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<h2 title="Class SqlOverOperator" class="title">Class SqlOverOperator</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
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<li><a href="SqlOperator.html" title="class in org.apache.calcite.sql">org.apache.calcite.sql.SqlOperator</a></li>
<li>
<ul class="inheritance">
<li><a href="SqlBinaryOperator.html" title="class in org.apache.calcite.sql">org.apache.calcite.sql.SqlBinaryOperator</a></li>
<li>
<ul class="inheritance">
<li>org.apache.calcite.sql.SqlOverOperator</li>
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<pre>public class <span class="typeNameLabel">SqlOverOperator</span>
extends <a href="SqlBinaryOperator.html" title="class in org.apache.calcite.sql">SqlBinaryOperator</a></pre>
<div class="block">An operator describing a window function specification.
<p>Operands are as follows:</p>
<ul>
<li>0: name of window function (<a href="SqlCall.html" title="class in org.apache.calcite.sql"><code>SqlCall</code></a>)</li>
<li>1: window name (<a href="SqlLiteral.html" title="class in org.apache.calcite.sql"><code>SqlLiteral</code></a>) or
window in-line specification (<a href="SqlWindow.html" title="class in org.apache.calcite.sql"><code>SqlWindow</code></a>)</li>
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<h3>Fields inherited from class&nbsp;org.apache.calcite.sql.<a href="SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></h3>
<code><a href="SqlOperator.html#kind">kind</a>, <a href="SqlOperator.html#MDX_PRECEDENCE">MDX_PRECEDENCE</a>, <a href="SqlOperator.html#NL">NL</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()">SqlOverOperator</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
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<td class="colFirst"><code>&lt;R&gt;&nbsp;void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#acceptCall(org.apache.calcite.sql.util.SqlVisitor,org.apache.calcite.sql.SqlCall,boolean,org.apache.calcite.sql.util.SqlBasicVisitor.ArgHandler)">acceptCall</a></span>&#8203;(<a href="util/SqlVisitor.html" title="interface in org.apache.calcite.sql.util">SqlVisitor</a>&lt;R&gt;&nbsp;visitor,
<a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a>&nbsp;call,
boolean&nbsp;onlyExpressions,
<a href="util/SqlBasicVisitor.ArgHandler.html" title="interface in org.apache.calcite.sql.util">SqlBasicVisitor.ArgHandler</a>&lt;R&gt;&nbsp;argHandler)</code></th>
<td class="colLast">
<div class="block">Accepts a <a href="util/SqlVisitor.html" title="interface in org.apache.calcite.sql.util"><code>SqlVisitor</code></a>, and tells it to visit each child.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#deriveType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)">deriveType</a></span>&#8203;(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a>&nbsp;validator,
<a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a>&nbsp;scope,
<a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a>&nbsp;call)</code></th>
<td class="colLast">
<div class="block">Derives the type of a call to this operator.</div>
</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#validateCall(org.apache.calcite.sql.SqlCall,org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.validate.SqlValidatorScope)">validateCall</a></span>&#8203;(<a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a>&nbsp;call,
<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a>&nbsp;validator,
<a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a>&nbsp;scope,
<a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a>&nbsp;operandScope)</code></th>
<td class="colLast">
<div class="block">Validates a call to this operator.</div>
</td>
</tr>
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<h3>Methods inherited from class&nbsp;org.apache.calcite.sql.<a href="SqlBinaryOperator.html" title="class in org.apache.calcite.sql">SqlBinaryOperator</a></h3>
<code><a href="SqlBinaryOperator.html#adjustType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.SqlCall,org.apache.calcite.rel.type.RelDataType)">adjustType</a>, <a href="SqlBinaryOperator.html#getMonotonicity(org.apache.calcite.sql.SqlOperatorBinding)">getMonotonicity</a>, <a href="SqlBinaryOperator.html#getSignatureTemplate(int)">getSignatureTemplate</a>, <a href="SqlBinaryOperator.html#getSyntax()">getSyntax</a>, <a href="SqlBinaryOperator.html#needsSpace()">needsSpace</a>, <a href="SqlBinaryOperator.html#validRexOperands(int,org.apache.calcite.util.Litmus)">validRexOperands</a></code></li>
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<h3>Methods inherited from class&nbsp;org.apache.calcite.sql.<a href="SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></h3>
<code><a href="SqlOperator.html#acceptCall(org.apache.calcite.sql.util.SqlVisitor,org.apache.calcite.sql.SqlCall)">acceptCall</a>, <a href="SqlOperator.html#allowsFraming()">allowsFraming</a>, <a href="SqlOperator.html#argumentMustBeScalar(int)">argumentMustBeScalar</a>, <a href="SqlOperator.html#checkOperandCount(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.type.SqlOperandTypeChecker,org.apache.calcite.sql.SqlCall)">checkOperandCount</a>, <a href="SqlOperator.html#checkOperandTypes(org.apache.calcite.sql.SqlCallBinding,boolean)">checkOperandTypes</a>, <a href="SqlOperator.html#constructArgNameList(org.apache.calcite.sql.SqlCall)">constructArgNameList</a>, <a href="SqlOperator.html#constructArgTypeList(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall,java.util.List,boolean)">constructArgTypeList</a>, <a href="SqlOperator.html#constructOperandList(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.SqlCall,java.util.List)">constructOperandList</a>, <a href="SqlOperator.html#createCall(org.apache.calcite.sql.parser.SqlParserPos,java.util.List)">createCall</a>, <a href="SqlOperator.html#createCall(org.apache.calcite.sql.parser.SqlParserPos,org.apache.calcite.sql.SqlNode...)">createCall</a>, <a href="SqlOperator.html#createCall(org.apache.calcite.sql.SqlLiteral,org.apache.calcite.sql.parser.SqlParserPos,org.apache.calcite.sql.SqlNode...)">createCall</a>, <a href="SqlOperator.html#createCall(org.apache.calcite.sql.SqlNodeList)">createCall</a>, <a href="SqlOperator.html#equals(java.lang.Object)">equals</a>, <a href="SqlOperator.html#getAllowedSignatures()">getAllowedSignatures</a>, <a href="SqlOperator.html#getAllowedSignatures(java.lang.String)">getAllowedSignatures</a>, <a href="SqlOperator.html#getKind()">getKind</a>, <a href="SqlOperator.html#getLeftPrec()">getLeftPrec</a>, <a href="SqlOperator.html#getMonotonicity(org.apache.calcite.sql.SqlCall,org.apache.calcite.sql.validate.SqlValidatorScope)">getMonotonicity</a>, <a href="SqlOperator.html#getName()">getName</a>, <a href="SqlOperator.html#getNameAsId()">getNameAsId</a>, <a href="SqlOperator.html#getOperandCountRange()">getOperandCountRange</a>, <a href="SqlOperator.html#getOperandTypeChecker()">getOperandTypeChecker</a>, <a href="SqlOperator.html#getOperandTypeInference()">getOperandTypeInference</a>, <a href="SqlOperator.html#getReturnTypeInference()">getReturnTypeInference</a>, <a href="SqlOperator.html#getRightPrec()">getRightPrec</a>, <a href="SqlOperator.html#hashCode()">hashCode</a>, <a href="SqlOperator.html#inferReturnType(org.apache.calcite.rel.type.RelDataTypeFactory,java.util.List)">inferReturnType</a>, <a href="SqlOperator.html#inferReturnType(org.apache.calcite.sql.SqlOperatorBinding)">inferReturnType</a>, <a href="SqlOperator.html#isAggregator()">isAggregator</a>, <a href="SqlOperator.html#isDeterministic()">isDeterministic</a>, <a href="SqlOperator.html#isDynamicFunction()">isDynamicFunction</a>, <a href="SqlOperator.html#isGroup()">isGroup</a>, <a href="SqlOperator.html#isGroupAuxiliary()">isGroupAuxiliary</a>, <a href="SqlOperator.html#isName(java.lang.String,boolean)">isName</a>, <a href="SqlOperator.html#leftPrec(int,boolean)">leftPrec</a>, <a href="SqlOperator.html#preValidateCall(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)">preValidateCall</a>, <a href="SqlOperator.html#requiresDecimalExpansion()">requiresDecimalExpansion</a>, <a href="SqlOperator.html#requiresOrder()">requiresOrder</a>, <a href="SqlOperator.html#requiresOver()">requiresOver</a>, <a href="SqlOperator.html#rewriteCall(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.SqlCall)">rewriteCall</a>, <a href="SqlOperator.html#rightPrec(int,boolean)">rightPrec</a>, <a href="SqlOperator.html#toString()">toString</a>, <a href="SqlOperator.html#unparse(org.apache.calcite.sql.SqlWriter,org.apache.calcite.sql.SqlCall,int,int)">unparse</a>, <a href="SqlOperator.html#unparseListClause(org.apache.calcite.sql.SqlWriter,org.apache.calcite.sql.SqlNode)">unparseListClause</a>, <a href="SqlOperator.html#unparseListClause(org.apache.calcite.sql.SqlWriter,org.apache.calcite.sql.SqlNode,org.apache.calcite.sql.SqlKind)">unparseListClause</a>, <a href="SqlOperator.html#validateOperands(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)">validateOperands</a></code></li>
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<code>clone, finalize, getClass, notify, notifyAll, wait, wait, wait</code></li>
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<h4>SqlOverOperator</h4>
<pre>public&nbsp;SqlOverOperator()</pre>
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<h3>Method Detail</h3>
<a id="validateCall(org.apache.calcite.sql.SqlCall,org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.validate.SqlValidatorScope)">
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<h4>validateCall</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;validateCall&#8203;(<a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a>&nbsp;call,
<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a>&nbsp;validator,
<a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a>&nbsp;scope,
<a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a>&nbsp;operandScope)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="SqlOperator.html#validateCall(org.apache.calcite.sql.SqlCall,org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.validate.SqlValidatorScope)">SqlOperator</a></code></span></div>
<div class="block">Validates a call to this operator.
<p>This method should not perform type-derivation or perform validation
related related to types. That is done later, by
<a href="SqlOperator.html#deriveType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)"><code>SqlOperator.deriveType(SqlValidator, SqlValidatorScope, SqlCall)</code></a>. This method
should focus on structural validation.
<p>A typical implementation of this method first validates the operands,
then performs some operator-specific logic. The default implementation
just validates the operands.
<p>This method is the default implementation of <a href="SqlCall.html#validate(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope)"><code>SqlCall.validate(org.apache.calcite.sql.validate.SqlValidator, org.apache.calcite.sql.validate.SqlValidatorScope)</code></a>;
but note that some sub-classes of <a href="SqlCall.html" title="class in org.apache.calcite.sql"><code>SqlCall</code></a> never call this method.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="SqlOperator.html#validateCall(org.apache.calcite.sql.SqlCall,org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.validate.SqlValidatorScope)">validateCall</a></code>&nbsp;in class&nbsp;<code><a href="SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>call</code> - the call to this operator</dd>
<dd><code>validator</code> - the active validator</dd>
<dd><code>scope</code> - validator scope</dd>
<dd><code>operandScope</code> - validator scope in which to validate operands to this
call; usually equal to scope, but not always because
some operators introduce new scopes</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="SqlNode.html#validateExpr(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope)"><code>SqlNode.validateExpr(SqlValidator, SqlValidatorScope)</code></a>,
<a href="SqlOperator.html#deriveType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)"><code>SqlOperator.deriveType(SqlValidator, SqlValidatorScope, SqlCall)</code></a></dd>
</dl>
</li>
</ul>
<a id="deriveType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)">
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<h4>deriveType</h4>
<pre class="methodSignature">public&nbsp;<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;deriveType&#8203;(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a>&nbsp;validator,
<a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a>&nbsp;scope,
<a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a>&nbsp;call)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="SqlOperator.html#deriveType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)">SqlOperator</a></code></span></div>
<div class="block">Derives the type of a call to this operator.
<p>This method is an intrinsic part of the validation process so, unlike
<a href="SqlOperator.html#inferReturnType(org.apache.calcite.sql.SqlOperatorBinding)"><code>SqlOperator.inferReturnType(org.apache.calcite.sql.SqlOperatorBinding)</code></a>, specific operators would not typically override
this method.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="SqlBinaryOperator.html#deriveType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)">deriveType</a></code>&nbsp;in class&nbsp;<code><a href="SqlBinaryOperator.html" title="class in org.apache.calcite.sql">SqlBinaryOperator</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>validator</code> - Validator</dd>
<dd><code>scope</code> - Scope of validation</dd>
<dd><code>call</code> - Call to this operator</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Type of call</dd>
</dl>
</li>
</ul>
<a id="acceptCall(org.apache.calcite.sql.util.SqlVisitor,org.apache.calcite.sql.SqlCall,boolean,org.apache.calcite.sql.util.SqlBasicVisitor.ArgHandler)">
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<h4>acceptCall</h4>
<pre class="methodSignature">public&nbsp;&lt;R&gt;&nbsp;void&nbsp;acceptCall&#8203;(<a href="util/SqlVisitor.html" title="interface in org.apache.calcite.sql.util">SqlVisitor</a>&lt;R&gt;&nbsp;visitor,
<a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a>&nbsp;call,
boolean&nbsp;onlyExpressions,
<a href="util/SqlBasicVisitor.ArgHandler.html" title="interface in org.apache.calcite.sql.util">SqlBasicVisitor.ArgHandler</a>&lt;R&gt;&nbsp;argHandler)</pre>
<div class="block">Accepts a <a href="util/SqlVisitor.html" title="interface in org.apache.calcite.sql.util"><code>SqlVisitor</code></a>, and tells it to visit each child.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="SqlOperator.html#acceptCall(org.apache.calcite.sql.util.SqlVisitor,org.apache.calcite.sql.SqlCall,boolean,org.apache.calcite.sql.util.SqlBasicVisitor.ArgHandler)">acceptCall</a></code>&nbsp;in class&nbsp;<code><a href="SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>visitor</code> - Visitor</dd>
<dd><code>call</code> - Call to visit</dd>
<dd><code>onlyExpressions</code> - If true, ignores operands which are not
expressions. For example, in the call to the
<code>AS</code> operator</dd>
<dd><code>argHandler</code> - Called for each operand</dd>
</dl>
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