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 <div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.sql.type</a></div>
 <h2 title="Class OperandTypes" class="title">Class OperandTypes</h2>
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 <pre>public abstract class <span class="typeNameLabel">OperandTypes</span>
 extends java.lang.Object</pre>
 <div class="block">Strategies for checking operand types.

  <p>This class defines singleton instances of strategy objects for operand
  type checking. <a href="ReturnTypes.html" title="class in org.apache.calcite.sql.type"><code>ReturnTypes</code></a>
  and <a href="InferTypes.html" title="class in org.apache.calcite.sql.type"><code>InferTypes</code></a> provide similar strategies
  for operand type inference and operator return type inference.

  <p>Note to developers: avoid anonymous inner classes here except for unique,
  non-generalizable strategies; anything else belongs in a reusable top-level
  class. If you find yourself copying and pasting an existing strategy's
  anonymous inner class, you're making a mistake.</div>
 <dl>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type"><code>SqlOperandTypeChecker</code></a>,
 <a href="ReturnTypes.html" title="class in org.apache.calcite.sql.type"><code>ReturnTypes</code></a>,
 <a href="InferTypes.html" title="class in org.apache.calcite.sql.type"><code>InferTypes</code></a></dd>
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 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colSecond" scope="col">Class</th>
 <th class="colLast" scope="col">Description</th>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private static class&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="OperandTypes.PeriodOperandTypeChecker.html" title="class in org.apache.calcite.sql.type">OperandTypes.PeriodOperandTypeChecker</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type checker that accepts period types:
  PERIOD (DATETIME, DATETIME)
  PERIOD (DATETIME, INTERVAL)
  [ROW] (DATETIME, DATETIME)
  [ROW] (DATETIME, INTERVAL)</div>
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 <th class="colSecond" scope="col">Field</th>
 <th class="colLast" scope="col">Description</th>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ANY">ANY</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ANY_ANY">ANY_ANY</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ANY_NUMERIC">ANY_NUMERIC</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ARRAY">ARRAY</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#BINARY">BINARY</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#BOOLEAN">BOOLEAN</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#BOOLEAN_BOOLEAN">BOOLEAN_BOOLEAN</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#CBSTRING_INTEGER">CBSTRING_INTEGER</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy where the first operand is a character or
  binary string (CHAR, VARCHAR, BINARY or VARBINARY), and the second operand
  is INTEGER.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#CHARACTER">CHARACTER</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#COLLECTION">COLLECTION</a></span></code></th>
 <td class="colLast">
 <div class="block">Checks that returns whether a value is a multiset or an array.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#COLLECTION_OR_MAP">COLLECTION_OR_MAP</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#COMPARABLE_ORDERED">COMPARABLE_ORDERED</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy where operand type must allow ordered
  comparisons.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#COMPARABLE_ORDERED_COMPARABLE_ORDERED">COMPARABLE_ORDERED_COMPARABLE_ORDERED</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy where operand types must allow ordered
  comparisons.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#COMPARABLE_UNORDERED_COMPARABLE_UNORDERED">COMPARABLE_UNORDERED_COMPARABLE_UNORDERED</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy where operand types must allow unordered
  comparisons.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DATETIME">DATETIME</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DATETIME_INTERVAL">DATETIME_INTERVAL</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DATETIME_INTERVAL_INTERVAL">DATETIME_INTERVAL_INTERVAL</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DATETIME_INTERVAL_INTERVAL_TIME">DATETIME_INTERVAL_INTERVAL_TIME</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DATETIME_INTERVAL_TIME">DATETIME_INTERVAL_TIME</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DIVISION_OPERATOR">DIVISION_OPERATOR</a></span></code></th>
 <td class="colLast">
 <div class="block">Type checking strategy for the "/" operator</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#EXACT_NUMERIC">EXACT_NUMERIC</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#EXACT_NUMERIC_EXACT_NUMERIC">EXACT_NUMERIC_EXACT_NUMERIC</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#INTEGER">INTEGER</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#INTERVAL">INTERVAL</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#INTERVAL_DATETIME">INTERVAL_DATETIME</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="FamilyOperandTypeChecker.html" title="class in org.apache.calcite.sql.type">FamilyOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#INTERVAL_INTERVAL">INTERVAL_INTERVAL</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#INTERVAL_NUMERIC">INTERVAL_NUMERIC</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#INTERVAL_SAME_SAME">INTERVAL_SAME_SAME</a></span></code></th>
 <td class="colLast">
 <div class="block">Parameter type-checking strategy type must a nullable time interval,
  nullable time interval</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#INTERVALINTERVAL_INTERVALDATETIME">INTERVALINTERVAL_INTERVALDATETIME</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#LITERAL">LITERAL</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy type must be a non-NULL literal.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="FamilyOperandTypeChecker.html" title="class in org.apache.calcite.sql.type">FamilyOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#MINUS_DATE_OPERATOR">MINUS_DATE_OPERATOR</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#MINUS_OPERATOR">MINUS_OPERATOR</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#MULTIPLY_OPERATOR">MULTIPLY_OPERATOR</a></span></code></th>
 <td class="colLast">
 <div class="block">Type checking strategy for the "*" operator</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#MULTISET">MULTISET</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#MULTISET_MULTISET">MULTISET_MULTISET</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NILADIC">NILADIC</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy for an operator which takes no operands.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NULLABLE_LITERAL">NULLABLE_LITERAL</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy where type must be a literal or NULL.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NUMERIC">NUMERIC</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NUMERIC_INTEGER">NUMERIC_INTEGER</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NUMERIC_INTERVAL">NUMERIC_INTERVAL</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NUMERIC_NUMERIC">NUMERIC_NUMERIC</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NUMERIC_OPTIONAL_INTEGER">NUMERIC_OPTIONAL_INTEGER</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NUMERIC_OR_INTERVAL">NUMERIC_OR_INTERVAL</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NUMERIC_OR_STRING">NUMERIC_OR_STRING</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ONE_OR_MORE">ONE_OR_MORE</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy that allows one or more operands.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#PERIOD">PERIOD</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#PERIOD_OR_DATETIME">PERIOD_OR_DATETIME</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#PLUS_OPERATOR">PLUS_OPERATOR</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#POSITIVE_INTEGER_LITERAL">POSITIVE_INTEGER_LITERAL</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy type must be a positive integer non-NULL
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 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#RECORD_COLLECTION">RECORD_COLLECTION</a></span></code></th>
 <td class="colLast">
 <div class="block">Checker that returns whether a value is a multiset of records or an
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 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#RECORD_TO_SCALAR">RECORD_TO_SCALAR</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#SAME_SAME">SAME_SAME</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy where two operands must both be in the
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 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#SAME_SAME_INTEGER">SAME_SAME_INTEGER</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#SAME_SAME_SAME">SAME_SAME_SAME</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy where three operands must all be in the
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 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#SAME_VARIADIC">SAME_VARIADIC</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy where any number of operands must all be
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 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#SCALAR_OR_RECORD_COLLECTION">SCALAR_OR_RECORD_COLLECTION</a></span></code></th>
 <td class="colLast">
 <div class="block">Checker that returns whether a value is a collection (multiset or array)
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 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#SCALAR_OR_RECORD_COLLECTION_OR_MAP">SCALAR_OR_RECORD_COLLECTION_OR_MAP</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#SET_OP">SET_OP</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy for a set operator (UNION, INTERSECT,
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 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#STRING">STRING</a></span></code></th>
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 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#STRING_INTEGER">STRING_INTEGER</a></span></code></th>
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 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#STRING_SAME_SAME">STRING_SAME_SAME</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy where two operands must both be in the
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 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#STRING_SAME_SAME_INTEGER">STRING_SAME_SAME_INTEGER</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy where two operands must both be in the
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 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#STRING_SAME_SAME_SAME">STRING_SAME_SAME_SAME</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy where three operands must all be in the
  same string type family.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="FamilyOperandTypeChecker.html" title="class in org.apache.calcite.sql.type">FamilyOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#STRING_STRING">STRING_STRING</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#STRING_STRING_INTEGER">STRING_STRING_INTEGER</a></span></code></th>
 <td class="colLast">&nbsp;</td>
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 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#STRING_STRING_INTEGER_INTEGER">STRING_STRING_INTEGER_INTEGER</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="FamilyOperandTypeChecker.html" title="class in org.apache.calcite.sql.type">FamilyOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#STRING_STRING_STRING">STRING_STRING_STRING</a></span></code></th>
 <td class="colLast">&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#VARIADIC">VARIADIC</a></span></code></th>
 <td class="colLast">
 <div class="block">Operand type-checking strategy for an operator with no restrictions on
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 <th class="colFirst" scope="col">Modifier and Type</th>
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 <td class="colFirst"><code>static <a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#and(org.apache.calcite.sql.type.SqlOperandTypeChecker...)">and</a></span>&#8203;(<a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a>...&nbsp;rules)</code></th>
 <td class="colLast">
 <div class="block">Creates a checker that passes if all of the rules pass.</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
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 <td class="colLast">
 <div class="block">Creates a single-operand checker that passes if all of the rules
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 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>static <a href="FamilyOperandTypeChecker.html" title="class in org.apache.calcite.sql.type">FamilyOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#family(java.util.List)">family</a></span>&#8203;(java.util.List&lt;<a href="SqlTypeFamily.html" title="enum in org.apache.calcite.sql.type">SqlTypeFamily</a>&gt;&nbsp;families)</code></th>
 <td class="colLast">
 <div class="block">Creates a checker that passes if each operand is a member of a
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 </td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>static <a href="FamilyOperandTypeChecker.html" title="class in org.apache.calcite.sql.type">FamilyOperandTypeChecker</a></code></td>
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 <td class="colLast">
 <div class="block">Creates a checker that passes if each operand is a member of a
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 </td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code>static <a href="FamilyOperandTypeChecker.html" title="class in org.apache.calcite.sql.type">FamilyOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#family(org.apache.calcite.sql.type.SqlTypeFamily...)">family</a></span>&#8203;(<a href="SqlTypeFamily.html" title="enum in org.apache.calcite.sql.type">SqlTypeFamily</a>...&nbsp;families)</code></th>
 <td class="colLast">
 <div class="block">Creates a checker that passes if each operand is a member of a
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 </td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code>static <a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#or(org.apache.calcite.sql.type.SqlOperandTypeChecker...)">or</a></span>&#8203;(<a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a>...&nbsp;rules)</code></th>
 <td class="colLast">
 <div class="block">Creates a checker that passes if any one of the rules passes.</div>
 </td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code>static <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#or(org.apache.calcite.sql.type.SqlSingleOperandTypeChecker...)">or</a></span>&#8203;(<a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a>...&nbsp;rules)</code></th>
 <td class="colLast">
 <div class="block">Creates a single-operand checker that passes if any one of the rules
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 </td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code>static <a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#repeat(org.apache.calcite.sql.SqlOperandCountRange,org.apache.calcite.sql.type.SqlSingleOperandTypeChecker...)">repeat</a></span>&#8203;(<a href="../SqlOperandCountRange.html" title="interface in org.apache.calcite.sql">SqlOperandCountRange</a>&nbsp;range,
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 <td class="colLast">
 <div class="block">Creates a checker that passes if all of the rules pass for each operand,
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 </td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code>static <a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#sequence(java.lang.String,org.apache.calcite.sql.type.SqlSingleOperandTypeChecker...)">sequence</a></span>&#8203;(java.lang.String&nbsp;allowedSignatures,
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 <td class="colLast">
 <div class="block">Creates an operand checker from a sequence of single-operand checkers.</div>
 </td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code>static <a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#variadic(org.apache.calcite.sql.SqlOperandCountRange)">variadic</a></span>&#8203;(<a href="../SqlOperandCountRange.html" title="interface in org.apache.calcite.sql">SqlOperandCountRange</a>&nbsp;range)</code></th>
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 <h4>OperandTypes</h4>
 <pre>private&nbsp;OperandTypes()</pre>
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 <pre class="methodSignature">public static&nbsp;<a href="FamilyOperandTypeChecker.html" title="class in org.apache.calcite.sql.type">FamilyOperandTypeChecker</a>&nbsp;family&#8203;(<a href="SqlTypeFamily.html" title="enum in org.apache.calcite.sql.type">SqlTypeFamily</a>...&nbsp;families)</pre>
 <div class="block">Creates a checker that passes if each operand is a member of a
  corresponding family.</div>
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 <pre class="methodSignature">public static&nbsp;<a href="FamilyOperandTypeChecker.html" title="class in org.apache.calcite.sql.type">FamilyOperandTypeChecker</a>&nbsp;family&#8203;(java.util.List&lt;<a href="SqlTypeFamily.html" title="enum in org.apache.calcite.sql.type">SqlTypeFamily</a>&gt;&nbsp;families,
                                               java.util.function.Predicate&lt;java.lang.Integer&gt;&nbsp;optional)</pre>
 <div class="block">Creates a checker that passes if each operand is a member of a
  corresponding family, and allows specified parameters to be optional.</div>
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 <pre class="methodSignature">public static&nbsp;<a href="FamilyOperandTypeChecker.html" title="class in org.apache.calcite.sql.type">FamilyOperandTypeChecker</a>&nbsp;family&#8203;(java.util.List&lt;<a href="SqlTypeFamily.html" title="enum in org.apache.calcite.sql.type">SqlTypeFamily</a>&gt;&nbsp;families)</pre>
 <div class="block">Creates a checker that passes if each operand is a member of a
  corresponding family.</div>
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 <h4>or</h4>
 <pre class="methodSignature">public static&nbsp;<a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a>&nbsp;or&#8203;(<a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a>...&nbsp;rules)</pre>
 <div class="block">Creates a checker that passes if any one of the rules passes.</div>
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 <h4>and</h4>
 <pre class="methodSignature">public static&nbsp;<a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a>&nbsp;and&#8203;(<a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a>...&nbsp;rules)</pre>
 <div class="block">Creates a checker that passes if all of the rules pass.</div>
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 <pre class="methodSignature">public static&nbsp;<a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a>&nbsp;or&#8203;(<a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a>...&nbsp;rules)</pre>
 <div class="block">Creates a single-operand checker that passes if any one of the rules
  passes.</div>
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 <pre class="methodSignature">public static&nbsp;<a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a>&nbsp;and&#8203;(<a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a>...&nbsp;rules)</pre>
 <div class="block">Creates a single-operand checker that passes if all of the rules
  pass.</div>
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 <pre class="methodSignature">public static&nbsp;<a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a>&nbsp;sequence&#8203;(java.lang.String&nbsp;allowedSignatures,
                                              <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a>...&nbsp;rules)</pre>
 <div class="block">Creates an operand checker from a sequence of single-operand checkers.</div>
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 <pre class="methodSignature">public static&nbsp;<a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a>&nbsp;repeat&#8203;(<a href="../SqlOperandCountRange.html" title="interface in org.apache.calcite.sql">SqlOperandCountRange</a>&nbsp;range,
                                            <a href="SqlSingleOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlSingleOperandTypeChecker</a>...&nbsp;rules)</pre>
 <div class="block">Creates a checker that passes if all of the rules pass for each operand,
  using a given operand count strategy.</div>
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 <pre class="methodSignature">public static&nbsp;<a href="SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a>&nbsp;variadic&#8203;(<a href="../SqlOperandCountRange.html" title="interface in org.apache.calcite.sql">SqlOperandCountRange</a>&nbsp;range)</pre>
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