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 <div class="subTitle">org.apache.calcite.sql.validate</div>
 <h2 title="类 SqlUserDefinedAggFunction" class="title">类 SqlUserDefinedAggFunction</h2>
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 <li>
 <ul class="inheritance">
 <li><a href="../../../../../org/apache/calcite/sql/SqlOperator.html" title="org.apache.calcite.sql中的类">org.apache.calcite.sql.SqlOperator</a></li>
 <li>
 <ul class="inheritance">
 <li><a href="../../../../../org/apache/calcite/sql/SqlFunction.html" title="org.apache.calcite.sql中的类">org.apache.calcite.sql.SqlFunction</a></li>
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 <li><a href="../../../../../org/apache/calcite/sql/SqlAggFunction.html" title="org.apache.calcite.sql中的类">org.apache.calcite.sql.SqlAggFunction</a></li>
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 <li>org.apache.calcite.sql.validate.SqlUserDefinedAggFunction</li>
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 <dt>所有已实现的接口:</dt>
 <dd><a href="../../../../../org/apache/calcite/plan/Context.html" title="org.apache.calcite.plan中的接口">Context</a>, <a href="../../../../../org/apache/calcite/schema/Wrapper.html" title="org.apache.calcite.schema中的接口">Wrapper</a></dd>
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 <pre>public class <span class="typeNameLabel">SqlUserDefinedAggFunction</span>
 extends <a href="../../../../../org/apache/calcite/sql/SqlAggFunction.html" title="org.apache.calcite.sql中的类">SqlAggFunction</a></pre>
 <div class="block">User-defined aggregate function.

  <p>Created by the validator, after resolving a function call to a function
  defined in a Calcite schema.</p></div>
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 <tr>
 <th class="colFirst" scope="col">限定符和类型</th>
 <th class="colLast" scope="col">字段和说明</th>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/calcite/schema/AggregateFunction.html" title="org.apache.calcite.schema中的接口">AggregateFunction</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/validate/SqlUserDefinedAggFunction.html#function">function</a></span></code>&nbsp;</td>
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 <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html" title="org.apache.calcite.rel.type中的接口">RelDataTypeFactory</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/validate/SqlUserDefinedAggFunction.html#typeFactory">typeFactory</a></span></code>
 <div class="block">This field is is technical debt; see [CALCITE-2082] Remove
  RelDataTypeFactory argument from SqlUserDefinedAggFunction constructor.</div>
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                          <a href="../../../../../org/apache/calcite/sql/type/SqlReturnTypeInference.html" title="org.apache.calcite.sql.type中的接口">SqlReturnTypeInference</a>&nbsp;returnTypeInference,
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 <div class="block">Creates a SqlUserDefinedAggFunction.</div>
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 <th class="colFirst" scope="col">限定符和类型</th>
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 <pre>public&nbsp;SqlUserDefinedAggFunction(<a href="../../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a>&nbsp;opName,
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