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| <li>java.lang.Object</li> |
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| <li><a href="SqlSplittableAggFunction.AbstractSumSplitter.html" title="class in org.apache.calcite.sql">org.apache.calcite.sql.SqlSplittableAggFunction.AbstractSumSplitter</a></li> |
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| <li>org.apache.calcite.sql.SqlSplittableAggFunction.Sum0Splitter</li> |
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| <dd><a href="SqlSplittableAggFunction.html" title="interface in org.apache.calcite.sql">SqlSplittableAggFunction</a></dd> |
| </dl> |
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| <pre>public static class <span class="typeNameLabel">SqlSplittableAggFunction.Sum0Splitter</span> |
| extends <a href="SqlSplittableAggFunction.AbstractSumSplitter.html" title="class in org.apache.calcite.sql">SqlSplittableAggFunction.AbstractSumSplitter</a></pre> |
| <div class="block">Splitting strategy for <code>SUM0</code> function.</div> |
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| <code><a href="SqlSplittableAggFunction.AbstractSumSplitter.html" title="class in org.apache.calcite.sql">SqlSplittableAggFunction.AbstractSumSplitter</a>, <a href="SqlSplittableAggFunction.CountSplitter.html" title="class in org.apache.calcite.sql">SqlSplittableAggFunction.CountSplitter</a>, <a href="SqlSplittableAggFunction.Registry.html" title="interface in org.apache.calcite.sql">SqlSplittableAggFunction.Registry</a><<a href="SqlSplittableAggFunction.Registry.html" title="type parameter in SqlSplittableAggFunction.Registry">E</a>>, <a href="SqlSplittableAggFunction.SelfSplitter.html" title="class in org.apache.calcite.sql">SqlSplittableAggFunction.SelfSplitter</a>, <a href="SqlSplittableAggFunction.Sum0Splitter.html" title="class in org.apache.calcite.sql">SqlSplittableAggFunction.Sum0Splitter</a>, <a href="SqlSplittableAggFunction.SumSplitter.html" title="class in org.apache.calcite.sql">SqlSplittableAggFunction.SumSplitter</a></code></li> |
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| <td class="colFirst"><code>static <a href="SqlSplittableAggFunction.Sum0Splitter.html" title="class in org.apache.calcite.sql">SqlSplittableAggFunction.Sum0Splitter</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE">INSTANCE</a></span></code></th> |
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| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">Sum0Splitter</a></span>()</code></th> |
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| <td class="colFirst"><code><a href="SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMergeAggFunctionOfTopSplit()">getMergeAggFunctionOfTopSplit</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#singleton(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.core.AggregateCall)">singleton</a></span>​(<a href="../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> inputRowType, |
| <a href="../rel/core/AggregateCall.html" title="class in org.apache.calcite.rel.core">AggregateCall</a> aggregateCall)</code></th> |
| <td class="colLast"> |
| <div class="block">Generates an expression for the value of the aggregate function when |
| applied to a single row.</div> |
| </td> |
| </tr> |
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| <h3>Methods inherited from class org.apache.calcite.sql.<a href="SqlSplittableAggFunction.AbstractSumSplitter.html" title="class in org.apache.calcite.sql">SqlSplittableAggFunction.AbstractSumSplitter</a></h3> |
| <code><a href="SqlSplittableAggFunction.AbstractSumSplitter.html#merge(org.apache.calcite.rel.core.AggregateCall,org.apache.calcite.rel.core.AggregateCall)">merge</a>, <a href="SqlSplittableAggFunction.AbstractSumSplitter.html#other(org.apache.calcite.rel.type.RelDataTypeFactory,org.apache.calcite.rel.core.AggregateCall)">other</a>, <a href="SqlSplittableAggFunction.AbstractSumSplitter.html#split(org.apache.calcite.rel.core.AggregateCall,org.apache.calcite.util.mapping.Mappings.TargetMapping)">split</a>, <a href="SqlSplittableAggFunction.AbstractSumSplitter.html#topSplit(org.apache.calcite.rex.RexBuilder,org.apache.calcite.sql.SqlSplittableAggFunction.Registry,int,org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.core.AggregateCall,int,int)">topSplit</a></code></li> |
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| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
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| <h4>INSTANCE</h4> |
| <pre>public static final <a href="SqlSplittableAggFunction.Sum0Splitter.html" title="class in org.apache.calcite.sql">SqlSplittableAggFunction.Sum0Splitter</a> INSTANCE</pre> |
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| <h4>Sum0Splitter</h4> |
| <pre>public Sum0Splitter()</pre> |
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| <h4>getMergeAggFunctionOfTopSplit</h4> |
| <pre class="methodSignature">public <a href="SqlAggFunction.html" title="class in org.apache.calcite.sql">SqlAggFunction</a> getMergeAggFunctionOfTopSplit()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="SqlSplittableAggFunction.AbstractSumSplitter.html#getMergeAggFunctionOfTopSplit()">getMergeAggFunctionOfTopSplit</a></code> in class <code><a href="SqlSplittableAggFunction.AbstractSumSplitter.html" title="class in org.apache.calcite.sql">SqlSplittableAggFunction.AbstractSumSplitter</a></code></dd> |
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| </li> |
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| <a id="singleton(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.core.AggregateCall)"> |
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| <h4>singleton</h4> |
| <pre class="methodSignature">public <a href="../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> singleton​(<a href="../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> inputRowType, |
| <a href="../rel/core/AggregateCall.html" title="class in org.apache.calcite.rel.core">AggregateCall</a> aggregateCall)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="SqlSplittableAggFunction.html#singleton(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.core.AggregateCall)">SqlSplittableAggFunction</a></code></span></div> |
| <div class="block">Generates an expression for the value of the aggregate function when |
| applied to a single row. |
| |
| <p>For example, if there is one row: |
| <ul> |
| <li><code>SUM(x)</code> is <code>x</code> |
| <li><code>MIN(x)</code> is <code>x</code> |
| <li><code>MAX(x)</code> is <code>x</code> |
| <li><code>COUNT(x)</code> is <code>CASE WHEN x IS NOT NULL THEN 1 ELSE 0 END 1</code> |
| which can be simplified to <code>1</code> if <code>x</code> is never null |
| <li><code>COUNT(*)</code> is 1 |
| </ul></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="SqlSplittableAggFunction.html#singleton(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.core.AggregateCall)">singleton</a></code> in interface <code><a href="SqlSplittableAggFunction.html" title="interface in org.apache.calcite.sql">SqlSplittableAggFunction</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="SqlSplittableAggFunction.AbstractSumSplitter.html#singleton(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.core.AggregateCall)">singleton</a></code> in class <code><a href="SqlSplittableAggFunction.AbstractSumSplitter.html" title="class in org.apache.calcite.sql">SqlSplittableAggFunction.AbstractSumSplitter</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rexBuilder</code> - Rex builder</dd> |
| <dd><code>inputRowType</code> - Input row type</dd> |
| <dd><code>aggregateCall</code> - Aggregate call</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Expression for single row</dd> |
| </dl> |
| </li> |
| </ul> |
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