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| <div class="subTitle">org.apache.calcite.rel.core</div> |
| <h2 title="Class Window.Group" class="title">Class Window.Group</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.rel.core.Window.Group</li> |
| </ul> |
| </li> |
| </ul> |
| <div class="description"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="../../../../../org/apache/calcite/rel/core/Window.html" title="class in org.apache.calcite.rel.core">Window</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public static class <span class="typeNameLabel">Window.Group</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">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> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- =========== FIELD SUMMARY =========== --> |
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| </a> |
| <h3>Field Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>com.google.common.collect.ImmutableList<<a href="../../../../../org/apache/calcite/rel/core/Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core">Window.RexWinAggCall</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Window.Group.html#aggCalls">aggCalls</a></span></code> |
| <div class="block">List of <a href="../../../../../org/apache/calcite/rel/core/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="../../../../../org/apache/calcite/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> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Window.Group.html#isRows">isRows</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Window.Group.html#keys">keys</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Window.Group.html#lowerBound">lowerBound</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/RelCollation.html" title="interface in org.apache.calcite.rel">RelCollation</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Window.Group.html#orderKeys">orderKeys</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Window.Group.html#upperBound">upperBound</a></span></code> </td> |
| </tr> |
| </table> |
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| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
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| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Window.Group.html#Group-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="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> keys, |
| boolean isRows, |
| <a href="../../../../../org/apache/calcite/rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a> lowerBound, |
| <a href="../../../../../org/apache/calcite/rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a> upperBound, |
| <a href="../../../../../org/apache/calcite/rel/RelCollation.html" title="interface in org.apache.calcite.rel">RelCollation</a> orderKeys, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../org/apache/calcite/rel/core/Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core">Window.RexWinAggCall</a>> aggCalls)</code> </td> |
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| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/RelCollation.html" title="interface in org.apache.calcite.rel">RelCollation</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Window.Group.html#collation--">collation</a></span>()</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Window.Group.html#equals-java.lang.Object-">equals</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> obj)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<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/rel/core/Window.Group.html#getAggregateCalls-org.apache.calcite.rel.core.Window-">getAggregateCalls</a></span>(<a href="../../../../../org/apache/calcite/rel/core/Window.html" title="class in org.apache.calcite.rel.core">Window</a> windowRel)</code> |
| <div class="block">Presents a view of the <a href="../../../../../org/apache/calcite/rel/core/Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core"><code>Window.RexWinAggCall</code></a> list as a list of |
| <a href="../../../../../org/apache/calcite/rel/core/AggregateCall.html" title="class in org.apache.calcite.rel.core"><code>AggregateCall</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Window.Group.html#hashCode--">hashCode</a></span>()</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Window.Group.html#isAlwaysNonEmpty--">isAlwaysNonEmpty</a></span>()</code> |
| <div class="block">Returns if the window is guaranteed to have rows.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Window.Group.html#toString--">toString</a></span>()</code> </td> |
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| </table> |
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| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
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| <li class="blockList"><a name="field.detail"> |
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| <h3>Field Detail</h3> |
| <a name="keys"> |
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| </a> |
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| <h4>keys</h4> |
| <pre>public final <a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> keys</pre> |
| </li> |
| </ul> |
| <a name="isRows"> |
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| </a> |
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| <h4>isRows</h4> |
| <pre>public final boolean isRows</pre> |
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| <a name="lowerBound"> |
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| </a> |
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| <h4>lowerBound</h4> |
| <pre>public final <a href="../../../../../org/apache/calcite/rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a> lowerBound</pre> |
| </li> |
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| <h4>upperBound</h4> |
| <pre>public final <a href="../../../../../org/apache/calcite/rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a> upperBound</pre> |
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| <h4>orderKeys</h4> |
| <pre>public final <a href="../../../../../org/apache/calcite/rel/RelCollation.html" title="interface in org.apache.calcite.rel">RelCollation</a> orderKeys</pre> |
| </li> |
| </ul> |
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| </a> |
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| <h4>aggCalls</h4> |
| <pre>public final com.google.common.collect.ImmutableList<<a href="../../../../../org/apache/calcite/rel/core/Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core">Window.RexWinAggCall</a>> aggCalls</pre> |
| <div class="block">List of <a href="../../../../../org/apache/calcite/rel/core/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="../../../../../org/apache/calcite/sql/SqlAggFunction.html" title="class in org.apache.calcite.sql"><code>SqlAggFunction</code></a>.</div> |
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| <h3>Constructor Detail</h3> |
| <a name="Group-org.apache.calcite.util.ImmutableBitSet-boolean-org.apache.calcite.rex.RexWindowBound-org.apache.calcite.rex.RexWindowBound-org.apache.calcite.rel.RelCollation-java.util.List-"> |
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| <h4>Group</h4> |
| <pre>public Group(<a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> keys, |
| boolean isRows, |
| <a href="../../../../../org/apache/calcite/rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a> lowerBound, |
| <a href="../../../../../org/apache/calcite/rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a> upperBound, |
| <a href="../../../../../org/apache/calcite/rel/RelCollation.html" title="interface in org.apache.calcite.rel">RelCollation</a> orderKeys, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../org/apache/calcite/rel/core/Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core">Window.RexWinAggCall</a>> aggCalls)</pre> |
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| <h4>toString</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> toString()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a></code> in class <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd> |
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| <h4>equals</h4> |
| <pre>public boolean equals(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> obj)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a></code> in class <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd> |
| </dl> |
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| <pre>public int hashCode()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a></code> in class <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd> |
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| <h4>collation</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/rel/RelCollation.html" title="interface in org.apache.calcite.rel">RelCollation</a> collation()</pre> |
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| <h4>isAlwaysNonEmpty</h4> |
| <pre>public boolean isAlwaysNonEmpty()</pre> |
| <div class="block">Returns if the window is guaranteed to have rows. |
| This is useful to refine data type of window aggregates. |
| For instance sum(non-nullable) over (empty window) is NULL.</div> |
| <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="../../../../../org/apache/calcite/sql/SqlWindow.html#isAlwaysNonEmpty--"><code>SqlWindow.isAlwaysNonEmpty()</code></a>, |
| <a href="../../../../../org/apache/calcite/sql/SqlOperatorBinding.html#getGroupCount--"><code>SqlOperatorBinding.getGroupCount()</code></a>, |
| <a href="../../../../../org/apache/calcite/sql/validate/SqlValidatorImpl.html#resolveWindow-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.validate.SqlValidatorScope-"><code>SqlValidatorImpl.resolveWindow(org.apache.calcite.sql.SqlNode, org.apache.calcite.sql.validate.SqlValidatorScope)</code></a></dd> |
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| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../org/apache/calcite/rel/core/AggregateCall.html" title="class in org.apache.calcite.rel.core">AggregateCall</a>> getAggregateCalls(<a href="../../../../../org/apache/calcite/rel/core/Window.html" title="class in org.apache.calcite.rel.core">Window</a> windowRel)</pre> |
| <div class="block">Presents a view of the <a href="../../../../../org/apache/calcite/rel/core/Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core"><code>Window.RexWinAggCall</code></a> list as a list of |
| <a href="../../../../../org/apache/calcite/rel/core/AggregateCall.html" title="class in org.apache.calcite.rel.core"><code>AggregateCall</code></a>.</div> |
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