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| <h2 title="Class DataOperations" class="title">Class DataOperations</h2> |
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| <pre>public class <span class="typeNameLabel">DataOperations</span> |
| extends java.lang.Object</pre> |
| <div class="block">Data operations that produce snapshots. |
| <p> |
| A snapshot can return the operation that created the snapshot to help other components ignore |
| snapshots that are not needed for some tasks. For example, snapshot expiration does not need to |
| clean up deleted files for appends, which have no deleted files.</div> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/DataOperations.html#APPEND">APPEND</a></span></code> |
| <div class="block">New data is appended to the table and no data is removed or deleted.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/DataOperations.html#DELETE">DELETE</a></span></code> |
| <div class="block">Data is deleted from the table and no data is added.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/DataOperations.html#OVERWRITE">OVERWRITE</a></span></code> |
| <div class="block">New data is added to overwrite existing data.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/DataOperations.html#REPLACE">REPLACE</a></span></code> |
| <div class="block">Files are removed and replaced, without changing the data in the table.</div> |
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| <h4>APPEND</h4> |
| <pre>public static final java.lang.String APPEND</pre> |
| <div class="block">New data is appended to the table and no data is removed or deleted. |
| <p> |
| This operation is implemented by <a href="../../../org/apache/iceberg/AppendFiles.html" title="interface in org.apache.iceberg"><code>AppendFiles</code></a>.</div> |
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| <pre>public static final java.lang.String REPLACE</pre> |
| <div class="block">Files are removed and replaced, without changing the data in the table. |
| <p> |
| This operation is implemented by <a href="../../../org/apache/iceberg/RewriteFiles.html" title="interface in org.apache.iceberg"><code>RewriteFiles</code></a>.</div> |
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| <pre>public static final java.lang.String OVERWRITE</pre> |
| <div class="block">New data is added to overwrite existing data. |
| <p> |
| This operation is implemented by <a href="../../../org/apache/iceberg/OverwriteFiles.html" title="interface in org.apache.iceberg"><code>OverwriteFiles</code></a> and <a href="../../../org/apache/iceberg/ReplacePartitions.html" title="interface in org.apache.iceberg"><code>ReplacePartitions</code></a>.</div> |
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| <h4>DELETE</h4> |
| <pre>public static final java.lang.String DELETE</pre> |
| <div class="block">Data is deleted from the table and no data is added. |
| <p> |
| This operation is implemented by <a href="../../../org/apache/iceberg/DeleteFiles.html" title="interface in org.apache.iceberg"><code>DeleteFiles</code></a>.</div> |
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