apidocs/javadocAggregate/org/apache/calcite/sql/SqlFilterOperator.html - calcite-site - Git at Google

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 <div class="subTitle">org.apache.calcite.sql</div>
 <h2 title="类 SqlFilterOperator" class="title">类 SqlFilterOperator</h2>
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 <li><a href="../../../../org/apache/calcite/sql/SqlOperator.html" title="org.apache.calcite.sql中的类">org.apache.calcite.sql.SqlOperator</a></li>
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 <ul class="inheritance">
 <li><a href="../../../../org/apache/calcite/sql/SqlBinaryOperator.html" title="org.apache.calcite.sql中的类">org.apache.calcite.sql.SqlBinaryOperator</a></li>
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 <li>org.apache.calcite.sql.SqlFilterOperator</li>
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 <pre>public class <span class="typeNameLabel">SqlFilterOperator</span>
 extends <a href="../../../../org/apache/calcite/sql/SqlBinaryOperator.html" title="org.apache.calcite.sql中的类">SqlBinaryOperator</a></pre>
 <div class="block">An operator that applies a filter before rows are included in an aggregate
  function.

  <p>Operands are as follows:</p>

  <ul>
  <li>0: a call to an aggregate function (<a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类"><code>SqlCall</code></a>)
  <li>1: predicate
  </ul></div>
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 <h3>字段概要</h3>
 <ul class="blockList">
 <li class="blockList"><a name="fields.inherited.from.class.org.apache.calcite.sql.SqlOperator">
 <!--   -->
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 <h3>从类继承的字段&nbsp;org.apache.calcite.sql.<a href="../../../../org/apache/calcite/sql/SqlOperator.html" title="org.apache.calcite.sql中的类">SqlOperator</a></h3>
 <code><a href="../../../../org/apache/calcite/sql/SqlOperator.html#kind">kind</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#MDX_PRECEDENCE">MDX_PRECEDENCE</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#NL">NL</a></code></li>
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 <caption><span>构造器</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colOne" scope="col">构造器和说明</th>
 </tr>
 <tr class="altColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlFilterOperator.html#SqlFilterOperator--">SqlFilterOperator</a></span>()</code>&nbsp;</td>
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 <h3>方法概要</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="方法概要表, 列表方法和解释">
 <caption><span id="t0" class="activeTableTab"><span>所有方法</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">实例方法</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">具体方法</a></span><span class="tabEnd">&nbsp;</span></span></caption>
 <tr>
 <th class="colFirst" scope="col">限定符和类型</th>
 <th class="colLast" scope="col">方法和说明</th>
 </tr>
 <tr id="i0" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlFilterOperator.html#deriveType-org.apache.calcite.sql.validate.SqlValidator-org.apache.calcite.sql.validate.SqlValidatorScope-org.apache.calcite.sql.SqlCall-">deriveType</a></span>(<a href="../../../../org/apache/calcite/sql/validate/SqlValidator.html" title="org.apache.calcite.sql.validate中的接口">SqlValidator</a>&nbsp;validator,
           <a href="../../../../org/apache/calcite/sql/validate/SqlValidatorScope.html" title="org.apache.calcite.sql.validate中的接口">SqlValidatorScope</a>&nbsp;scope,
           <a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a>&nbsp;call)</code>
 <div class="block">Derives the type of a call to this operator.</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlFilterOperator.html#unparse-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlCall-int-int-">unparse</a></span>(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a>&nbsp;writer,
        <a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a>&nbsp;call,
        int&nbsp;leftPrec,
        int&nbsp;rightPrec)</code>
 <div class="block">Writes a SQL representation of a call to this operator to a writer,
  including parentheses if the operators on either side are of greater
  precedence.</div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlFilterOperator.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></span>(<a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a>&nbsp;call,
             <a href="../../../../org/apache/calcite/sql/validate/SqlValidator.html" title="org.apache.calcite.sql.validate中的接口">SqlValidator</a>&nbsp;validator,
             <a href="../../../../org/apache/calcite/sql/validate/SqlValidatorScope.html" title="org.apache.calcite.sql.validate中的接口">SqlValidatorScope</a>&nbsp;scope,
             <a href="../../../../org/apache/calcite/sql/validate/SqlValidatorScope.html" title="org.apache.calcite.sql.validate中的接口">SqlValidatorScope</a>&nbsp;operandScope)</code>
 <div class="block">Validates a call to this operator.</div>
 </td>
 </tr>
 </table>
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 <h3>从类继承的方法&nbsp;org.apache.calcite.sql.<a href="../../../../org/apache/calcite/sql/SqlBinaryOperator.html" title="org.apache.calcite.sql中的类">SqlBinaryOperator</a></h3>
 <code><a href="../../../../org/apache/calcite/sql/SqlBinaryOperator.html#adjustType-org.apache.calcite.sql.validate.SqlValidator-org.apache.calcite.sql.SqlCall-org.apache.calcite.rel.type.RelDataType-">adjustType</a>, <a href="../../../../org/apache/calcite/sql/SqlBinaryOperator.html#getMonotonicity-org.apache.calcite.sql.SqlOperatorBinding-">getMonotonicity</a>, <a href="../../../../org/apache/calcite/sql/SqlBinaryOperator.html#getSignatureTemplate-int-">getSignatureTemplate</a>, <a href="../../../../org/apache/calcite/sql/SqlBinaryOperator.html#getSyntax--">getSyntax</a>, <a href="../../../../org/apache/calcite/sql/SqlBinaryOperator.html#validRexOperands-int-org.apache.calcite.util.Litmus-">validRexOperands</a></code></li>
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 <h3>从类继承的方法&nbsp;org.apache.calcite.sql.<a href="../../../../org/apache/calcite/sql/SqlOperator.html" title="org.apache.calcite.sql中的类">SqlOperator</a></h3>
 <code><a href="../../../../org/apache/calcite/sql/SqlOperator.html#acceptCall-org.apache.calcite.sql.util.SqlVisitor-org.apache.calcite.sql.SqlCall-">acceptCall</a>, <a href="../../../../org/apache/calcite/sql/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="../../../../org/apache/calcite/sql/SqlOperator.html#allowsFraming--">allowsFraming</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#argumentMustBeScalar-int-">argumentMustBeScalar</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#checkOperandCount-org.apache.calcite.sql.validate.SqlValidator-org.apache.calcite.sql.type.SqlOperandTypeChecker-org.apache.calcite.sql.SqlCall-">checkOperandCount</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#checkOperandTypes-org.apache.calcite.sql.SqlCallBinding-boolean-">checkOperandTypes</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#constructArgNameList-org.apache.calcite.sql.SqlCall-">constructArgNameList</a>, <a href="../../../../org/apache/calcite/sql/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="../../../../org/apache/calcite/sql/SqlOperator.html#constructOperandList-org.apache.calcite.sql.validate.SqlValidator-org.apache.calcite.sql.SqlCall-java.util.List-">constructOperandList</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#createCall-org.apache.calcite.sql.SqlLiteral-org.apache.calcite.sql.parser.SqlParserPos-org.apache.calcite.sql.SqlNode...-">createCall</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#createCall-org.apache.calcite.sql.SqlNodeList-">createCall</a>, <a 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href="../../../../org/apache/calcite/sql/SqlOperator.html#inferReturnType-org.apache.calcite.rel.type.RelDataTypeFactory-java.util.List-">inferReturnType</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#inferReturnType-org.apache.calcite.sql.SqlOperatorBinding-">inferReturnType</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#isAggregator--">isAggregator</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#isDeterministic--">isDeterministic</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#isDynamicFunction--">isDynamicFunction</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#isGroup--">isGroup</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#isGroupAuxiliary--">isGroupAuxiliary</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#isName-java.lang.String-boolean-">isName</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#leftPrec-int-boolean-">leftPrec</a>, <a 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href="../../../../org/apache/calcite/sql/SqlOperator.html#unparseListClause-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-">unparseListClause</a>, <a href="../../../../org/apache/calcite/sql/SqlOperator.html#unparseListClause-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlKind-">unparseListClause</a>, <a href="../../../../org/apache/calcite/sql/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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 <h3>从类继承的方法&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">Object</a></h3>
 <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="java.lang中的类或接口">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="java.lang中的类或接口">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="java.lang中的类或接口">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="java.lang中的类或接口">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="java.lang中的类或接口">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="java.lang中的类或接口">wait</a></code></li>
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 <!-- ========= CONSTRUCTOR DETAIL ======== -->
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 <li class="blockList"><a name="constructor.detail">
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 <h3>构造器详细资料</h3>
 <a name="SqlFilterOperator--">
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 <h4>SqlFilterOperator</h4>
 <pre>public&nbsp;SqlFilterOperator()</pre>
 </li>
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 <!-- ============ METHOD DETAIL ========== -->
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 </a>
 <h3>方法详细资料</h3>
 <a name="unparse-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlCall-int-int-">
 <!--   -->
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 <h4>unparse</h4>
 <pre>public&nbsp;void&nbsp;unparse(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a>&nbsp;writer,
                     <a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a>&nbsp;call,
                     int&nbsp;leftPrec,
                     int&nbsp;rightPrec)</pre>
 <div class="block"><span class="descfrmTypeLabel">从类复制的说明:&nbsp;<code><a href="../../../../org/apache/calcite/sql/SqlOperator.html#unparse-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlCall-int-int-">SqlOperator</a></code></span></div>
 <div class="block">Writes a SQL representation of a call to this operator to a writer,
  including parentheses if the operators on either side are of greater
  precedence.

  <p>The default implementation of this method delegates to
  <a href="../../../../org/apache/calcite/sql/SqlSyntax.html#unparse-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlOperator-org.apache.calcite.sql.SqlCall-int-int-"><code>SqlSyntax.unparse(org.apache.calcite.sql.SqlWriter, org.apache.calcite.sql.SqlOperator, org.apache.calcite.sql.SqlCall, int, int)</code></a>.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">覆盖:</span></dt>
 <dd><code><a href="../../../../org/apache/calcite/sql/SqlOperator.html#unparse-org.apache.calcite.sql.SqlWriter-org.apache.calcite.sql.SqlCall-int-int-">unparse</a></code>&nbsp;在类中&nbsp;<code><a href="../../../../org/apache/calcite/sql/SqlOperator.html" title="org.apache.calcite.sql中的类">SqlOperator</a></code></dd>
 </dl>
 </li>
 </ul>
 <a name="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>public&nbsp;void&nbsp;validateCall(<a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a>&nbsp;call,
                          <a href="../../../../org/apache/calcite/sql/validate/SqlValidator.html" title="org.apache.calcite.sql.validate中的接口">SqlValidator</a>&nbsp;validator,
                          <a href="../../../../org/apache/calcite/sql/validate/SqlValidatorScope.html" title="org.apache.calcite.sql.validate中的接口">SqlValidatorScope</a>&nbsp;scope,
                          <a href="../../../../org/apache/calcite/sql/validate/SqlValidatorScope.html" title="org.apache.calcite.sql.validate中的接口">SqlValidatorScope</a>&nbsp;operandScope)</pre>
 <div class="block"><span class="descfrmTypeLabel">从类复制的说明:&nbsp;<code><a href="../../../../org/apache/calcite/sql/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="../../../../org/apache/calcite/sql/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="../../../../org/apache/calcite/sql/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="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类"><code>SqlCall</code></a> never call this method.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">覆盖:</span></dt>
 <dd><code><a href="../../../../org/apache/calcite/sql/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;在类中&nbsp;<code><a href="../../../../org/apache/calcite/sql/SqlOperator.html" title="org.apache.calcite.sql中的类">SqlOperator</a></code></dd>
 <dt><span class="paramLabel">参数:</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">另请参阅:</span></dt>
 <dd><a href="../../../../org/apache/calcite/sql/SqlNode.html#validateExpr-org.apache.calcite.sql.validate.SqlValidator-org.apache.calcite.sql.validate.SqlValidatorScope-"><code>SqlNode.validateExpr(SqlValidator, SqlValidatorScope)</code></a>,
 <a href="../../../../org/apache/calcite/sql/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 name="deriveType-org.apache.calcite.sql.validate.SqlValidator-org.apache.calcite.sql.validate.SqlValidatorScope-org.apache.calcite.sql.SqlCall-">
 <!--   -->
 </a>
 <ul class="blockListLast">
 <li class="blockList">
 <h4>deriveType</h4>
 <pre>public&nbsp;<a href="../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a>&nbsp;deriveType(<a href="../../../../org/apache/calcite/sql/validate/SqlValidator.html" title="org.apache.calcite.sql.validate中的接口">SqlValidator</a>&nbsp;validator,
                               <a href="../../../../org/apache/calcite/sql/validate/SqlValidatorScope.html" title="org.apache.calcite.sql.validate中的接口">SqlValidatorScope</a>&nbsp;scope,
                               <a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a>&nbsp;call)</pre>
 <div class="block"><span class="descfrmTypeLabel">从类复制的说明:&nbsp;<code><a href="../../../../org/apache/calcite/sql/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="../../../../org/apache/calcite/sql/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">覆盖:</span></dt>
 <dd><code><a href="../../../../org/apache/calcite/sql/SqlBinaryOperator.html#deriveType-org.apache.calcite.sql.validate.SqlValidator-org.apache.calcite.sql.validate.SqlValidatorScope-org.apache.calcite.sql.SqlCall-">deriveType</a></code>&nbsp;在类中&nbsp;<code><a href="../../../../org/apache/calcite/sql/SqlBinaryOperator.html" title="org.apache.calcite.sql中的类">SqlBinaryOperator</a></code></dd>
 <dt><span class="paramLabel">参数:</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">返回:</span></dt>
 <dd>Type of call</dd>
 </dl>
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