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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.sql.fun</a></div> |
| <h2 title="Class SqlDatePartFunction" class="title">Class SqlDatePartFunction</h2> |
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| <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> |
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| <li>org.apache.calcite.sql.fun.SqlDatePartFunction</li> |
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| <pre>public class <span class="typeNameLabel">SqlDatePartFunction</span> |
| extends <a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></pre> |
| <div class="block">SqlDatePartFunction represents the SQL:1999 standard <code>YEAR</code>, |
| <code>QUARTER</code>, <code>MONTH</code> and <code>DAY</code> functions.</div> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>private org.apache.calcite.avatica.util.TimeUnit</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#timeUnit">timeUnit</a></span></code></th> |
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| <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="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.lang.String,org.apache.calcite.avatica.util.TimeUnit)">SqlDatePartFunction</a></span>​(java.lang.String name, |
| org.apache.calcite.avatica.util.TimeUnit timeUnit)</code></th> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkOperandTypes(org.apache.calcite.sql.SqlCallBinding,boolean)">checkOperandTypes</a></span>​(<a href="../SqlCallBinding.html" title="class in org.apache.calcite.sql">SqlCallBinding</a> callBinding, |
| boolean throwOnFailure)</code></th> |
| <td class="colLast"> |
| <div class="block">Checks that the operand values in a <a href="../SqlCall.html" title="class in org.apache.calcite.sql"><code>SqlCall</code></a> to this operator are |
| valid.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../SqlOperandCountRange.html" title="interface in org.apache.calcite.sql">SqlOperandCountRange</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getOperandCountRange()">getOperandCountRange</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a constraint on the number of operands expected by this operator.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSignatureTemplate(int)">getSignatureTemplate</a></span>​(int operandsCount)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a template describing how the operator signature is to be built.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#rewriteCall(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.SqlCall)">rewriteCall</a></span>​(<a href="../validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="../SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</code></th> |
| <td class="colLast"> |
| <div class="block">Rewrites a call to this operator.</div> |
| </td> |
| </tr> |
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| <h3>Methods inherited from class org.apache.calcite.sql.<a href="../SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></h3> |
| <code><a href="../SqlFunction.html#deriveType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)">deriveType</a>, <a href="../SqlFunction.html#getFunctionType()">getFunctionType</a>, <a href="../SqlFunction.html#getNameAsId()">getNameAsId</a>, <a href="../SqlFunction.html#getParamNames()">getParamNames</a>, <a href="../SqlFunction.html#getParamTypes()">getParamTypes</a>, <a href="../SqlFunction.html#getSqlIdentifier()">getSqlIdentifier</a>, <a href="../SqlFunction.html#getSyntax()">getSyntax</a>, <a href="../SqlFunction.html#isQuantifierAllowed()">isQuantifierAllowed</a>, <a href="../SqlFunction.html#unparse(org.apache.calcite.sql.SqlWriter,org.apache.calcite.sql.SqlCall,int,int)">unparse</a>, <a href="../SqlFunction.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>, <a href="../SqlFunction.html#validateQuantifier(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.SqlCall)">validateQuantifier</a></code></li> |
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| <h3>Methods inherited from class 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#acceptCall(org.apache.calcite.sql.util.SqlVisitor,org.apache.calcite.sql.SqlCall,boolean,org.apache.calcite.sql.util.SqlBasicVisitor.ArgHandler)">acceptCall</a>, <a href="../SqlOperator.html#adjustType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.SqlCall,org.apache.calcite.rel.type.RelDataType)">adjustType</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#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#getMonotonicity(org.apache.calcite.sql.SqlOperatorBinding)">getMonotonicity</a>, <a href="../SqlOperator.html#getName()">getName</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#rightPrec(int,boolean)">rightPrec</a>, <a href="../SqlOperator.html#toString()">toString</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>, <a href="../SqlOperator.html#validRexOperands(int,org.apache.calcite.util.Litmus)">validRexOperands</a></code></li> |
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| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, finalize, getClass, notify, notifyAll, wait, wait, wait</code></li> |
| </ul> |
| </li> |
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| <h3>Field Detail</h3> |
| <a id="timeUnit"> |
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| </a> |
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| <h4>timeUnit</h4> |
| <pre>private final org.apache.calcite.avatica.util.TimeUnit timeUnit</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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| <h3>Constructor Detail</h3> |
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| <h4>SqlDatePartFunction</h4> |
| <pre>public SqlDatePartFunction​(java.lang.String name, |
| org.apache.calcite.avatica.util.TimeUnit timeUnit)</pre> |
| </li> |
| </ul> |
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| </ul> |
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| <h4>rewriteCall</h4> |
| <pre class="methodSignature">public <a href="../SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a> rewriteCall​(<a href="../validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="../SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../SqlOperator.html#rewriteCall(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.SqlCall)">SqlOperator</a></code></span></div> |
| <div class="block">Rewrites a call to this operator. Some operators are implemented as |
| trivial rewrites (e.g. NULLIF becomes CASE). However, we don't do this at |
| createCall time because we want to preserve the original SQL syntax as |
| much as possible; instead, we do this before the call is validated (so |
| the trivial operator doesn't need its own implementation of type |
| derivation methods). The default implementation is to just return the |
| original call without any rewrite.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../SqlOperator.html#rewriteCall(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.SqlCall)">rewriteCall</a></code> in class <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>validator</code> - Validator</dd> |
| <dd><code>call</code> - Call to be rewritten</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>rewritten call</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getOperandCountRange()"> |
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| <h4>getOperandCountRange</h4> |
| <pre class="methodSignature">public <a href="../SqlOperandCountRange.html" title="interface in org.apache.calcite.sql">SqlOperandCountRange</a> getOperandCountRange()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../SqlOperator.html#getOperandCountRange()">SqlOperator</a></code></span></div> |
| <div class="block">Returns a constraint on the number of operands expected by this operator. |
| Subclasses may override this method; when they don't, the range is |
| derived from the <a href="../type/SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type"><code>SqlOperandTypeChecker</code></a> associated with this |
| operator.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../SqlOperator.html#getOperandCountRange()">getOperandCountRange</a></code> in class <code><a href="../SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>acceptable range</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getSignatureTemplate(int)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSignatureTemplate</h4> |
| <pre class="methodSignature">public java.lang.String getSignatureTemplate​(int operandsCount)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../SqlOperator.html#getSignatureTemplate(int)">SqlOperator</a></code></span></div> |
| <div class="block">Returns a template describing how the operator signature is to be built. |
| E.g for the binary + operator the template looks like "{1} {0} {2}" {0} |
| is the operator, subsequent numbers are operands.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../SqlOperator.html#getSignatureTemplate(int)">getSignatureTemplate</a></code> in class <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>operandsCount</code> - is used with functions that can take a variable |
| number of operands</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>signature template, or null to indicate that a default template |
| will suffice</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="checkOperandTypes(org.apache.calcite.sql.SqlCallBinding,boolean)"> |
| <!-- --> |
| </a> |
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| <h4>checkOperandTypes</h4> |
| <pre class="methodSignature">public boolean checkOperandTypes​(<a href="../SqlCallBinding.html" title="class in org.apache.calcite.sql">SqlCallBinding</a> callBinding, |
| boolean throwOnFailure)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../SqlOperator.html#checkOperandTypes(org.apache.calcite.sql.SqlCallBinding,boolean)">SqlOperator</a></code></span></div> |
| <div class="block">Checks that the operand values in a <a href="../SqlCall.html" title="class in org.apache.calcite.sql"><code>SqlCall</code></a> to this operator are |
| valid. Subclasses must either override this method or supply an instance |
| of <a href="../type/SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type"><code>SqlOperandTypeChecker</code></a> to the constructor.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../SqlOperator.html#checkOperandTypes(org.apache.calcite.sql.SqlCallBinding,boolean)">checkOperandTypes</a></code> in class <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>callBinding</code> - description of call</dd> |
| <dd><code>throwOnFailure</code> - whether to throw an exception if check fails |
| (otherwise returns false in that case)</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>whether check succeeded</dd> |
| </dl> |
| </li> |
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