javadocAggregate/org/apache/calcite/rex/RexSimplify.html - calcite-site - Git at Google

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 <div class="header">
 <div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.rex</a></div>
 <h1 title="Class RexSimplify" class="title">Class RexSimplify</h1>
 </div>
 <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
 <div class="inheritance">org.apache.calcite.rex.RexSimplify</div>
 </div>
 <section class="class-description" id="class-description">
 <hr>
 <div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">RexSimplify</span>
 <span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></span></div>
 <div class="block">Context required to simplify a row-expression.</div>
 </section>
 <section class="summary">
 <ul class="summary-list">
 <!-- =========== FIELD SUMMARY =========== -->
 <li>
 <section class="field-summary" id="field-summary">
 <h2>Field Summary</h2>
 <div class="caption"><span>Fields</span></div>
 <div class="summary-table three-column-summary">
 <div class="table-header col-first">Modifier and Type</div>
 <div class="table-header col-second">Field</div>
 <div class="table-header col-last">Description</div>
 <div class="col-first even-row-color"><code>final <a href="RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a></code></div>
 <div class="col-second even-row-color"><code><a href="#rexBuilder" class="member-name-link">rexBuilder</a></code></div>
 <div class="col-last even-row-color">&nbsp;</div>
 </div>
 </section>
 </li>
 <!-- ======== CONSTRUCTOR SUMMARY ======== -->
 <li>
 <section class="constructor-summary" id="constructor-summary">
 <h2>Constructor Summary</h2>
 <div class="caption"><span>Constructors</span></div>
 <div class="summary-table two-column-summary">
 <div class="table-header col-first">Constructor</div>
 <div class="table-header col-last">Description</div>
 <div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(org.apache.calcite.rex.RexBuilder,boolean,org.apache.calcite.rex.RexExecutor)" class="member-name-link">RexSimplify</a><wbr>(<a href="RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a>&nbsp;rexBuilder,
  boolean&nbsp;unknownAsFalse,
  <a href="RexExecutor.html" title="interface in org.apache.calcite.rex">RexExecutor</a>&nbsp;executor)</code></div>
 <div class="col-last even-row-color">
 <div class="block"><span class="deprecated-label">Deprecated.</span></div>
 </div>
 <div class="col-constructor-name odd-row-color"><code><a href="#%3Cinit%3E(org.apache.calcite.rex.RexBuilder,org.apache.calcite.plan.RelOptPredicateList,boolean,org.apache.calcite.rex.RexExecutor)" class="member-name-link">RexSimplify</a><wbr>(<a href="RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a>&nbsp;rexBuilder,
  <a href="../plan/RelOptPredicateList.html" title="class in org.apache.calcite.plan">RelOptPredicateList</a>&nbsp;predicates,
  boolean&nbsp;unknownAsFalse,
  <a href="RexExecutor.html" title="interface in org.apache.calcite.rex">RexExecutor</a>&nbsp;executor)</code></div>
 <div class="col-last odd-row-color">
 <div class="block"><span class="deprecated-label">Deprecated.</span></div>
 </div>
 <div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(org.apache.calcite.rex.RexBuilder,org.apache.calcite.plan.RelOptPredicateList,org.apache.calcite.rex.RexExecutor)" class="member-name-link">RexSimplify</a><wbr>(<a href="RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a>&nbsp;rexBuilder,
  <a href="../plan/RelOptPredicateList.html" title="class in org.apache.calcite.plan">RelOptPredicateList</a>&nbsp;predicates,
  <a href="RexExecutor.html" title="interface in org.apache.calcite.rex">RexExecutor</a>&nbsp;executor)</code></div>
 <div class="col-last even-row-color">
 <div class="block">Creates a RexSimplify.</div>
 </div>
 </div>
 </section>
 </li>
 <!-- ========== METHOD SUMMARY =========== -->
 <li>
 <section class="method-summary" id="method-summary">
 <h2>Method Summary</h2>
 <div id="method-summary-table">
 <div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button><button id="method-summary-table-tab6" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab6', 3)" class="table-tab">Deprecated Methods</button></div>
 <div id="method-summary-table.tabpanel" role="tabpanel">
 <div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
 <div class="table-header col-first">Modifier and Type</div>
 <div class="table-header col-second">Method</div>
 <div class="table-header col-last">Description</div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#removeNullabilityCast(org.apache.calcite.rex.RexNode)" class="member-name-link">removeNullabilityCast</a><wbr>(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Removes any casts that change nullability but not type.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#simplify(org.apache.calcite.rex.RexNode)" class="member-name-link">simplify</a><wbr>(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Simplifies a boolean expression.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6"><code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6"><code><a href="#simplifyAnd(org.apache.calcite.rex.RexCall)" class="member-name-link">simplifyAnd</a><wbr>(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;e)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6">
 <div class="block"><span class="deprecated-label">Deprecated.</span></div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6"><code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6"><code><a href="#simplifyAnds(java.lang.Iterable)" class="member-name-link">simplifyAnds</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Iterable.html" title="class or interface in java.lang" class="external-link">Iterable</a>&lt;? extends <a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;&nbsp;nodes)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6">
 <div class="block"><span class="deprecated-label">Deprecated.</span></div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>@Nullable <a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#simplifyFilterPredicates(java.lang.Iterable)" class="member-name-link">simplifyFilterPredicates</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Iterable.html" title="class or interface in java.lang" class="external-link">Iterable</a>&lt;? extends <a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;&nbsp;predicates)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Combines predicates AND, optimizes, and returns null if the result is
  always false.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6"><code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6"><code><a href="#simplifyOr(org.apache.calcite.rex.RexCall)" class="member-name-link">simplifyOr</a><wbr>(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6">
 <div class="block"><span class="deprecated-label">Deprecated.</span></div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6"><code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6"><code><a href="#simplifyOrs(java.util.List)" class="member-name-link">simplifyOrs</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;&nbsp;terms)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6">
 <div class="block"><span class="deprecated-label">Deprecated.</span></div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#simplifyPreservingType(org.apache.calcite.rex.RexNode)" class="member-name-link">simplifyPreservingType</a><wbr>(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Simplifies a boolean expression, always preserving its type and its
  nullability.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#simplifyPreservingType(org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexUnknownAs,boolean)" class="member-name-link">simplifyPreservingType</a><wbr>(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e,
  <a href="RexUnknownAs.html" title="enum in org.apache.calcite.rex">RexUnknownAs</a>&nbsp;unknownAs,
  boolean&nbsp;matchNullability)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#simplifyUnknownAs(org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexUnknownAs)" class="member-name-link">simplifyUnknownAs</a><wbr>(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e,
  <a href="RexUnknownAs.html" title="enum in org.apache.calcite.rex">RexUnknownAs</a>&nbsp;unknownAs)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">As <a href="#simplify(org.apache.calcite.rex.RexNode)"><code>simplify(RexNode)</code></a>, but specifying how UNKNOWN values are to be
  treated.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final <a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#simplifyUnknownAsFalse(org.apache.calcite.rex.RexNode)" class="member-name-link">simplifyUnknownAsFalse</a><wbr>(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">As <a href="#simplify(org.apache.calcite.rex.RexNode)"><code>simplify(RexNode)</code></a>, but for a boolean expression
  for which a result of UNKNOWN will be treated as FALSE.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="RexSimplify.html" title="class in org.apache.calcite.rex">RexSimplify</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#withParanoid(boolean)" class="member-name-link">withParanoid</a><wbr>(boolean&nbsp;paranoid)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Returns a RexSimplify the same as this but which verifies that
  the expression before and after simplification are equivalent.</div>
 </div>
 <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="RexSimplify.html" title="class in org.apache.calcite.rex">RexSimplify</a></code></div>
 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#withPredicates(org.apache.calcite.plan.RelOptPredicateList)" class="member-name-link">withPredicates</a><wbr>(<a href="../plan/RelOptPredicateList.html" title="class in org.apache.calcite.plan">RelOptPredicateList</a>&nbsp;predicates)</code></div>
 <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
 <div class="block">Returns a RexSimplify the same as this but with a specified
  <code>predicates</code> value.</div>
 </div>
 <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6"><code><a href="RexSimplify.html" title="class in org.apache.calcite.rex">RexSimplify</a></code></div>
 <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6"><code><a href="#withUnknownAsFalse(boolean)" class="member-name-link">withUnknownAsFalse</a><wbr>(boolean&nbsp;unknownAsFalse)</code></div>
 <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4 method-summary-table-tab6">
 <div class="block"><span class="deprecated-label">Deprecated.</span>
 <div class="deprecation-comment">Use methods with a <a href="RexUnknownAs.html" title="enum in org.apache.calcite.rex"><code>RexUnknownAs</code></a> argument, such as
  <code>simplify(RexNode, RexUnknownAs)</code>.</div>
 </div>
 </div>
 </div>
 </div>
 </div>
 <div class="inherited-list">
 <h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
 <code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
 </section>
 </li>
 </ul>
 </section>
 <section class="details">
 <ul class="details-list">
 <!-- ============ FIELD DETAIL =========== -->
 <li>
 <section class="field-details" id="field-detail">
 <h2>Field Details</h2>
 <ul class="member-list">
 <li>
 <section class="detail" id="rexBuilder">
 <h3>rexBuilder</h3>
 <div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type"><a href="RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a></span>&nbsp;<span class="element-name">rexBuilder</span></div>
 </section>
 </li>
 </ul>
 </section>
 </li>
 <!-- ========= CONSTRUCTOR DETAIL ======== -->
 <li>
 <section class="constructor-details" id="constructor-detail">
 <h2>Constructor Details</h2>
 <ul class="member-list">
 <li>
 <section class="detail" id="&lt;init&gt;(org.apache.calcite.rex.RexBuilder,org.apache.calcite.plan.RelOptPredicateList,org.apache.calcite.rex.RexExecutor)">
 <h3>RexSimplify</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">RexSimplify</span><wbr><span class="parameters">(<a href="RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a>&nbsp;rexBuilder,
  <a href="../plan/RelOptPredicateList.html" title="class in org.apache.calcite.plan">RelOptPredicateList</a>&nbsp;predicates,
  <a href="RexExecutor.html" title="interface in org.apache.calcite.rex">RexExecutor</a>&nbsp;executor)</span></div>
 <div class="block">Creates a RexSimplify.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>rexBuilder</code> - Rex builder</dd>
 <dd><code>predicates</code> - Predicates known to hold on input fields</dd>
 <dd><code>executor</code> - Executor for constant reduction, not null</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="&lt;init&gt;(org.apache.calcite.rex.RexBuilder,boolean,org.apache.calcite.rex.RexExecutor)">
 <h3>RexSimplify</h3>
 <div class="member-signature"><span class="annotations"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Deprecated.html" title="class or interface in java.lang" class="external-link">@Deprecated</a>
 </span><span class="modifiers">public</span>&nbsp;<span class="element-name">RexSimplify</span><wbr><span class="parameters">(<a href="RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a>&nbsp;rexBuilder,
  boolean&nbsp;unknownAsFalse,
  <a href="RexExecutor.html" title="interface in org.apache.calcite.rex">RexExecutor</a>&nbsp;executor)</span></div>
 <div class="deprecation-block"><span class="deprecated-label">Deprecated.</span></div>
 </section>
 </li>
 <li>
 <section class="detail" id="&lt;init&gt;(org.apache.calcite.rex.RexBuilder,org.apache.calcite.plan.RelOptPredicateList,boolean,org.apache.calcite.rex.RexExecutor)">
 <h3>RexSimplify</h3>
 <div class="member-signature"><span class="annotations"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Deprecated.html" title="class or interface in java.lang" class="external-link">@Deprecated</a>
 </span><span class="modifiers">public</span>&nbsp;<span class="element-name">RexSimplify</span><wbr><span class="parameters">(<a href="RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a>&nbsp;rexBuilder,
  <a href="../plan/RelOptPredicateList.html" title="class in org.apache.calcite.plan">RelOptPredicateList</a>&nbsp;predicates,
  boolean&nbsp;unknownAsFalse,
  <a href="RexExecutor.html" title="interface in org.apache.calcite.rex">RexExecutor</a>&nbsp;executor)</span></div>
 <div class="deprecation-block"><span class="deprecated-label">Deprecated.</span></div>
 </section>
 </li>
 </ul>
 </section>
 </li>
 <!-- ============ METHOD DETAIL ========== -->
 <li>
 <section class="method-details" id="method-detail">
 <h2>Method Details</h2>
 <ul class="member-list">
 <li>
 <section class="detail" id="withUnknownAsFalse(boolean)">
 <h3>withUnknownAsFalse</h3>
 <div class="member-signature"><span class="annotations"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Deprecated.html" title="class or interface in java.lang" class="external-link">@Deprecated</a>
 </span><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="RexSimplify.html" title="class in org.apache.calcite.rex">RexSimplify</a></span>&nbsp;<span class="element-name">withUnknownAsFalse</span><wbr><span class="parameters">(boolean&nbsp;unknownAsFalse)</span></div>
 <div class="deprecation-block"><span class="deprecated-label">Deprecated.</span>
 <div class="deprecation-comment">Use methods with a <a href="RexUnknownAs.html" title="enum in org.apache.calcite.rex"><code>RexUnknownAs</code></a> argument, such as
  <code>simplify(RexNode, RexUnknownAs)</code>.</div>
 </div>
 <div class="block">Returns a RexSimplify the same as this but with a specified
  <code>defaultUnknownAs</code> value.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="withPredicates(org.apache.calcite.plan.RelOptPredicateList)">
 <h3>withPredicates</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="RexSimplify.html" title="class in org.apache.calcite.rex">RexSimplify</a></span>&nbsp;<span class="element-name">withPredicates</span><wbr><span class="parameters">(<a href="../plan/RelOptPredicateList.html" title="class in org.apache.calcite.plan">RelOptPredicateList</a>&nbsp;predicates)</span></div>
 <div class="block">Returns a RexSimplify the same as this but with a specified
  <code>predicates</code> value.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="withParanoid(boolean)">
 <h3>withParanoid</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="RexSimplify.html" title="class in org.apache.calcite.rex">RexSimplify</a></span>&nbsp;<span class="element-name">withParanoid</span><wbr><span class="parameters">(boolean&nbsp;paranoid)</span></div>
 <div class="block">Returns a RexSimplify the same as this but which verifies that
  the expression before and after simplification are equivalent.</div>
 <dl class="notes">
 <dt>See Also:</dt>
 <dd>
 <ul class="see-list-long">
 <li><code>verify(org.apache.calcite.rex.RexNode, org.apache.calcite.rex.RexNode, org.apache.calcite.rex.RexUnknownAs)</code></li>
 </ul>
 </dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="simplifyPreservingType(org.apache.calcite.rex.RexNode)">
 <h3>simplifyPreservingType</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span>&nbsp;<span class="element-name">simplifyPreservingType</span><wbr><span class="parameters">(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e)</span></div>
 <div class="block">Simplifies a boolean expression, always preserving its type and its
  nullability.

  <p>This is useful if you are simplifying expressions in a
  <a href="../rel/core/Project.html" title="class in org.apache.calcite.rel.core"><code>Project</code></a>.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="simplifyPreservingType(org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexUnknownAs,boolean)">
 <h3>simplifyPreservingType</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span>&nbsp;<span class="element-name">simplifyPreservingType</span><wbr><span class="parameters">(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e,
  <a href="RexUnknownAs.html" title="enum in org.apache.calcite.rex">RexUnknownAs</a>&nbsp;unknownAs,
  boolean&nbsp;matchNullability)</span></div>
 </section>
 </li>
 <li>
 <section class="detail" id="simplify(org.apache.calcite.rex.RexNode)">
 <h3>simplify</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span>&nbsp;<span class="element-name">simplify</span><wbr><span class="parameters">(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e)</span></div>
 <div class="block">Simplifies a boolean expression.

  <p>In particular:</p>
  <ul>
  <li><code>simplify(x = 1 OR NOT x = 1 OR x IS NULL)</code>
  returns <code>TRUE</code></li>
  <li><code>simplify(x = 1 AND FALSE)</code>
  returns <code>FALSE</code></li>
  </ul>

  <p>Handles UNKNOWN values using the policy specified when you created this
  <code>RexSimplify</code>. Unless you used a deprecated constructor, that policy
  is <a href="RexUnknownAs.html#UNKNOWN"><code>RexUnknownAs.UNKNOWN</code></a>.

  <p>If the expression is a predicate in a WHERE clause, consider instead
  using <a href="#simplifyUnknownAsFalse(org.apache.calcite.rex.RexNode)"><code>simplifyUnknownAsFalse(RexNode)</code></a>.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>e</code> - Expression to simplify</dd>
 </dl>
 </section>
 </li>
 <li>
 <section class="detail" id="simplifyUnknownAsFalse(org.apache.calcite.rex.RexNode)">
 <h3>simplifyUnknownAsFalse</h3>
 <div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type"><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span>&nbsp;<span class="element-name">simplifyUnknownAsFalse</span><wbr><span class="parameters">(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e)</span></div>
 <div class="block">As <a href="#simplify(org.apache.calcite.rex.RexNode)"><code>simplify(RexNode)</code></a>, but for a boolean expression
  for which a result of UNKNOWN will be treated as FALSE.

  <p>Use this form for expressions on a WHERE, ON, HAVING or FILTER(WHERE)
  clause.

  <p>This may allow certain additional simplifications. A result of UNKNOWN
  may yield FALSE, however it may still yield UNKNOWN. (If the simplified
  expression has type BOOLEAN NOT NULL, then of course it can only return
  FALSE.)</div>
 </section>
 </li>
 <li>
 <section class="detail" id="simplifyUnknownAs(org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexUnknownAs)">
 <h3>simplifyUnknownAs</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span>&nbsp;<span class="element-name">simplifyUnknownAs</span><wbr><span class="parameters">(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e,
  <a href="RexUnknownAs.html" title="enum in org.apache.calcite.rex">RexUnknownAs</a>&nbsp;unknownAs)</span></div>
 <div class="block">As <a href="#simplify(org.apache.calcite.rex.RexNode)"><code>simplify(RexNode)</code></a>, but specifying how UNKNOWN values are to be
  treated.

  <p>If UNKNOWN is treated as FALSE, this may allow certain additional
  simplifications. A result of UNKNOWN may yield FALSE, however it may still
  yield UNKNOWN. (If the simplified expression has type BOOLEAN NOT NULL,
  then of course it can only return FALSE.)</div>
 </section>
 </li>
 <li>
 <section class="detail" id="simplifyAnds(java.lang.Iterable)">
 <h3>simplifyAnds</h3>
 <div class="member-signature"><span class="annotations"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Deprecated.html" title="class or interface in java.lang" class="external-link">@Deprecated</a>
 </span><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span>&nbsp;<span class="element-name">simplifyAnds</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Iterable.html" title="class or interface in java.lang" class="external-link">Iterable</a>&lt;? extends <a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;&nbsp;nodes)</span></div>
 <div class="deprecation-block"><span class="deprecated-label">Deprecated.</span></div>
 <div class="block">Simplifies a conjunction of boolean expressions.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="simplifyAnd(org.apache.calcite.rex.RexCall)">
 <h3>simplifyAnd</h3>
 <div class="member-signature"><span class="annotations"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Deprecated.html" title="class or interface in java.lang" class="external-link">@Deprecated</a>
 </span><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span>&nbsp;<span class="element-name">simplifyAnd</span><wbr><span class="parameters">(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;e)</span></div>
 <div class="deprecation-block"><span class="deprecated-label">Deprecated.</span></div>
 </section>
 </li>
 <li>
 <section class="detail" id="simplifyOr(org.apache.calcite.rex.RexCall)">
 <h3>simplifyOr</h3>
 <div class="member-signature"><span class="annotations"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Deprecated.html" title="class or interface in java.lang" class="external-link">@Deprecated</a>
 </span><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span>&nbsp;<span class="element-name">simplifyOr</span><wbr><span class="parameters">(<a href="RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</span></div>
 <div class="deprecation-block"><span class="deprecated-label">Deprecated.</span></div>
 <div class="block">Simplifies OR(x, x) into x, and similar.
  The simplified expression returns UNKNOWN values as is (not as FALSE).</div>
 </section>
 </li>
 <li>
 <section class="detail" id="simplifyOrs(java.util.List)">
 <h3>simplifyOrs</h3>
 <div class="member-signature"><span class="annotations"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Deprecated.html" title="class or interface in java.lang" class="external-link">@Deprecated</a>
 </span><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span>&nbsp;<span class="element-name">simplifyOrs</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a>&lt;<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;&nbsp;terms)</span></div>
 <div class="deprecation-block"><span class="deprecated-label">Deprecated.</span></div>
 <div class="block">Simplifies a list of terms and combines them into an OR.
  Modifies the list in place.
  The simplified expression returns UNKNOWN values as is (not as FALSE).</div>
 </section>
 </li>
 <li>
 <section class="detail" id="removeNullabilityCast(org.apache.calcite.rex.RexNode)">
 <h3>removeNullabilityCast</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span>&nbsp;<span class="element-name">removeNullabilityCast</span><wbr><span class="parameters">(<a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;e)</span></div>
 <div class="block">Removes any casts that change nullability but not type.

  <p>For example, <code>CAST(1 = 0 AS BOOLEAN)</code> becomes <code>1 = 0</code>.</div>
 </section>
 </li>
 <li>
 <section class="detail" id="simplifyFilterPredicates(java.lang.Iterable)">
 <h3>simplifyFilterPredicates</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">@Nullable <a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span>&nbsp;<span class="element-name">simplifyFilterPredicates</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Iterable.html" title="class or interface in java.lang" class="external-link">Iterable</a>&lt;? extends <a href="RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;&nbsp;predicates)</span></div>
 <div class="block">Combines predicates AND, optimizes, and returns null if the result is
  always false.

  <p>The expression is simplified on the assumption that an UNKNOWN value
  is always treated as FALSE. Therefore the simplified expression may
  sometimes evaluate to FALSE where the original expression would evaluate to
  UNKNOWN.</div>
 <dl class="notes">
 <dt>Parameters:</dt>
 <dd><code>predicates</code> - Filter condition predicates</dd>
 <dt>Returns:</dt>
 <dd>simplified conjunction of predicates for the filter, null if always false</dd>
 </dl>
 </section>
 </li>
 </ul>
 </section>
 </li>
 </ul>
 </section>
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