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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.iceberg</a></div> |
| <h2 title="Interface DeletedRowsScanTask" class="title">Interface DeletedRowsScanTask</h2> |
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| <dt>All Superinterfaces:</dt> |
| <dd><code><a href="ChangelogScanTask.html" title="interface in org.apache.iceberg">ChangelogScanTask</a></code>, <code><a href="ContentScanTask.html" title="interface in org.apache.iceberg">ContentScanTask</a><<a href="DataFile.html" title="interface in org.apache.iceberg">DataFile</a>></code>, <code><a href="PartitionScanTask.html" title="interface in org.apache.iceberg">PartitionScanTask</a></code>, <code><a href="ScanTask.html" title="interface in org.apache.iceberg">ScanTask</a></code>, <code>java.io.Serializable</code></dd> |
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| <pre>public interface <span class="typeNameLabel">DeletedRowsScanTask</span> |
| extends <a href="ChangelogScanTask.html" title="interface in org.apache.iceberg">ChangelogScanTask</a>, <a href="ContentScanTask.html" title="interface in org.apache.iceberg">ContentScanTask</a><<a href="DataFile.html" title="interface in org.apache.iceberg">DataFile</a>></pre> |
| <div class="block">A scan task for deletes generated by adding delete files to the table. |
| |
| <p>Suppose snapshot S1 contains data files F1, F2, F3. Then snapshot S2 adds a position delete |
| file, D1, that deletes records from F2 and snapshot S3 adds an equality delete file, D2, that |
| removes records from F1, F2, F3. A scan for changes from S2 to S3 (inclusive) should include the |
| following tasks: |
| |
| <ul> |
| <li>DeletedRowsScanTask(file=F2, added-deletes=[D1], existing-deletes=[], snapshot=S2) |
| <li>DeletedRowsScanTask(file=F1, added-deletes=[D2], existing-deletes=[], snapshot=S3) |
| <li>DeletedRowsScanTask(file=F2, added-deletes=[D2], existing-deletes=[D1], snapshot=S3) |
| <li>DeletedRowsScanTask(file=F3, added-deletes=[D2], existing-deletes=[], snapshot=S3) |
| </ul> |
| |
| <p>Readers consuming these tasks should produce deleted records with metadata like change ordinal |
| and commit snapshot ID.</div> |
| </li> |
| </ul> |
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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>java.util.List<<a href="DeleteFile.html" title="interface in org.apache.iceberg">DeleteFile</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#addedDeletes()">addedDeletes</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">A list of added <a href="DeleteFile.html" title="interface in org.apache.iceberg"><code>delete files</code></a> that apply to the task's data file.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>java.util.List<<a href="DeleteFile.html" title="interface in org.apache.iceberg">DeleteFile</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#existingDeletes()">existingDeletes</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">A list of <a href="DeleteFile.html" title="interface in org.apache.iceberg"><code>delete files</code></a> that existed before and must be applied prior to |
| determining which records are deleted by delete files in <a href="#addedDeletes()"><code>addedDeletes()</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>default int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#filesCount()">filesCount</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">The number of files that will be opened by this scan task.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>default <a href="ChangelogOperation.html" title="enum in org.apache.iceberg">ChangelogOperation</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#operation()">operation</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the type of changes produced by this task (i.e.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>default long</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#sizeBytes()">sizeBytes</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">The number of bytes that should be read by this scan task.</div> |
| </td> |
| </tr> |
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| </a> |
| <h3>Methods inherited from interface org.apache.iceberg.<a href="ChangelogScanTask.html" title="interface in org.apache.iceberg">ChangelogScanTask</a></h3> |
| <code><a href="ChangelogScanTask.html#changeOrdinal()">changeOrdinal</a>, <a href="ChangelogScanTask.html#commitSnapshotId()">commitSnapshotId</a></code></li> |
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| <h3>Methods inherited from interface org.apache.iceberg.<a href="ContentScanTask.html" title="interface in org.apache.iceberg">ContentScanTask</a></h3> |
| <code><a href="ContentScanTask.html#estimatedRowsCount()">estimatedRowsCount</a>, <a href="ContentScanTask.html#file()">file</a>, <a href="ContentScanTask.html#length()">length</a>, <a href="ContentScanTask.html#partition()">partition</a>, <a href="ContentScanTask.html#residual()">residual</a>, <a href="ContentScanTask.html#start()">start</a></code></li> |
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| <h3>Methods inherited from interface org.apache.iceberg.<a href="PartitionScanTask.html" title="interface in org.apache.iceberg">PartitionScanTask</a></h3> |
| <code><a href="PartitionScanTask.html#spec()">spec</a></code></li> |
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| <h3>Methods inherited from interface org.apache.iceberg.<a href="ScanTask.html" title="interface in org.apache.iceberg">ScanTask</a></h3> |
| <code><a href="ScanTask.html#asCombinedScanTask()">asCombinedScanTask</a>, <a href="ScanTask.html#asDataTask()">asDataTask</a>, <a href="ScanTask.html#asFileScanTask()">asFileScanTask</a>, <a href="ScanTask.html#isDataTask()">isDataTask</a>, <a href="ScanTask.html#isFileScanTask()">isFileScanTask</a></code></li> |
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| <a id="addedDeletes()"> |
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| <h4>addedDeletes</h4> |
| <pre class="methodSignature">java.util.List<<a href="DeleteFile.html" title="interface in org.apache.iceberg">DeleteFile</a>> addedDeletes()</pre> |
| <div class="block">A list of added <a href="DeleteFile.html" title="interface in org.apache.iceberg"><code>delete files</code></a> that apply to the task's data file. Records |
| removed by these delete files should appear as deletes in the changelog.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a list of added delete files</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="existingDeletes()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>existingDeletes</h4> |
| <pre class="methodSignature">java.util.List<<a href="DeleteFile.html" title="interface in org.apache.iceberg">DeleteFile</a>> existingDeletes()</pre> |
| <div class="block">A list of <a href="DeleteFile.html" title="interface in org.apache.iceberg"><code>delete files</code></a> that existed before and must be applied prior to |
| determining which records are deleted by delete files in <a href="#addedDeletes()"><code>addedDeletes()</code></a>. Records |
| removed by these delete files should not appear in the changelog.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a list of existing delete files</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="operation()"> |
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| <h4>operation</h4> |
| <pre class="methodSignature">default <a href="ChangelogOperation.html" title="enum in org.apache.iceberg">ChangelogOperation</a> operation()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="ChangelogScanTask.html#operation()">ChangelogScanTask</a></code></span></div> |
| <div class="block">Returns the type of changes produced by this task (i.e. insert/delete).</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="ChangelogScanTask.html#operation()">operation</a></code> in interface <code><a href="ChangelogScanTask.html" title="interface in org.apache.iceberg">ChangelogScanTask</a></code></dd> |
| </dl> |
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| <h4>sizeBytes</h4> |
| <pre class="methodSignature">default long sizeBytes()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="ScanTask.html#sizeBytes()">ScanTask</a></code></span></div> |
| <div class="block">The number of bytes that should be read by this scan task.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="ContentScanTask.html#sizeBytes()">sizeBytes</a></code> in interface <code><a href="ContentScanTask.html" title="interface in org.apache.iceberg">ContentScanTask</a><<a href="DataFile.html" title="interface in org.apache.iceberg">DataFile</a>></code></dd> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="ScanTask.html#sizeBytes()">sizeBytes</a></code> in interface <code><a href="ScanTask.html" title="interface in org.apache.iceberg">ScanTask</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the total number of bytes to read</dd> |
| </dl> |
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| <h4>filesCount</h4> |
| <pre class="methodSignature">default int filesCount()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="ScanTask.html#filesCount()">ScanTask</a></code></span></div> |
| <div class="block">The number of files that will be opened by this scan task.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="ScanTask.html#filesCount()">filesCount</a></code> in interface <code><a href="ScanTask.html" title="interface in org.apache.iceberg">ScanTask</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the number of files to open</dd> |
| </dl> |
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