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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.test</a></div>
<h2 title="Class RexProgramTest" class="title">Class RexProgramTest</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
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<li><a href="RexProgramBuilderBase.html" title="class in org.apache.calcite.test">org.apache.calcite.test.RexProgramBuilderBase</a></li>
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<li>org.apache.calcite.test.RexProgramTest</li>
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<pre>public class <span class="typeNameLabel">RexProgramTest</span>
extends <a href="RexProgramBuilderBase.html" title="class in org.apache.calcite.test">RexProgramBuilderBase</a></pre>
<div class="block">Unit tests for <code>RexProgram</code> and
<code>RexProgramBuilder</code>.</div>
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<h3>Fields inherited from class&nbsp;org.apache.calcite.test.<a href="RexProgramBuilderBase.html" title="class in org.apache.calcite.test">RexProgramBuilderBase</a></h3>
<code><a href="RexProgramBuilderBase.html#executor">executor</a>, <a href="RexProgramBuilderBase.html#falseLiteral">falseLiteral</a>, <a href="RexProgramBuilderBase.html#MAX_FIELDS">MAX_FIELDS</a>, <a href="RexProgramBuilderBase.html#nullBool">nullBool</a>, <a href="RexProgramBuilderBase.html#nullInt">nullInt</a>, <a href="RexProgramBuilderBase.html#nullVarchar">nullVarchar</a>, <a href="RexProgramBuilderBase.html#rexBuilder">rexBuilder</a>, <a href="RexProgramBuilderBase.html#simplify">simplify</a>, <a href="RexProgramBuilderBase.html#trueLiteral">trueLiteral</a>, <a href="RexProgramBuilderBase.html#typeFactory">typeFactory</a></code></li>
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<th class="colFirst" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">RexProgramTest</a></span>()</code></th>
<td class="colLast">
<div class="block">Creates a RexProgramTest.</div>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#assertNode(java.lang.String,java.lang.String,org.apache.calcite.rex.RexNode)">assertNode</a></span>&#8203;(java.lang.String&nbsp;message,
java.lang.String&nbsp;expected,
org.apache.calcite.rex.RexNode&nbsp;node)</code></th>
<td class="colLast">
<div class="block">Asserts that given node has expected string representation with account of node type</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#assertTypeAndToString(org.apache.calcite.rex.RexNode,java.lang.String,java.lang.String)">assertTypeAndToString</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;rexNode,
java.lang.String&nbsp;representation,
java.lang.String&nbsp;type)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkCnf(org.apache.calcite.rex.RexNode,java.lang.String)">checkCnf</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
java.lang.String&nbsp;expected)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkExponentialCnf(int)">checkExponentialCnf</a></span>&#8203;(int&nbsp;n)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkIs(org.apache.calcite.rex.RexNode,boolean)">checkIs</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;e,
boolean&nbsp;expected)</code></th>
<td class="colLast">
<div class="block">Checks that <code>RexNode.isAlwaysTrue()</code>,
<code>RexNode.isAlwaysTrue()</code> and <code>RexSimplify</code> agree that
an expression reduces to true or false.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkPullFactors(org.apache.calcite.rex.RexNode,java.lang.String)">checkPullFactors</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
java.lang.String&nbsp;expected)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkPullFactorsUnchanged(org.apache.calcite.rex.RexNode)">checkPullFactorsUnchanged</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;node)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkSimplify(org.apache.calcite.rex.RexNode,java.lang.String)">checkSimplify</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
java.lang.String&nbsp;expected)</code></th>
<td class="colLast">
<div class="block">Simplifies an expression and checks that the result is as expected.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkSimplify2(org.apache.calcite.rex.RexNode,java.lang.String,java.lang.String)">checkSimplify2</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
java.lang.String&nbsp;expected,
java.lang.String&nbsp;expectedFalse)</code></th>
<td class="colLast">
<div class="block">Simplifies an expression and checks the result if unknowns remain
unknown, or if unknown becomes false.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkSimplify3(org.apache.calcite.rex.RexNode,java.lang.String,java.lang.String,java.lang.String)">checkSimplify3</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
java.lang.String&nbsp;expected,
java.lang.String&nbsp;expectedFalse,
java.lang.String&nbsp;expectedTrue)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkSimplify3_(org.apache.calcite.rex.RexNode,java.lang.String,java.lang.String,java.lang.String)">checkSimplify3_</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
java.lang.String&nbsp;expected,
java.lang.String&nbsp;expectedFalse,
java.lang.String&nbsp;expectedTrue)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkSimplifyDynamicParam()">checkSimplifyDynamicParam</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkSimplifyFilter(org.apache.calcite.rex.RexNode,java.lang.String)">checkSimplifyFilter</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
java.lang.String&nbsp;expected)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkSimplifyFilter(org.apache.calcite.rex.RexNode,org.apache.calcite.plan.RelOptPredicateList,java.lang.String)">checkSimplifyFilter</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
org.apache.calcite.plan.RelOptPredicateList&nbsp;predicates,
java.lang.String&nbsp;expected)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkSimplifyUnchanged(org.apache.calcite.rex.RexNode)">checkSimplifyUnchanged</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;node)</code></th>
<td class="colLast">
<div class="block">Simplifies an expression and checks that the result is unchanged.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkThresholdCnf(org.apache.calcite.rex.RexNode,int,java.lang.String)">checkThresholdCnf</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
int&nbsp;threshold,
java.lang.String&nbsp;expected)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>private org.apache.calcite.rex.RexProgramBuilder</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createProg(int)">createProg</a></span>&#8203;(int&nbsp;variant)</code></th>
<td class="colLast">
<div class="block">Creates a program, depending on variant:
<code>select (x + y) + (x + 1) as a, (x + x) as b from t(x, y)</code>
<code>select (x + y) + (x + 1) as a, (x + (x + 1)) as b
from t(x, y)</code>
<code>select (x + y) + (x + 1) as a, (x + x) as b from t(x, y)
where ((x + y) &gt; 1) and ((x + y) &gt; 1)</code>
<code>select (x + y) + (x + 1) as a, (x + x) as b from t(x, y)
where not case
when x + 1 &gt; 5 then true
when y is null then null
else false
end</code>
</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>private java.lang.Comparable</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#eval(org.apache.calcite.rex.RexNode)">eval</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;e)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#fieldAccessEqualsHashCode()">fieldAccessEqualsHashCode</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>private static java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getString(com.google.common.collect.ImmutableMap)">getString</a></span>&#8203;(com.google.common.collect.ImmutableMap&lt;org.apache.calcite.rex.RexNode,&#8203;org.apache.calcite.rex.RexNode&gt;&nbsp;map)</code></th>
<td class="colLast">
<div class="block">Converts a map to a string, sorting on the string representation of its
keys.</div>
</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>private static int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#nodeCount(org.apache.calcite.rex.RexNode)">nodeCount</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;node)</code></th>
<td class="colLast">
<div class="block">Returns the number of nodes (including leaves) in a Rex tree.</div>
</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#notDistinct()">notDistinct</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#removeRedundantCast()">removeRedundantCast</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setUp()">setUp</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code>private org.apache.calcite.rex.RexNode</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#simplify(org.apache.calcite.rex.RexNode)">simplify</a></span>&#8203;(org.apache.calcite.rex.RexNode&nbsp;e)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i25" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#simplifyNull()">simplifyNull</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i26" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#simplifyStrong()">simplifyStrong</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i27" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testBooleanComparisions()">testBooleanComparisions</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i28" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testBuildProgram()">testBuildProgram</a></span>()</code></th>
<td class="colLast">
<div class="block">Tests construction of a RexProgram.</div>
</td>
</tr>
<tr id="i29" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testCastLiteral()">testCastLiteral</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i30" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testCnf()">testCnf</a></span>()</code></th>
<td class="colLast">
<div class="block">Unit test for <code>RexUtil.toCnf(org.apache.calcite.rex.RexBuilder, org.apache.calcite.rex.RexNode)</code>.</div>
</td>
</tr>
<tr id="i31" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testCnf2()">testCnf2</a></span>()</code></th>
<td class="colLast">
<div class="block">Unit test for
<a href="https://issues.apache.org/jira/browse/CALCITE-394">[CALCITE-394]
Add RexUtil.toCnf, to convert expressions to conjunctive normal form
(CNF)</a>.</div>
</td>
</tr>
<tr id="i32" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testCnfExponential()">testCnfExponential</a></span>()</code></th>
<td class="colLast">
<div class="block">Tests formulas of various sizes whose size is exponential when converted
to CNF.</div>
</td>
</tr>
<tr id="i33" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testCompareTimestampWithTimeZone()">testCompareTimestampWithTimeZone</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i34" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testConstantMap()">testConstantMap</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i35" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testDuplicateAnd()">testDuplicateAnd</a></span>()</code></th>
<td class="colLast">
<div class="block">Checks translation of AND(x, x).</div>
</td>
</tr>
<tr id="i36" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testElimDups()">testElimDups</a></span>()</code></th>
<td class="colLast">
<div class="block">Tests construction and normalization of a RexProgram.</div>
</td>
</tr>
<tr id="i37" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testInDigest()">testInDigest</a></span>()</code></th>
<td class="colLast">
<div class="block">Unit test for
<a href="https://issues.apache.org/jira/browse/CALCITE-2842">[CALCITE-2842]
Computing digest of IN expressions leads to Exceptions</a>.</div>
</td>
</tr>
<tr id="i38" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testInterpreter()">testInterpreter</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i39" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testIsAlwaysTrueAndFalseNotXisNullisNotNullisFalse()">testIsAlwaysTrueAndFalseNotXisNullisNotNullisFalse</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i40" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testIsAlwaysTrueAndFalseNotXisNullisNotNullisNotTrue()">testIsAlwaysTrueAndFalseNotXisNullisNotNullisNotTrue</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i41" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testIsAlwaysTrueAndFalseNotXisNullisNotNullisTrue()">testIsAlwaysTrueAndFalseNotXisNullisNotNullisTrue</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i42" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testIsAlwaysTrueAndFalseXisNotNullisNotNull()">testIsAlwaysTrueAndFalseXisNotNullisNotNull</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i43" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testIsAlwaysTrueAndFalseXisNotNullisNull()">testIsAlwaysTrueAndFalseXisNotNullisNull</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i44" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testIsAlwaysTrueAndFalseXisNullisNotNull()">testIsAlwaysTrueAndFalseXisNullisNotNull</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i45" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testIsAlwaysTrueAndFalseXisNullisNotNullisFalse()">testIsAlwaysTrueAndFalseXisNullisNotNullisFalse</a></span>()</code></th>
<td class="colLast">
<div class="block">Unit tests for
<a href="https://issues.apache.org/jira/browse/CALCITE-2438">[CALCITE-2438]
RexCall#isAlwaysTrue returns incorrect result</a>.</div>
</td>
</tr>
<tr id="i46" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testIsAlwaysTrueAndFalseXisNullisNotNullisNotFalse()">testIsAlwaysTrueAndFalseXisNullisNotNullisNotFalse</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i47" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testIsAlwaysTrueAndFalseXisNullisNotNullisNotTrue()">testIsAlwaysTrueAndFalseXisNullisNotNullisNotTrue</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i48" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testIsAlwaysTrueAndFalseXisNullisNotNullisTrue()">testIsAlwaysTrueAndFalseXisNullisNotNullisTrue</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i49" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testIsAlwaysTrueAndFalseXisNullisNull()">testIsAlwaysTrueAndFalseXisNullisNull</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i50" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testIsDeterministic()">testIsDeterministic</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i51" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testIsNullRecursion()">testIsNullRecursion</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i52" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testLosslessCast()">testLosslessCast</a></span>()</code></th>
<td class="colLast">
<div class="block">Unit test for <code>RexUtil.isLosslessCast(RexNode)</code>.</div>
</td>
</tr>
<tr id="i53" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testNestedAndSimplification()">testNestedAndSimplification</a></span>()</code></th>
<td class="colLast">
<div class="block">Unit test for
<a href="https://issues.apache.org/jira/browse/CALCITE-2840">[CALCITE-2840]
Simplification should use more specific UnknownAs modes during simplification</a>.</div>
</td>
</tr>
<tr id="i54" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testNoCommonReturnTypeFails()">testNoCommonReturnTypeFails</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i55" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testNormalize()">testNormalize</a></span>()</code></th>
<td class="colLast">
<div class="block">Tests construction and normalization of a RexProgram.</div>
</td>
</tr>
<tr id="i56" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testNotRecursion()">testNotRecursion</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i57" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testPullFactors()">testPullFactors</a></span>()</code></th>
<td class="colLast">
<div class="block">Unit test for <code>RexUtil.pullFactors(org.apache.calcite.rex.RexBuilder, org.apache.calcite.rex.RexNode)</code>.</div>
</td>
</tr>
<tr id="i58" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testPushNotIntoCase()">testPushNotIntoCase</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i59" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testRedundantIsFalse()">testRedundantIsFalse</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i60" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testRedundantIsNotFalse()">testRedundantIsNotFalse</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i61" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testRedundantIsNotTrue()">testRedundantIsNotTrue</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i62" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testRedundantIsTrue()">testRedundantIsTrue</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i63" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testRemovalOfNullabilityWideningCast()">testRemovalOfNullabilityWideningCast</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i64" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSelfComparisions()">testSelfComparisions</a></span>()</code></th>
<td class="colLast">
<div class="block">Unit test for
<a href="https://issues.apache.org/jira/browse/CALCITE-2421">[CALCITE-2421]
to-be-filled </a>.</div>
</td>
</tr>
<tr id="i65" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimpleDynamicVars()">testSimpleDynamicVars</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i66" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplify()">testSimplify</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i67" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyAnd()">testSimplifyAnd</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i68" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyAnd3()">testSimplifyAnd3</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i69" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyAndNot()">testSimplifyAndNot</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i70" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyAndPush()">testSimplifyAndPush</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i71" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCaseAndNotSimplicationIsInAction()">testSimplifyCaseAndNotSimplicationIsInAction</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i72" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCaseBranchesCollapse()">testSimplifyCaseBranchesCollapse</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i73" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCaseBranchesCollapse2()">testSimplifyCaseBranchesCollapse2</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i74" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCaseBranchRemovalStrengthensType()">testSimplifyCaseBranchRemovalStrengthensType</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i75" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCaseCasting()">testSimplifyCaseCasting</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i76" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCaseCompaction()">testSimplifyCaseCompaction</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i77" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCaseCompaction2()">testSimplifyCaseCompaction2</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i78" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCaseCompactionDiv()">testSimplifyCaseCompactionDiv</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i79" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCaseDiv1()">testSimplifyCaseDiv1</a></span>()</code></th>
<td class="colLast">
<div class="block">Tests a CASE value branch that contains division.</div>
</td>
</tr>
<tr id="i80" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCaseDiv2()">testSimplifyCaseDiv2</a></span>()</code></th>
<td class="colLast">
<div class="block">Tests a CASE condition that contains division,</div>
</td>
</tr>
<tr id="i81" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCaseFirstBranchIsSafe()">testSimplifyCaseFirstBranchIsSafe</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i82" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCaseNotNullableBoolean()">testSimplifyCaseNotNullableBoolean</a></span>()</code></th>
<td class="colLast">
<div class="block">Unit test for
<a href="https://issues.apache.org/jira/browse/CALCITE-1289">[CALCITE-1289]
RexUtil.simplifyCase() should account for nullability</a>.</div>
</td>
</tr>
<tr id="i83" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCaseNullableBoolean()">testSimplifyCaseNullableBoolean</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i84" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCaseNullableVarChar()">testSimplifyCaseNullableVarChar</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i85" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCastIsNull()">testSimplifyCastIsNull</a></span>()</code></th>
<td class="colLast">
<div class="block">Unit test for
<a href="https://issues.apache.org/jira/browse/CALCITE-2929">[CALCITE-2929]
Simplification of IS NULL checks are incorrectly assuming that CAST-s are possible</a>.</div>
</td>
</tr>
<tr id="i86" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCastIsNull2()">testSimplifyCastIsNull2</a></span>()</code></th>
<td class="colLast">
<div class="block">Unit test for
<a href="https://issues.apache.org/jira/browse/CALCITE-2929">[CALCITE-2929]
Simplification of IS NULL checks are incorrectly assuming that CAST-s are possible</a>.</div>
</td>
</tr>
<tr id="i87" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCastLiteral()">testSimplifyCastLiteral</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i88" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCastLiteral2()">testSimplifyCastLiteral2</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i89" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCastLiteral3()">testSimplifyCastLiteral3</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i90" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCoalesce()">testSimplifyCoalesce</a></span>()</code></th>
<td class="colLast">
<div class="block">Unit test for
<a href="https://issues.apache.org/jira/browse/CALCITE-2505">[CALCITE-2505]
RexSimplify wrongly simplifies "COALESCE(+(NULL), x)" to "NULL"</a>.</div>
</td>
</tr>
<tr id="i91" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCondition()">testSimplifyCondition</a></span>()</code></th>
<td class="colLast">
<div class="block">Tests how the condition is simplified.</div>
</td>
</tr>
<tr id="i92" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyCondition2()">testSimplifyCondition2</a></span>()</code></th>
<td class="colLast">
<div class="block">Tests how the condition is simplified.</div>
</td>
</tr>
<tr id="i93" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyDynamicParam()">testSimplifyDynamicParam</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i94" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyFalse()">testSimplifyFalse</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i95" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyFilter()">testSimplifyFilter</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i96" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyIsNotNull()">testSimplifyIsNotNull</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i97" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyLiterals()">testSimplifyLiterals</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i98" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyNot()">testSimplifyNot</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i99" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyNotAnd()">testSimplifyNotAnd</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i100" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyOrNot()">testSimplifyOrNot</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i101" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyOrTerms()">testSimplifyOrTerms</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i102" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyRecurseIntoArithmetics()">testSimplifyRecurseIntoArithmetics</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i103" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSimplifyUnknown()">testSimplifyUnknown</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i104" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testStrong()">testStrong</a></span>()</code></th>
<td class="colLast">
<div class="block">Unit test for <code>Strong</code>.</div>
</td>
</tr>
<tr id="i105" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testThresholdCnf()">testThresholdCnf</a></span>()</code></th>
<td class="colLast">
<div class="block">Unit test for
<a href="https://issues.apache.org/jira/browse/CALCITE-1290">[CALCITE-1290]
When converting to CNF, fail if the expression exceeds a threshold</a>.</div>
</td>
</tr>
<tr id="i106" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#xAndNotX()">xAndNotX</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
</table>
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<h3>Methods inherited from class&nbsp;org.apache.calcite.test.<a href="RexProgramBuilderBase.html" title="class in org.apache.calcite.test">RexProgramBuilderBase</a></h3>
<code><a href="RexProgramBuilderBase.html#abstractCast(org.apache.calcite.rex.RexNode,org.apache.calcite.rel.type.RelDataType)">abstractCast</a>, <a href="RexProgramBuilderBase.html#add(org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexNode)">add</a>, <a href="RexProgramBuilderBase.html#and(java.lang.Iterable)">and</a>, <a href="RexProgramBuilderBase.html#and(org.apache.calcite.rex.RexNode...)">and</a>, <a href="RexProgramBuilderBase.html#case_(java.lang.Iterable)">case_</a>, <a href="RexProgramBuilderBase.html#case_(org.apache.calcite.rex.RexNode...)">case_</a>, <a href="RexProgramBuilderBase.html#cast(org.apache.calcite.rex.RexNode,org.apache.calcite.rel.type.RelDataType)">cast</a>, <a href="RexProgramBuilderBase.html#coalesce(org.apache.calcite.rex.RexNode...)">coalesce</a>, <a href="RexProgramBuilderBase.html#div(org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexNode)">div</a>, <a href="RexProgramBuilderBase.html#divInt(org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexNode)">divInt</a>, <a href="RexProgramBuilderBase.html#eq(org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexNode)">eq</a>, <a href="RexProgramBuilderBase.html#ge(org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexNode)">ge</a>, <a href="RexProgramBuilderBase.html#gt(org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexNode)">gt</a>, <a href="RexProgramBuilderBase.html#in(org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexNode...)">in</a>, <a href="RexProgramBuilderBase.html#input(org.apache.calcite.rel.type.RelDataType,int)">input</a>, <a href="RexProgramBuilderBase.html#isDistinctFrom(org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexNode)">isDistinctFrom</a>, <a href="RexProgramBuilderBase.html#isFalse(org.apache.calcite.rex.RexNode)">isFalse</a>, <a 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href="RexProgramBuilderBase.html#unaryMinus(org.apache.calcite.rex.RexNode)">unaryMinus</a>, <a href="RexProgramBuilderBase.html#unaryPlus(org.apache.calcite.rex.RexNode)">unaryPlus</a>, <a href="RexProgramBuilderBase.html#vBool()">vBool</a>, <a href="RexProgramBuilderBase.html#vBool(int)">vBool</a>, <a href="RexProgramBuilderBase.html#vBoolNotNull()">vBoolNotNull</a>, <a href="RexProgramBuilderBase.html#vBoolNotNull(int)">vBoolNotNull</a>, <a href="RexProgramBuilderBase.html#vInt()">vInt</a>, <a href="RexProgramBuilderBase.html#vInt(int)">vInt</a>, <a href="RexProgramBuilderBase.html#vIntNotNull()">vIntNotNull</a>, <a href="RexProgramBuilderBase.html#vIntNotNull(int)">vIntNotNull</a>, <a href="RexProgramBuilderBase.html#vVarchar()">vVarchar</a>, <a href="RexProgramBuilderBase.html#vVarchar(int)">vVarchar</a>, <a href="RexProgramBuilderBase.html#vVarcharNotNull()">vVarcharNotNull</a>, <a href="RexProgramBuilderBase.html#vVarcharNotNull(int)">vVarcharNotNull</a></code></li>
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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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<pre>public&nbsp;RexProgramTest()</pre>
<div class="block">Creates a RexProgramTest.</div>
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<pre class="methodSignature">public&nbsp;void&nbsp;setUp()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="RexProgramBuilderBase.html#setUp()">setUp</a></code>&nbsp;in class&nbsp;<code><a href="RexProgramBuilderBase.html" title="class in org.apache.calcite.test">RexProgramBuilderBase</a></code></dd>
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<h4>checkCnf</h4>
<pre class="methodSignature">private&nbsp;void&nbsp;checkCnf&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
java.lang.String&nbsp;expected)</pre>
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<pre class="methodSignature">private&nbsp;void&nbsp;checkThresholdCnf&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
int&nbsp;threshold,
java.lang.String&nbsp;expected)</pre>
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<pre class="methodSignature">private&nbsp;void&nbsp;checkPullFactorsUnchanged&#8203;(org.apache.calcite.rex.RexNode&nbsp;node)</pre>
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<pre class="methodSignature">private&nbsp;void&nbsp;checkPullFactors&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
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<pre class="methodSignature">private&nbsp;void&nbsp;assertNode&#8203;(java.lang.String&nbsp;message,
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org.apache.calcite.rex.RexNode&nbsp;node)</pre>
<div class="block">Asserts that given node has expected string representation with account of node type</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>message</code> - extra message that clarifies where the node came from</dd>
<dd><code>expected</code> - expected string representation of the node</dd>
<dd><code>node</code> - node to check</dd>
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<pre class="methodSignature">private&nbsp;void&nbsp;checkSimplify&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
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<div class="block">Simplifies an expression and checks that the result is as expected.</div>
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<pre class="methodSignature">private&nbsp;void&nbsp;checkSimplifyUnchanged&#8203;(org.apache.calcite.rex.RexNode&nbsp;node)</pre>
<div class="block">Simplifies an expression and checks that the result is unchanged.</div>
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<pre class="methodSignature">private&nbsp;void&nbsp;checkSimplify2&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
java.lang.String&nbsp;expected,
java.lang.String&nbsp;expectedFalse)</pre>
<div class="block">Simplifies an expression and checks the result if unknowns remain
unknown, or if unknown becomes false. If the result is the same, use
<a href="#checkSimplify(org.apache.calcite.rex.RexNode,java.lang.String)"><code>checkSimplify(RexNode, String)</code></a>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>node</code> - Expression to simplify</dd>
<dd><code>expected</code> - Expected simplification</dd>
<dd><code>expectedFalse</code> - Expected simplification, if unknown is to be treated
as false</dd>
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<pre class="methodSignature">private&nbsp;void&nbsp;checkSimplify3&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
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java.lang.String&nbsp;expectedFalse,
java.lang.String&nbsp;expectedTrue)</pre>
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<pre class="methodSignature">private&nbsp;void&nbsp;checkSimplify3_&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
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java.lang.String&nbsp;expectedFalse,
java.lang.String&nbsp;expectedTrue)</pre>
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<pre class="methodSignature">private&nbsp;void&nbsp;checkSimplifyFilter&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
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<pre class="methodSignature">private&nbsp;void&nbsp;checkSimplifyFilter&#8203;(org.apache.calcite.rex.RexNode&nbsp;node,
org.apache.calcite.plan.RelOptPredicateList&nbsp;predicates,
java.lang.String&nbsp;expected)</pre>
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<pre class="methodSignature">private static&nbsp;int&nbsp;nodeCount&#8203;(org.apache.calcite.rex.RexNode&nbsp;node)</pre>
<div class="block">Returns the number of nodes (including leaves) in a Rex tree.</div>
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<pre class="methodSignature">public&nbsp;void&nbsp;testBuildProgram()</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;testNormalize()</pre>
<div class="block">Tests construction and normalization of a RexProgram.</div>
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<pre class="methodSignature">public&nbsp;void&nbsp;testElimDups()</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;testSimplifyCondition()</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;testSimplifyCondition2()</pre>
<div class="block">Tests how the condition is simplified.</div>
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<pre class="methodSignature">public&nbsp;void&nbsp;testDuplicateAnd()</pre>
<div class="block">Checks translation of AND(x, x).</div>
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<pre class="methodSignature">private&nbsp;org.apache.calcite.rex.RexProgramBuilder&nbsp;createProg&#8203;(int&nbsp;variant)</pre>
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<ol>
<li><code>select (x + y) + (x + 1) as a, (x + x) as b from t(x, y)</code>
<li><code>select (x + y) + (x + 1) as a, (x + (x + 1)) as b
from t(x, y)</code>
<li><code>select (x + y) + (x + 1) as a, (x + x) as b from t(x, y)
where ((x + y) &gt; 1) and ((x + y) &gt; 1)</code>
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where not case
when x + 1 &gt; 5 then true
when y is null then null
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end</code>
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<pre class="methodSignature">public&nbsp;void&nbsp;testStrong()</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;xAndNotX()</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;testLosslessCast()</pre>
<div class="block">Unit test for <code>RexUtil.isLosslessCast(RexNode)</code>.</div>
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<pre class="methodSignature">public&nbsp;void&nbsp;testNoCommonReturnTypeFails()</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;testCnf()</pre>
<div class="block">Unit test for <code>RexUtil.toCnf(org.apache.calcite.rex.RexBuilder, org.apache.calcite.rex.RexNode)</code>.</div>
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<pre class="methodSignature">public&nbsp;void&nbsp;testCnf2()</pre>
<div class="block">Unit test for
<a href="https://issues.apache.org/jira/browse/CALCITE-394">[CALCITE-394]
Add RexUtil.toCnf, to convert expressions to conjunctive normal form
(CNF)</a>.</div>
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<pre class="methodSignature">public&nbsp;void&nbsp;testThresholdCnf()</pre>
<div class="block">Unit test for
<a href="https://issues.apache.org/jira/browse/CALCITE-1290">[CALCITE-1290]
When converting to CNF, fail if the expression exceeds a threshold</a>.</div>
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<pre class="methodSignature">public&nbsp;void&nbsp;testCnfExponential()</pre>
<div class="block">Tests formulas of various sizes whose size is exponential when converted
to CNF.</div>
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<pre class="methodSignature">private&nbsp;void&nbsp;checkExponentialCnf&#8203;(int&nbsp;n)</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;testPullFactors()</pre>
<div class="block">Unit test for <code>RexUtil.pullFactors(org.apache.calcite.rex.RexBuilder, org.apache.calcite.rex.RexNode)</code>.</div>
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<pre class="methodSignature">public&nbsp;void&nbsp;testSimplifyAndPush()</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;testSimplifyOrTerms()</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;testSimplifyNotAnd()</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;testSimplifyUnknown()</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;testNestedAndSimplification()</pre>
<div class="block">Unit test for
<a href="https://issues.apache.org/jira/browse/CALCITE-2840">[CALCITE-2840]
Simplification should use more specific UnknownAs modes during simplification</a>.</div>
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RexUtil.simplifyCase() should account for nullability</a>.</div>
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<a href="https://issues.apache.org/jira/browse/CALCITE-2929">[CALCITE-2929]
Simplification of IS NULL checks are incorrectly assuming that CAST-s are possible</a>.</div>
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<a href="https://issues.apache.org/jira/browse/CALCITE-2929">[CALCITE-2929]
Simplification of IS NULL checks are incorrectly assuming that CAST-s are possible</a>.</div>
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<a href="https://issues.apache.org/jira/browse/CALCITE-2505">[CALCITE-2505]
RexSimplify wrongly simplifies "COALESCE(+(NULL), x)" to "NULL"</a>.</div>
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<a href="https://issues.apache.org/jira/browse/CALCITE-2438">[CALCITE-2438]
RexCall#isAlwaysTrue returns incorrect result</a>.</div>
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<div class="block">Checks that <code>RexNode.isAlwaysTrue()</code>,
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<div class="block">Unit test for
<a href="https://issues.apache.org/jira/browse/CALCITE-2842">[CALCITE-2842]
Computing digest of IN expressions leads to Exceptions</a>.</div>
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