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| <h2 title="Interface AggResultContext" class="title">Interface AggResultContext</h2> |
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| <pre>public interface <span class="typeNameLabel">AggResultContext</span> |
| extends <a href="../../../../../org/apache/calcite/adapter/enumerable/NestedBlockBuilder.html" title="interface in org.apache.calcite.adapter.enumerable">NestedBlockBuilder</a>, <a href="../../../../../org/apache/calcite/adapter/enumerable/AggResetContext.html" title="interface in org.apache.calcite.adapter.enumerable">AggResetContext</a></pre> |
| <div class="block">Information for a call to |
| <a href="../../../../../org/apache/calcite/adapter/enumerable/AggImplementor.html#implementResult-org.apache.calcite.adapter.enumerable.AggContext-org.apache.calcite.adapter.enumerable.AggResultContext-"><code>AggImplementor.implementResult(AggContext, AggResultContext)</code></a> |
| |
| <p>Typically, the aggregation implementation will convert |
| <a href="../../../../../org/apache/calcite/adapter/enumerable/AggResetContext.html#accumulator--"><code>AggResetContext.accumulator()</code></a> to the resulting value of the aggregation. The |
| implementation MUST NOT destroy the contents of <a href="../../../../../org/apache/calcite/adapter/enumerable/AggResetContext.html#accumulator--"><code>AggResetContext.accumulator()</code></a>.</div> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/core/AggregateCall.html" title="class in org.apache.calcite.rel.core">AggregateCall</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/adapter/enumerable/AggResultContext.html#call--">call</a></span>()</code> </td> |
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| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/adapter/enumerable/AggResultContext.html#key--">key</a></span>()</code> |
| <div class="block">Expression by which to reference the key upon which the values in the |
| accumulator were aggregated.</div> |
| </td> |
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| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/adapter/enumerable/AggResultContext.html#keyField-int-">keyField</a></span>(int i)</code> |
| <div class="block">Returns an expression that references the <code>i</code>th field of the key, |
| cast to the appropriate type.</div> |
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| <code><a href="../../../../../org/apache/calcite/adapter/enumerable/AggResetContext.html#accumulator--">accumulator</a></code></li> |
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| <code><a href="../../../../../org/apache/calcite/adapter/enumerable/NestedBlockBuilder.html#currentBlock--">currentBlock</a>, <a href="../../../../../org/apache/calcite/adapter/enumerable/NestedBlockBuilder.html#exitBlock--">exitBlock</a>, <a href="../../../../../org/apache/calcite/adapter/enumerable/NestedBlockBuilder.html#nestBlock--">nestBlock</a>, <a href="../../../../../org/apache/calcite/adapter/enumerable/NestedBlockBuilder.html#nestBlock-org.apache.calcite.linq4j.tree.BlockBuilder-">nestBlock</a></code></li> |
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| <h4>key</h4> |
| <pre><a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> key()</pre> |
| <div class="block">Expression by which to reference the key upon which the values in the |
| accumulator were aggregated. Most aggregate functions depend on only the |
| accumulator, but quasi-aggregate functions such as GROUPING access at the |
| key.</div> |
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| <h4>keyField</h4> |
| <pre><a href="../../../../../org/apache/calcite/linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> keyField(int i)</pre> |
| <div class="block">Returns an expression that references the <code>i</code>th field of the key, |
| cast to the appropriate type.</div> |
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| <h4>call</h4> |
| <pre><a href="../../../../../org/apache/calcite/rel/core/AggregateCall.html" title="class in org.apache.calcite.rel.core">AggregateCall</a> call()</pre> |
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