRef</a></span>&#8203;(<a href="RexPatternFieldRef.html" title="class in org.apache.calcite.rex">RexPatternFieldRef</a>&nbsp;fieldRef)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitRangeRef(org.apache.calcite.rex.RexRangeRef)">visitRangeRef</a></span>&#8203;(<a href="RexRangeRef.html" title="class in org.apache.calcite.rex">RexRangeRef</a>&nbsp;rangeRef)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitSubQuery(org.apache.calcite.rex.RexSubQuery)">visitSubQuery</a></span>&#8203;(<a href="RexSubQuery.html" title="class in org.apache.calcite.rex">RexSubQuery</a>&nbsp;subQuery)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code>java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visitTableInputRef(org.apache.calcite.rex.RexTableInputRef)">visitTableInputRef</a></span>&#8203;(<a href="RexTableInputRef.html" title="class in org.apache.calcite.rex">RexTableInputRef</a>&nbsp;fieldRef)</code></th>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>N</h4>
<pre>private static final&nbsp;<a href="../rel/metadata/NullSentinel.html" title="enum in org.apache.calcite.rel.metadata">NullSentinel</a> N</pre>
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<h4>environment</h4>
<pre>private final&nbsp;java.util.Map&lt;<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,&#8203;java.lang.Comparable&gt; environment</pre>
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<h4>RexInterpreter</h4>
<pre>private&nbsp;RexInterpreter&#8203;(java.util.Map&lt;<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,&#8203;java.lang.Comparable&gt;&nbsp;environment)</pre>
<div class="block">Creates an interpreter.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>environment</code> - Values of certain expressions (usually
<a href="RexInputRef.html" title="class in org.apache.calcite.rex"><code>RexInputRef</code></a>s)</dd>
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<h4>evaluate</h4>
<pre class="methodSignature">public static&nbsp;java.lang.Comparable&nbsp;evaluate&#8203;(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e,
java.util.Map&lt;<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,&#8203;java.lang.Comparable&gt;&nbsp;map)</pre>
<div class="block">Evaluates an expression in an environment.</div>
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<pre class="methodSignature">private&nbsp;java.lang.IllegalArgumentException&nbsp;unbound&#8203;(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e)</pre>
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<pre class="methodSignature">private&nbsp;java.lang.Comparable&nbsp;getOrUnbound&#8203;(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e)</pre>
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<pre class="methodSignature">public&nbsp;java.lang.Comparable&nbsp;visitInputRef&#8203;(<a href="RexInputRef.html" title="class in org.apache.calcite.rex">RexInputRef</a>&nbsp;inputRef)</pre>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="RexVisitor.html#visitInputRef(org.apache.calcite.rex.RexInputRef)">visitInputRef</a></code>&nbsp;in interface&nbsp;<code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a>&lt;java.lang.Comparable&gt;</code></dd>
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<pre class="methodSignature">public&nbsp;java.lang.Comparable&nbsp;visitLocalRef&#8203;(<a href="RexLocalRef.html" title="class in org.apache.calcite.rex">RexLocalRef</a>&nbsp;localRef)</pre>
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<dd><code><a href="RexVisitor.html#visitLocalRef(org.apache.calcite.rex.RexLocalRef)">visitLocalRef</a></code>&nbsp;in interface&nbsp;<code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a>&lt;java.lang.Comparable&gt;</code></dd>
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<pre class="methodSignature">public&nbsp;java.lang.Comparable&nbsp;visitLiteral&#8203;(<a href="RexLiteral.html" title="class in org.apache.calcite.rex">RexLiteral</a>&nbsp;literal)</pre>
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<dd><code><a href="RexVisitor.html#visitLiteral(org.apache.calcite.rex.RexLiteral)">visitLiteral</a></code>&nbsp;in interface&nbsp;<code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a>&lt;java.lang.Comparable&gt;</code></dd>
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<pre class="methodSignature">public&nbsp;java.lang.Comparable&nbsp;visitOver&#8203;(<a href="RexOver.html" title="class in org.apache.calcite.rex">RexOver</a>&nbsp;over)</pre>
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<dd><code><a href="RexVisitor.html#visitOver(org.apache.calcite.rex.RexOver)">visitOver</a></code>&nbsp;in interface&nbsp;<code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a>&lt;java.lang.Comparable&gt;</code></dd>
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<pre class="methodSignature">public&nbsp;java.lang.Comparable&nbsp;visitCorrelVariable&#8203;(<a href="RexCorrelVariable.html" title="class in org.apache.calcite.rex">RexCorrelVariable</a>&nbsp;correlVariable)</pre>
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<pre class="methodSignature">public&nbsp;java.lang.Comparable&nbsp;visitDynamicParam&#8203;(<a href="RexDynamicParam.html" title="class in org.apache.calcite.rex">RexDynamicParam</a>&nbsp;dynamicParam)</pre>
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<dd><code><a href="RexVisitor.html#visitDynamicParam(org.apache.calcite.rex.RexDynamicParam)">visitDynamicParam</a></code>&nbsp;in interface&nbsp;<code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a>&lt;java.lang.Comparable&gt;</code></dd>
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<pre class="methodSignature">public&nbsp;java.lang.Comparable&nbsp;visitRangeRef&#8203;(<a href="RexRangeRef.html" title="class in org.apache.calcite.rex">RexRangeRef</a>&nbsp;rangeRef)</pre>
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<dd><code><a href="RexVisitor.html#visitRangeRef(org.apache.calcite.rex.RexRangeRef)">visitRangeRef</a></code>&nbsp;in interface&nbsp;<code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a>&lt;java.lang.Comparable&gt;</code></dd>
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<pre class="methodSignature">public&nbsp;java.lang.Comparable&nbsp;visitFieldAccess&#8203;(<a href="RexFieldAccess.html" title="class in org.apache.calcite.rex">RexFieldAccess</a>&nbsp;fieldAccess)</pre>
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<pre class="methodSignature">public&nbsp;java.lang.Comparable&nbsp;visitSubQuery&#8203;(<a href="RexSubQuery.html" title="class in org.apache.calcite.rex">RexSubQuery</a>&nbsp;subQuery)</pre>
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<pre class="methodSignature">public&nbsp;java.lang.Comparable&nbsp;visitTableInputRef&#8203;(<a href="RexTableInputRef.html" title="class in org.apache.calcite.rex">RexTableInputRef</a>&nbsp;fieldRef)</pre>
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<dd><code><a href="RexVisitor.html#visitTableInputRef(org.apache.calcite.rex.RexTableInputRef)">visitTableInputRef</a></code>&nbsp;in interface&nbsp;<code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a>&lt;java.lang.Comparable&gt;</code></dd>
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<pre class="methodSignature">public&nbsp;java.lang.Comparable&nbsp;visitPatternFieldRef&#8203;(<a href="RexPatternFieldRef.html" title="class in org.apache.calcite.rex">RexPatternFieldRef</a>&nbsp;fieldRef)</pre>
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<dd><code><a href="RexVisitor.html#visitPatternFieldRef(org.apache.calcite.rex.RexPatternFieldRef)">visitPatternFieldRef</a></code>&nbsp;in interface&nbsp;<code><a href="RexVisitor.html" title="interface in org.apache.calcite.rex">RexVisitor</a>&lt;java.lang.Comparable&gt;</code></dd>
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<pre class="methodSignature">public&nbsp;java.lang.Comparable&nbsp;visitCall&#8203;(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</pre>
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<pre class="methodSignature">private&nbsp;java.lang.Comparable&nbsp;extract&#8203;(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call,
java.util.List&lt;java.lang.Comparable&gt;&nbsp;values)</pre>
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<pre class="methodSignature">private&nbsp;java.lang.Comparable&nbsp;coalesce&#8203;(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call,
java.util.List&lt;java.lang.Comparable&gt;&nbsp;values)</pre>
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<pre class="methodSignature">private&nbsp;java.lang.Comparable&nbsp;ceil&#8203;(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call,
java.util.List&lt;java.lang.Comparable&gt;&nbsp;values)</pre>
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<pre class="methodSignature">private&nbsp;org.apache.calcite.avatica.util.TimeUnitRange&nbsp;subUnit&#8203;(org.apache.calcite.avatica.util.TimeUnitRange&nbsp;unit)</pre>
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<pre class="methodSignature">private&nbsp;java.lang.Comparable&nbsp;cast&#8203;(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call,
java.util.List&lt;java.lang.Comparable&gt;&nbsp;values)</pre>
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<pre class="methodSignature">private&nbsp;java.lang.Comparable&nbsp;not&#8203;(java.lang.Comparable&nbsp;value)</pre>
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<pre class="methodSignature">private&nbsp;java.lang.Comparable&nbsp;case_&#8203;(java.util.List&lt;java.lang.Comparable&gt;&nbsp;values)</pre>
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<pre class="methodSignature">private&nbsp;java.math.BigDecimal&nbsp;number&#8203;(java.lang.Comparable&nbsp;comparable)</pre>
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<pre class="methodSignature">private&nbsp;java.lang.Comparable&nbsp;compare&#8203;(java.util.List&lt;java.lang.Comparable&gt;&nbsp;values,
java.util.function.IntPredicate&nbsp;p)</pre>
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<pre class="methodSignature">private&nbsp;boolean&nbsp;containsNull&#8203;(java.util.List&lt;java.lang.Comparable&gt;&nbsp;values)</pre>
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