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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 TypeCoercionTest" class="title">Class TypeCoercionTest</h2>
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 <pre>public class <span class="typeNameLabel">TypeCoercionTest</span>
 extends <a href="SqlValidatorTestCase.html" title="class in org.apache.calcite.test">SqlValidatorTestCase</a></pre>
 <div class="block">Test cases for implicit type coercion. see <code>TypeCoercion</code> doc
  or <a href="https://docs.google.com/spreadsheets/d/1GhleX5h5W8-kJKh7NMJ4vtoE78pwfaZRJl88ULX_MgU/edit?usp=sharing">CalciteImplicitCasts</a>
  for conversion details.</div>
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 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>class&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="TypeCoercionTest.TCatalogReader.html" title="class in org.apache.calcite.test">TypeCoercionTest.TCatalogReader</a></span></code></th>
 <td class="colLast">
 <div class="block">A catalog reader with table t1 and t2 whose schema contains all the test data types.</div>
 </td>
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 <h3>Nested classes/interfaces inherited from class&nbsp;org.apache.calcite.test.<a href="SqlValidatorTestCase.html" title="class in org.apache.calcite.test">SqlValidatorTestCase</a></h3>
 <code><a href="SqlValidatorTestCase.Sql.html" title="class in org.apache.calcite.test">SqlValidatorTestCase.Sql</a>, <a href="SqlValidatorTestCase.Tester.html" title="interface in org.apache.calcite.test">SqlValidatorTestCase.Tester</a></code></li>
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 <tr class="altColor">
 <td class="colFirst"><code>private com.google.common.collect.ImmutableList&lt;org.apache.calcite.rel.type.RelDataType&gt;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#allTypes">allTypes</a></span></code></th>
 <td class="colLast">&nbsp;</td>
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 <td class="colFirst"><code>private com.google.common.collect.ImmutableList&lt;org.apache.calcite.rel.type.RelDataType&gt;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#atomicTypes">atomicTypes</a></span></code></th>
 <td class="colLast">&nbsp;</td>
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 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#bigintType">bigintType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
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 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#binaryType">binaryType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
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 <td class="colFirst"><code>private com.google.common.collect.ImmutableList&lt;org.apache.calcite.rel.type.RelDataType&gt;</code></td>
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 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#booleanType">booleanType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
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 <tr class="altColor">
 <td class="colFirst"><code>private com.google.common.collect.ImmutableList&lt;org.apache.calcite.rel.type.RelDataType&gt;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#booleanTypes">booleanTypes</a></span></code></th>
 <td class="colLast">&nbsp;</td>
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 <tr class="rowColor">
 <td class="colFirst"><code>private <a href="../sql/test/SqlTestFactory.MockCatalogReaderFactory.html" title="interface in org.apache.calcite.sql.test">SqlTestFactory.MockCatalogReaderFactory</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#catalogReaderFactory">catalogReaderFactory</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#charType">charType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>private com.google.common.collect.ImmutableList&lt;org.apache.calcite.rel.type.RelDataType&gt;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#charTypes">charTypes</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataTypeFactory</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#dataTypeFactory">dataTypeFactory</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#dateType">dateType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#decimalType">decimalType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#doubleType">doubleType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#floatType">floatType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
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 <tr class="rowColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#intType">intType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#nullType">nullType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>private com.google.common.collect.ImmutableList&lt;org.apache.calcite.rel.type.RelDataType&gt;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#numericTypes">numericTypes</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#smallintType">smallintType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#timestampType">timestampType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#timeType">timeType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#tinyintType">tinyintType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private org.apache.calcite.sql.validate.implicit.TypeCoercion</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#typeCoercion">typeCoercion</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#varbinaryType">varbinaryType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#varchar20Type">varchar20Type</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#varcharType">varcharType</a></span></code></th>
 <td class="colLast">&nbsp;</td>
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 <h3>Fields inherited from class&nbsp;org.apache.calcite.test.<a href="SqlValidatorTestCase.html" title="class in org.apache.calcite.test">SqlValidatorTestCase</a></h3>
 <code><a href="SqlValidatorTestCase.html#EXTENDED_CATALOG_TESTER">EXTENDED_CATALOG_TESTER</a>, <a href="SqlValidatorTestCase.html#EXTENDED_CATALOG_TESTER_2003">EXTENDED_CATALOG_TESTER_2003</a>, <a href="SqlValidatorTestCase.html#EXTENDED_CATALOG_TESTER_LENIENT">EXTENDED_CATALOG_TESTER_LENIENT</a>, <a href="SqlValidatorTestCase.html#tester">tester</a>, <a href="SqlValidatorTestCase.html#TESTER_CONFIGURATION_RULE">TESTER_CONFIGURATION_RULE</a></code></li>
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 <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">TypeCoercionTest</a></span>()</code></th>
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 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#arrayType(org.apache.calcite.rel.type.RelDataType)">arrayType</a></span>&#8203;(org.apache.calcite.rel.type.RelDataType&nbsp;type)</code></th>
 <td class="colLast">&nbsp;</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="#checkCommonType(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType,boolean)">checkCommonType</a></span>&#8203;(org.apache.calcite.rel.type.RelDataType&nbsp;type1,
                org.apache.calcite.rel.type.RelDataType&nbsp;type2,
                org.apache.calcite.rel.type.RelDataType&nbsp;expected,
                boolean&nbsp;isSymmetric)</code></th>
 <td class="colLast">
 <div class="block">Decision method for finding a common type.</div>
 </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="#checkShouldCast(org.apache.calcite.rel.type.RelDataType,java.util.List)">checkShouldCast</a></span>&#8203;(org.apache.calcite.rel.type.RelDataType&nbsp;checked,
                java.util.List&lt;org.apache.calcite.rel.type.RelDataType&gt;&nbsp;types)</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="#checkWiderType(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType,boolean,boolean)">checkWiderType</a></span>&#8203;(org.apache.calcite.rel.type.RelDataType&nbsp;type1,
               org.apache.calcite.rel.type.RelDataType&nbsp;type2,
               org.apache.calcite.rel.type.RelDataType&nbsp;expected,
               boolean&nbsp;stringPromotion,
               boolean&nbsp;isSymmetric)</code></th>
 <td class="colLast">
 <div class="block">Decision method for finding a wider type.</div>
 </td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code>private static com.google.common.collect.ImmutableList&lt;org.apache.calcite.rel.type.RelDataType&gt;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#combine(java.util.List,java.util.List)">combine</a></span>&#8203;(java.util.List&lt;org.apache.calcite.rel.type.RelDataType&gt;&nbsp;list0,
        java.util.List&lt;org.apache.calcite.rel.type.RelDataType&gt;&nbsp;list1)</code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code>private static com.google.common.collect.ImmutableList&lt;org.apache.calcite.rel.type.RelDataType&gt;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#combine(java.util.List,java.util.List,java.util.List)">combine</a></span>&#8203;(java.util.List&lt;org.apache.calcite.rel.type.RelDataType&gt;&nbsp;list0,
        java.util.List&lt;org.apache.calcite.rel.type.RelDataType&gt;&nbsp;list1,
        java.util.List&lt;org.apache.calcite.rel.type.RelDataType&gt;&nbsp;list2)</code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code>private static boolean</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#contains(java.util.List,org.apache.calcite.rel.type.RelDataType)">contains</a></span>&#8203;(java.util.List&lt;org.apache.calcite.rel.type.RelDataType&gt;&nbsp;types,
         org.apache.calcite.rel.type.RelDataType&nbsp;type)</code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code>private org.apache.calcite.rel.type.RelDataType</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#decimalType(int,int)">decimalType</a></span>&#8203;(int&nbsp;precision,
            int&nbsp;scale)</code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code>private boolean</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#equals(java.lang.Object,java.lang.Object)">equals</a></span>&#8203;(java.lang.Object&nbsp;o1,
       java.lang.Object&nbsp;o2)</code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code>(package private) <a href="../sql/test/SqlTestFactory.MockCatalogReaderFactory.html" title="interface in org.apache.calcite.sql.test">SqlTestFactory.MockCatalogReaderFactory</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCatalogReaderFactory()">getCatalogReaderFactory</a></span>()</code></th>
 <td class="colLast">&nbsp;</td>
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 <tr id="i10" class="altColor">
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 <tr id="i11" class="rowColor">
 <td class="colFirst"><code>private void</code></td>
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 <td class="colFirst"><code>private void</code></td>
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 <td class="colLast">
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 </tr>
 <tr id="i17" class="rowColor">
 <td class="colFirst"><code>private void</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#shouldNotCast(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.sql.type.SqlTypeFamily)">shouldNotCast</a></span>&#8203;(org.apache.calcite.rel.type.RelDataType&nbsp;from,
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 <td class="colLast">&nbsp;</td>
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 <td class="colLast">
 <div class="block">Test arithmetic expressions with string type arguments.</div>
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 <tr id="i19" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testBinaryComparisonCoercion()">testBinaryComparisonCoercion</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Test cases for binary comparison expressions.</div>
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 <tr id="i20" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testBuiltinFunctionCoercion()">testBuiltinFunctionCoercion</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Test case for <code>AbstractTypeCoercion.implicitCast(org.apache.calcite.rel.type.RelDataType, org.apache.calcite.sql.type.SqlTypeFamily)</code>.</div>
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 </tr>
 <tr id="i21" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testCaseWhen()">testCaseWhen</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Test case for case when expression and COALESCE operator.</div>
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 <tr id="i22" class="altColor">
 <td class="colFirst"><code>void</code></td>
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 <td class="colLast">
 <div class="block">Test case for <code>TypeCoercion.getTightestCommonType(org.apache.calcite.rel.type.RelDataType, org.apache.calcite.rel.type.RelDataType)</code>.</div>
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 <tr id="i23" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testImplicitCasts()">testImplicitCasts</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Test case for <code>AbstractTypeCoercion.implicitCast(org.apache.calcite.rel.type.RelDataType, org.apache.calcite.sql.type.SqlTypeFamily)</code></div>
 </td>
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 <tr id="i24" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#testSetOperations()">testSetOperations</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Test set operations: UNION, INTERSECT, EXCEPT type coercion.</div>
 </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="#testWiderTypeFor()">testWiderTypeFor</a></span>()</code></th>
 <td class="colLast">
 <div class="block">Test case for <code>TypeCoercion.getWiderTypeForTwo(org.apache.calcite.rel.type.RelDataType, org.apache.calcite.rel.type.RelDataType, boolean)</code>
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 <td class="colFirst"><code>private java.lang.String</code></td>
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 <pre class="methodSignature">private&nbsp;void&nbsp;checkCommonType&#8203;(org.apache.calcite.rel.type.RelDataType&nbsp;type1,
                              org.apache.calcite.rel.type.RelDataType&nbsp;type2,
                              org.apache.calcite.rel.type.RelDataType&nbsp;expected,
                              boolean&nbsp;isSymmetric)</pre>
 <div class="block">Decision method for finding a common type.</div>
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 </ul>
 <a id="checkWiderType(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType,boolean,boolean)">
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 <pre class="methodSignature">private&nbsp;void&nbsp;checkWiderType&#8203;(org.apache.calcite.rel.type.RelDataType&nbsp;type1,
                             org.apache.calcite.rel.type.RelDataType&nbsp;type2,
                             org.apache.calcite.rel.type.RelDataType&nbsp;expected,
                             boolean&nbsp;stringPromotion,
                             boolean&nbsp;isSymmetric)</pre>
 <div class="block">Decision method for finding a wider type.</div>
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 <pre class="methodSignature">public&nbsp;<a href="../sql/test/SqlTester.html" title="interface in org.apache.calcite.sql.test">SqlTester</a>&nbsp;getTester()</pre>
 <div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="SqlValidatorTestCase.html#getTester()">SqlValidatorTestCase</a></code></span></div>
 <div class="block">Returns a tester. Derived classes should override this method to run the
  same set of tests in a different testing environment.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
 <dd><code><a href="SqlValidatorTestCase.html#getTester()">getTester</a></code>&nbsp;in class&nbsp;<code><a href="SqlValidatorTestCase.html" title="class in org.apache.calcite.test">SqlValidatorTestCase</a></code></dd>
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 <pre class="methodSignature">private static&nbsp;com.google.common.collect.ImmutableList&lt;org.apache.calcite.rel.type.RelDataType&gt;&nbsp;combine&#8203;(java.util.List&lt;org.apache.calcite.rel.type.RelDataType&gt;&nbsp;list0,
                                                                                                         java.util.List&lt;org.apache.calcite.rel.type.RelDataType&gt;&nbsp;list1)</pre>
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 <pre class="methodSignature">private static&nbsp;com.google.common.collect.ImmutableList&lt;org.apache.calcite.rel.type.RelDataType&gt;&nbsp;combine&#8203;(java.util.List&lt;org.apache.calcite.rel.type.RelDataType&gt;&nbsp;list0,
                                                                                                         java.util.List&lt;org.apache.calcite.rel.type.RelDataType&gt;&nbsp;list1,
                                                                                                         java.util.List&lt;org.apache.calcite.rel.type.RelDataType&gt;&nbsp;list2)</pre>
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 <div class="block">Test case for <code>TypeCoercion.getTightestCommonType(org.apache.calcite.rel.type.RelDataType, org.apache.calcite.rel.type.RelDataType)</code>.</div>
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 <div class="block">Test case for <code>TypeCoercion.getWiderTypeForTwo(org.apache.calcite.rel.type.RelDataType, org.apache.calcite.rel.type.RelDataType, boolean)</code>
  and <code>TypeCoercion.getWiderTypeFor(java.util.List&lt;org.apache.calcite.rel.type.RelDataType&gt;, boolean)</code></div>
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