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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.rel.core</a></div> |
| <h1 title="Class Window.Group" class="title">Class Window.Group</h1> |
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| <div class="inheritance">org.apache.calcite.rel.core.Window.Group</div> |
| </div> |
| <section class="description"> |
| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="Window.html" title="class in org.apache.calcite.rel.core">Window</a></dd> |
| </dl> |
| <hr> |
| <pre>public static class <span class="typeNameLabel">Window.Group</span> |
| extends <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></pre> |
| <div class="block">Group of windowed aggregate calls that have the same window specification. |
| |
| <p>The specification is defined by an upper and lower bound, and |
| also has zero or more partitioning columns. |
| |
| <p>A window is either logical or physical. A physical window is measured |
| in terms of row count. A logical window is measured in terms of rows |
| within a certain distance from the current sort key. |
| |
| <p>For example: |
| |
| <ul> |
| <li><code>ROWS BETWEEN 10 PRECEDING and 5 FOLLOWING</code> is a physical |
| window with an upper and lower bound; |
| <li><code>RANGE BETWEEN INTERVAL '1' HOUR PRECEDING AND UNBOUNDED |
| FOLLOWING</code> is a logical window with only a lower bound; |
| <li><code>RANGE INTERVAL '10' MINUTES PRECEDING</code> (which is |
| equivalent to <code>RANGE BETWEEN INTERVAL '10' MINUTES PRECEDING AND |
| CURRENT ROW</code>) is a logical window with an upper and lower bound. |
| </ul></div> |
| </section> |
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| <h2>Field Summary</h2> |
| <div class="memberSummary"> |
| <table> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <thead> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Field</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code>com.google.common.collect.ImmutableList<<a href="Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core">Window.RexWinAggCall</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#aggCalls">aggCalls</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">List of <a href="Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core"><code>Window.RexWinAggCall</code></a> |
| objects, each of which is a call to a |
| <a href="../../sql/SqlAggFunction.html" title="class in org.apache.calcite.sql"><code>SqlAggFunction</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isRows">isRows</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#keys">keys</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#lowerBound">lowerBound</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../RelCollation.html" title="interface in org.apache.calcite.rel">RelCollation</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#orderKeys">orderKeys</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#upperBound">upperBound</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </section> |
| </li> |
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| <thead> |
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| <th class="colFirst" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.util.ImmutableBitSet,boolean,org.apache.calcite.rex.RexWindowBound,org.apache.calcite.rex.RexWindowBound,org.apache.calcite.rel.RelCollation,java.util.List)">Group</a></span>​(<a href="../../util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> keys, |
| boolean isRows, |
| <a href="../../rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a> lowerBound, |
| <a href="../../rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a> upperBound, |
| <a href="../RelCollation.html" title="interface in org.apache.calcite.rel">RelCollation</a> orderKeys, |
| <a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a><<a href="Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core">Window.RexWinAggCall</a>> aggCalls)</code></th> |
| <td class="colLast"> </td> |
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| <div id="memberSummary_tabpanel" role="tabpanel"> |
| <table aria-labelledby="t0"> |
| <thead> |
| <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> |
| </thead> |
| <tbody> |
| <tr class="altColor" id="i0"> |
| <td class="colFirst"><code><a href="../RelCollation.html" title="interface in org.apache.calcite.rel">RelCollation</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#collation()">collation</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor" id="i1"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#equals(java.lang.Object)">equals</a></span>​(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a> obj)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor" id="i2"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a><<a href="AggregateCall.html" title="class in org.apache.calcite.rel.core">AggregateCall</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getAggregateCalls(org.apache.calcite.rel.core.Window)">getAggregateCalls</a></span>​(<a href="Window.html" title="class in org.apache.calcite.rel.core">Window</a> windowRel)</code></th> |
| <td class="colLast"> |
| <div class="block">Presents a view of the <a href="Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core"><code>Window.RexWinAggCall</code></a> list as a list of |
| <a href="AggregateCall.html" title="class in org.apache.calcite.rel.core"><code>AggregateCall</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i3"> |
| <td class="colFirst"><code>int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hashCode()">hashCode</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor" id="i4"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isAlwaysNonEmpty()">isAlwaysNonEmpty</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns if the window is guaranteed to have rows.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i5"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toString()">toString</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </div> |
| <div class="inheritedList"> |
| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></h3> |
| <a id="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
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| <h3><a id="keys">keys</a></h3> |
| <div class="memberSignature"><span class="modifiers">public final</span> <span class="returnType"><a href="../../util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a></span> <span class="memberName">keys</span></div> |
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| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="isRows">isRows</a></h3> |
| <div class="memberSignature"><span class="modifiers">public final</span> <span class="returnType">boolean</span> <span class="memberName">isRows</span></div> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="lowerBound">lowerBound</a></h3> |
| <div class="memberSignature"><span class="modifiers">public final</span> <span class="returnType"><a href="../../rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a></span> <span class="memberName">lowerBound</span></div> |
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| <h3><a id="upperBound">upperBound</a></h3> |
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| <h3><a id="orderKeys">orderKeys</a></h3> |
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| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="aggCalls">aggCalls</a></h3> |
| <div class="memberSignature"><span class="modifiers">public final</span> <span class="returnType">com.google.common.collect.ImmutableList<<a href="Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core">Window.RexWinAggCall</a>></span> <span class="memberName">aggCalls</span></div> |
| <div class="block">List of <a href="Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core"><code>Window.RexWinAggCall</code></a> |
| objects, each of which is a call to a |
| <a href="../../sql/SqlAggFunction.html" title="class in org.apache.calcite.sql"><code>SqlAggFunction</code></a>.</div> |
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| <h3><a id="<init>(org.apache.calcite.util.ImmutableBitSet,boolean,org.apache.calcite.rex.RexWindowBound,org.apache.calcite.rex.RexWindowBound,org.apache.calcite.rel.RelCollation,java.util.List)">Group</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="memberName">Group</span>​(<span class="arguments"><a href="../../util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> keys, |
| boolean isRows, |
| <a href="../../rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a> lowerBound, |
| <a href="../../rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a> upperBound, |
| <a href="../RelCollation.html" title="interface in org.apache.calcite.rel">RelCollation</a> orderKeys, |
| <a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a><<a href="Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core">Window.RexWinAggCall</a>> aggCalls)</span></div> |
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| <h3><a id="toString()">toString</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></span> <span class="memberName">toString</span>()</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink">toString</a></code> in class <code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></code></dd> |
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| <section class="detail"> |
| <h3><a id="equals(java.lang.Object)">equals</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType">boolean</span> <span class="memberName">equals</span>​(<span class="arguments"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a> obj)</span></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a></code> in class <code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></code></dd> |
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| <section class="detail"> |
| <h3><a id="hashCode()">hashCode</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType">int</span> <span class="memberName">hashCode</span>()</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
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| <h3><a id="collation()">collation</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType"><a href="../RelCollation.html" title="interface in org.apache.calcite.rel">RelCollation</a></span> <span class="memberName">collation</span>()</div> |
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| <h3><a id="isAlwaysNonEmpty()">isAlwaysNonEmpty</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType">boolean</span> <span class="memberName">isAlwaysNonEmpty</span>()</div> |
| <div class="block">Returns if the window is guaranteed to have rows. |
| This is useful to refine data type of window aggregates. |
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| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true when the window is non-empty</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../sql/SqlWindow.html#isAlwaysNonEmpty()"><code>SqlWindow.isAlwaysNonEmpty()</code></a>, |
| <a href="../../sql/SqlOperatorBinding.html#getGroupCount()"><code>SqlOperatorBinding.getGroupCount()</code></a>, |
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| <div class="block">Presents a view of the <a href="Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core"><code>Window.RexWinAggCall</code></a> list as a list of |
| <a href="AggregateCall.html" title="class in org.apache.calcite.rel.core"><code>AggregateCall</code></a>.</div> |
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