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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.adapter.enumerable</a></div> |
| <h2 title="Interface WinAggFrameContext" class="title">Interface WinAggFrameContext</h2> |
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| <dt>All Known Subinterfaces:</dt> |
| <dd><code><a href="WinAggAddContext.html" title="interface in org.apache.calcite.adapter.enumerable">WinAggAddContext</a></code>, <code><a href="WinAggFrameResultContext.html" title="interface in org.apache.calcite.adapter.enumerable">WinAggFrameResultContext</a></code>, <code><a href="WinAggResetContext.html" title="interface in org.apache.calcite.adapter.enumerable">WinAggResetContext</a></code>, <code><a href="WinAggResultContext.html" title="interface in org.apache.calcite.adapter.enumerable">WinAggResultContext</a></code></dd> |
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| <dt>All Known Implementing Classes:</dt> |
| <dd><code><a href="impl/WinAggAddContextImpl.html" title="class in org.apache.calcite.adapter.enumerable.impl">WinAggAddContextImpl</a></code>, <code><a href="impl/WinAggResetContextImpl.html" title="class in org.apache.calcite.adapter.enumerable.impl">WinAggResetContextImpl</a></code>, <code><a href="impl/WinAggResultContextImpl.html" title="class in org.apache.calcite.adapter.enumerable.impl">WinAggResultContextImpl</a></code></dd> |
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| <pre>public interface <span class="typeNameLabel">WinAggFrameContext</span></pre> |
| <div class="block">Provides information on the current window. |
| |
| <p>All the indexes are ready to be used in |
| <a href="WinAggResultContext.html#arguments(org.apache.calcite.linq4j.tree.Expression)"><code>WinAggResultContext.arguments(org.apache.calcite.linq4j.tree.Expression)</code></a>, |
| <a href="WinAggFrameResultContext.html#rowTranslator(org.apache.calcite.linq4j.tree.Expression)"><code>WinAggFrameResultContext.rowTranslator(org.apache.calcite.linq4j.tree.Expression)</code></a> |
| and similar methods.</div> |
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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><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#endIndex()">endIndex</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the index of the very last row in partition.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getFrameRowCount()">getFrameRowCount</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the number of rows in the current frame (subject to framing |
| clause).</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getPartitionRowCount()">getPartitionRowCount</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the number of rows in the current partition (as determined by |
| PARTITION BY clause).</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hasRows()">hasRows</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the boolean expression that tells if the partition has rows.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#index()">index</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the index of the current row in the partition.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#startIndex()">startIndex</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the index of the very first row in partition.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
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| </section> |
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| <h4>index</h4> |
| <pre class="methodSignature"><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> index()</pre> |
| <div class="block">Returns the index of the current row in the partition. |
| In other words, it is close to ~ROWS BETWEEN CURRENT ROW. |
| Note to use <a href="#startIndex()"><code>startIndex()</code></a> when you need zero-based row position.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the index of the very first row in partition</dd> |
| </dl> |
| </li> |
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| <h4>startIndex</h4> |
| <pre class="methodSignature"><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> startIndex()</pre> |
| <div class="block">Returns the index of the very first row in partition.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>index of the very first row in partition</dd> |
| </dl> |
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| <h4>endIndex</h4> |
| <pre class="methodSignature"><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> endIndex()</pre> |
| <div class="block">Returns the index of the very last row in partition.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>index of the very last row in partition</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="hasRows()"> |
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| <h4>hasRows</h4> |
| <pre class="methodSignature"><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> hasRows()</pre> |
| <div class="block">Returns the boolean expression that tells if the partition has rows. |
| The partition might lack rows in cases like ROWS BETWEEN 1000 PRECEDING |
| AND 900 PRECEDING.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>boolean expression that tells if the partition has rows</dd> |
| </dl> |
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| <h4>getFrameRowCount</h4> |
| <pre class="methodSignature"><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> getFrameRowCount()</pre> |
| <div class="block">Returns the number of rows in the current frame (subject to framing |
| clause).</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>number of rows in the current partition or 0 if the partition |
| is empty</dd> |
| </dl> |
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| </ul> |
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| <h4>getPartitionRowCount</h4> |
| <pre class="methodSignature"><a href="../../linq4j/tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> getPartitionRowCount()</pre> |
| <div class="block">Returns the number of rows in the current partition (as determined by |
| PARTITION BY clause).</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>number of rows in the current partition or 0 if the partition |
| is empty</dd> |
| </dl> |
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