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| <h2 title="Class ProjectToWindowRule.WindowedAggRelSplitter" class="title">Class ProjectToWindowRule.WindowedAggRelSplitter</h2> |
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| <li>java.lang.Object</li> |
| <li> |
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| <li><a href="CalcRelSplitter.html" title="class in org.apache.calcite.rel.rules">org.apache.calcite.rel.rules.CalcRelSplitter</a></li> |
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| <li>org.apache.calcite.rel.rules.ProjectToWindowRule.WindowedAggRelSplitter</li> |
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| <pre>static class <span class="typeNameLabel">ProjectToWindowRule.WindowedAggRelSplitter</span> |
| extends <a href="CalcRelSplitter.html" title="class in org.apache.calcite.rel.rules">CalcRelSplitter</a></pre> |
| <div class="block">Splitter that distinguishes between windowed aggregation expressions |
| (calls to <a href="../../rex/RexOver.html" title="class in org.apache.calcite.rex"><code>RexOver</code></a>) and ordinary expressions.</div> |
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| <h3>Nested classes/interfaces inherited from class org.apache.calcite.rel.rules.<a href="CalcRelSplitter.html" title="class in org.apache.calcite.rel.rules">CalcRelSplitter</a></h3> |
| <code><a href="CalcRelSplitter.RelType.html" title="class in org.apache.calcite.rel.rules">CalcRelSplitter.RelType</a></code></li> |
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| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private static <a href="CalcRelSplitter.RelType.html" title="class in org.apache.calcite.rel.rules">CalcRelSplitter.RelType</a>[]</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#REL_TYPES">REL_TYPES</a></span></code></th> |
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| <h3>Fields inherited from class org.apache.calcite.rel.rules.<a href="CalcRelSplitter.html" title="class in org.apache.calcite.rel.rules">CalcRelSplitter</a></h3> |
| <code><a href="CalcRelSplitter.html#program">program</a>, <a href="CalcRelSplitter.html#relBuilder">relBuilder</a></code></li> |
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| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.rel.core.Calc,org.apache.calcite.tools.RelBuilder)">WindowedAggRelSplitter</a></span>​(<a href="../core/Calc.html" title="class in org.apache.calcite.rel.core">Calc</a> calc, |
| <a href="../../tools/RelBuilder.html" title="class in org.apache.calcite.tools">RelBuilder</a> relBuilder)</code></th> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>private <a href="../../util/graph/DirectedGraph.html" title="interface in org.apache.calcite.util.graph">DirectedGraph</a><java.lang.Integer,​<a href="../../util/graph/DefaultEdge.html" title="class in org.apache.calcite.util.graph">DefaultEdge</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createGraphFromExpression(java.util.List)">createGraphFromExpression</a></span>​(java.util.List<<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> exprs)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>protected java.util.List<java.util.Set<java.lang.Integer>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCohorts()">getCohorts</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a list of sets of expressions that should be on the same level.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>private java.util.List<java.lang.Integer></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRank(org.apache.calcite.util.graph.DirectedGraph)">getRank</a></span>​(<a href="../../util/graph/DirectedGraph.html" title="interface in org.apache.calcite.util.graph">DirectedGraph</a><java.lang.Integer,​<a href="../../util/graph/DefaultEdge.html" title="class in org.apache.calcite.util.graph">DefaultEdge</a>> graph)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>private boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isDependent(org.apache.calcite.util.graph.DirectedGraph,java.util.List,int,int)">isDependent</a></span>​(<a href="../../util/graph/DirectedGraph.html" title="interface in org.apache.calcite.util.graph">DirectedGraph</a><java.lang.Integer,​<a href="../../util/graph/DefaultEdge.html" title="class in org.apache.calcite.util.graph">DefaultEdge</a>> graph, |
| java.util.List<java.lang.Integer> rank, |
| int ordinal1, |
| int ordinal2)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
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| <li class="blockList"><a id="methods.inherited.from.class.org.apache.calcite.rel.rules.CalcRelSplitter"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.calcite.rel.rules.<a href="CalcRelSplitter.html" title="class in org.apache.calcite.rel.rules">CalcRelSplitter</a></h3> |
| <code><a href="CalcRelSplitter.html#canImplement(org.apache.calcite.rel.logical.LogicalCalc,java.lang.String)">canImplement</a>, <a href="CalcRelSplitter.html#execute()">execute</a>, <a href="CalcRelSplitter.html#handle(org.apache.calcite.rel.RelNode)">handle</a></code></li> |
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| <h4>REL_TYPES</h4> |
| <pre>private static final <a href="CalcRelSplitter.RelType.html" title="class in org.apache.calcite.rel.rules">CalcRelSplitter.RelType</a>[] REL_TYPES</pre> |
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| <h4>WindowedAggRelSplitter</h4> |
| <pre>WindowedAggRelSplitter​(<a href="../core/Calc.html" title="class in org.apache.calcite.rel.core">Calc</a> calc, |
| <a href="../../tools/RelBuilder.html" title="class in org.apache.calcite.tools">RelBuilder</a> relBuilder)</pre> |
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| <h4>getCohorts</h4> |
| <pre class="methodSignature">protected java.util.List<java.util.Set<java.lang.Integer>> getCohorts()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="CalcRelSplitter.html#getCohorts()">CalcRelSplitter</a></code></span></div> |
| <div class="block">Returns a list of sets of expressions that should be on the same level. |
| |
| <p>For example, if this method returns { {3, 5}, {4, 7} }, it means that |
| expressions 3 and 5, should be on the same level, and expressions 4 and 7 |
| should be on the same level. The two cohorts do not need to be on the |
| same level. |
| |
| <p>The list is best effort. If it is not possible to arrange that the |
| expressions in a cohort are on the same level, the <a href="CalcRelSplitter.html#execute()"><code>CalcRelSplitter.execute()</code></a> |
| method will still succeed. |
| |
| <p>The default implementation of this method returns the empty list; |
| expressions will be put on the most suitable level. This is generally |
| the lowest possible level, except for literals, which are placed at the |
| level where they are used.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="CalcRelSplitter.html#getCohorts()">getCohorts</a></code> in class <code><a href="CalcRelSplitter.html" title="class in org.apache.calcite.rel.rules">CalcRelSplitter</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>List of cohorts, that is sets of expressions, that the splitting |
| algorithm should attempt to place on the same level</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="isDependent(org.apache.calcite.util.graph.DirectedGraph,java.util.List,int,int)"> |
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| <h4>isDependent</h4> |
| <pre class="methodSignature">private boolean isDependent​(<a href="../../util/graph/DirectedGraph.html" title="interface in org.apache.calcite.util.graph">DirectedGraph</a><java.lang.Integer,​<a href="../../util/graph/DefaultEdge.html" title="class in org.apache.calcite.util.graph">DefaultEdge</a>> graph, |
| java.util.List<java.lang.Integer> rank, |
| int ordinal1, |
| int ordinal2)</pre> |
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| <h4>getRank</h4> |
| <pre class="methodSignature">private java.util.List<java.lang.Integer> getRank​(<a href="../../util/graph/DirectedGraph.html" title="interface in org.apache.calcite.util.graph">DirectedGraph</a><java.lang.Integer,​<a href="../../util/graph/DefaultEdge.html" title="class in org.apache.calcite.util.graph">DefaultEdge</a>> graph)</pre> |
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| <h4>createGraphFromExpression</h4> |
| <pre class="methodSignature">private <a href="../../util/graph/DirectedGraph.html" title="interface in org.apache.calcite.util.graph">DirectedGraph</a><java.lang.Integer,​<a href="../../util/graph/DefaultEdge.html" title="class in org.apache.calcite.util.graph">DefaultEdge</a>> createGraphFromExpression​(java.util.List<<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> exprs)</pre> |
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