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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 SplittableScanTask" class="title">Interface SplittableScanTask<ThisT></h2> |
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| <dd><code><a href="ScanTask.html" title="interface in org.apache.iceberg">ScanTask</a></code>, <code>java.io.Serializable</code></dd> |
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| <dd><code><a href="DataTask.html" title="interface in org.apache.iceberg">DataTask</a></code>, <code><a href="FileScanTask.html" title="interface in org.apache.iceberg">FileScanTask</a></code></dd> |
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| <pre>public interface <span class="typeNameLabel">SplittableScanTask<ThisT></span> |
| extends <a href="ScanTask.html" title="interface in org.apache.iceberg">ScanTask</a></pre> |
| <div class="block">A scan task that can be split into smaller scan tasks.</div> |
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| <td class="colFirst"><code>java.lang.Iterable<<a href="SplittableScanTask.html" title="type parameter in SplittableScanTask">ThisT</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#split(long)">split</a></span>​(long targetSplitSize)</code></th> |
| <td class="colLast"> |
| <div class="block">Attempts to split this scan task into several smaller scan tasks, each close to <code> |
| splitSize</code> size.</div> |
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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#estimatedRowsCount()">estimatedRowsCount</a>, <a href="ScanTask.html#filesCount()">filesCount</a>, <a href="ScanTask.html#isDataTask()">isDataTask</a>, <a href="ScanTask.html#isFileScanTask()">isFileScanTask</a>, <a href="ScanTask.html#sizeBytes()">sizeBytes</a></code></li> |
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| <h4>split</h4> |
| <pre class="methodSignature">java.lang.Iterable<<a href="SplittableScanTask.html" title="type parameter in SplittableScanTask">ThisT</a>> split​(long targetSplitSize)</pre> |
| <div class="block">Attempts to split this scan task into several smaller scan tasks, each close to <code> |
| splitSize</code> size. |
| |
| <p>Note the target split size is just guidance and the actual split size may be either smaller |
| or larger. File formats like Parquet may leverage the row group offset information while |
| splitting tasks.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>targetSplitSize</code> - the target size of each new scan task in bytes</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an Iterable of smaller tasks</dd> |
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