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| <li>Summary: </li> |
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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 OverwriteFiles" class="title">Interface OverwriteFiles</h2> |
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| <dt>All Superinterfaces:</dt> |
| <dd><code><a href="PendingUpdate.html" title="interface in org.apache.iceberg">PendingUpdate</a><<a href="Snapshot.html" title="interface in org.apache.iceberg">Snapshot</a>></code>, <code><a href="SnapshotUpdate.html" title="interface in org.apache.iceberg">SnapshotUpdate</a><<a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a>></code></dd> |
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| <dt>All Known Implementing Classes:</dt> |
| <dd><code><a href="BaseOverwriteFiles.html" title="class in org.apache.iceberg">BaseOverwriteFiles</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public interface <span class="typeNameLabel">OverwriteFiles</span> |
| extends <a href="SnapshotUpdate.html" title="interface in org.apache.iceberg">SnapshotUpdate</a><<a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a>></pre> |
| <div class="block">API for overwriting files in a table. |
| |
| <p>This API accumulates file additions and produces a new <a href="Snapshot.html" title="interface in org.apache.iceberg"><code>Snapshot</code></a> of the table by |
| replacing all the deleted files with the set of additions. This operation is used to implement |
| idempotent writes that always replace a section of a table with new data or update/delete |
| operations that eagerly overwrite files. |
| |
| <p>Overwrites can be validated. The default validation mode is idempotent, meaning the overwrite |
| is correct and should be committed out regardless of other concurrent changes to the table. For |
| example, this can be used for replacing all the data for day D with query results. Alternatively, |
| this API can be configured for overwriting certain files with their filtered versions while |
| ensuring no new data that would need to be filtered has been added. |
| |
| <p>When committing, these changes will be applied to the latest table snapshot. Commit conflicts |
| will be resolved by applying the changes to the new latest snapshot and reattempting the commit.</div> |
| </li> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary"> |
| <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="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <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="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#addFile(org.apache.iceberg.DataFile)">addFile</a></span>​(<a href="DataFile.html" title="interface in org.apache.iceberg">DataFile</a> file)</code></th> |
| <td class="colLast"> |
| <div class="block">Add a <a href="DataFile.html" title="interface in org.apache.iceberg"><code>DataFile</code></a> to the table.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#caseSensitive(boolean)">caseSensitive</a></span>​(boolean caseSensitive)</code></th> |
| <td class="colLast"> |
| <div class="block">Enables or disables case sensitive expression binding for validations that accept expressions.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#conflictDetectionFilter(org.apache.iceberg.expressions.Expression)">conflictDetectionFilter</a></span>​(<a href="expressions/Expression.html" title="interface in org.apache.iceberg.expressions">Expression</a> conflictDetectionFilter)</code></th> |
| <td class="colLast"> |
| <div class="block">Sets a conflict detection filter used to validate concurrently added data and delete files.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#deleteFile(org.apache.iceberg.DataFile)">deleteFile</a></span>​(<a href="DataFile.html" title="interface in org.apache.iceberg">DataFile</a> file)</code></th> |
| <td class="colLast"> |
| <div class="block">Delete a <a href="DataFile.html" title="interface in org.apache.iceberg"><code>DataFile</code></a> from the table.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#overwriteByRowFilter(org.apache.iceberg.expressions.Expression)">overwriteByRowFilter</a></span>​(<a href="expressions/Expression.html" title="interface in org.apache.iceberg.expressions">Expression</a> expr)</code></th> |
| <td class="colLast"> |
| <div class="block">Delete files that match an <a href="expressions/Expression.html" title="interface in org.apache.iceberg.expressions"><code>Expression</code></a> on data rows from the table.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#validateAddedFilesMatchOverwriteFilter()">validateAddedFilesMatchOverwriteFilter</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Signal that each file added to the table must match the overwrite expression.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#validateFromSnapshot(long)">validateFromSnapshot</a></span>​(long snapshotId)</code></th> |
| <td class="colLast"> |
| <div class="block">Set the snapshot ID used in any reads for this operation.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#validateNoConflictingData()">validateNoConflictingData</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Enables validation that data added concurrently does not conflict with this commit's operation.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#validateNoConflictingDeletes()">validateNoConflictingDeletes</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Enables validation that deletes that happened concurrently do not conflict with this commit's |
| operation.</div> |
| </td> |
| </tr> |
| </table> |
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| </a> |
| <h3>Methods inherited from interface org.apache.iceberg.<a href="PendingUpdate.html" title="interface in org.apache.iceberg">PendingUpdate</a></h3> |
| <code><a href="PendingUpdate.html#apply()">apply</a>, <a href="PendingUpdate.html#commit()">commit</a>, <a href="PendingUpdate.html#updateEvent()">updateEvent</a></code></li> |
| </ul> |
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| <!-- --> |
| </a> |
| <h3>Methods inherited from interface org.apache.iceberg.<a href="SnapshotUpdate.html" title="interface in org.apache.iceberg">SnapshotUpdate</a></h3> |
| <code><a href="SnapshotUpdate.html#deleteWith(java.util.function.Consumer)">deleteWith</a>, <a href="SnapshotUpdate.html#scanManifestsWith(java.util.concurrent.ExecutorService)">scanManifestsWith</a>, <a href="SnapshotUpdate.html#set(java.lang.String,java.lang.String)">set</a>, <a href="SnapshotUpdate.html#stageOnly()">stageOnly</a>, <a href="SnapshotUpdate.html#toBranch(java.lang.String)">toBranch</a></code></li> |
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| </a> |
| <h3>Method Detail</h3> |
| <a id="overwriteByRowFilter(org.apache.iceberg.expressions.Expression)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>overwriteByRowFilter</h4> |
| <pre class="methodSignature"><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a> overwriteByRowFilter​(<a href="expressions/Expression.html" title="interface in org.apache.iceberg.expressions">Expression</a> expr)</pre> |
| <div class="block">Delete files that match an <a href="expressions/Expression.html" title="interface in org.apache.iceberg.expressions"><code>Expression</code></a> on data rows from the table. |
| |
| <p>A file is selected to be deleted by the expression if it could contain any rows that match |
| the expression (candidate files are selected using an <a href="expressions/Projections.html#inclusive(org.apache.iceberg.PartitionSpec)"><code>inclusive projection</code></a>). These candidate files are deleted |
| if all of the rows in the file must match the expression (the partition data matches the |
| expression's <a href="expressions/Projections.html#strict(org.apache.iceberg.PartitionSpec)"><code>Projections.strict(PartitionSpec)</code></a> strict projection}). This guarantees |
| that files are deleted if and only if all rows in the file must match the expression. |
| |
| <p>Files that may contain some rows that match the expression and some rows that do not will |
| result in a <a href="exceptions/ValidationException.html" title="class in org.apache.iceberg.exceptions"><code>ValidationException</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>expr</code> - an expression on rows in the table</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="exceptions/ValidationException.html" title="class in org.apache.iceberg.exceptions">ValidationException</a></code> - If a file can contain both rows that match and rows that do not</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="addFile(org.apache.iceberg.DataFile)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>addFile</h4> |
| <pre class="methodSignature"><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a> addFile​(<a href="DataFile.html" title="interface in org.apache.iceberg">DataFile</a> file)</pre> |
| <div class="block">Add a <a href="DataFile.html" title="interface in org.apache.iceberg"><code>DataFile</code></a> to the table.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>file</code> - a data file</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="deleteFile(org.apache.iceberg.DataFile)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>deleteFile</h4> |
| <pre class="methodSignature"><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a> deleteFile​(<a href="DataFile.html" title="interface in org.apache.iceberg">DataFile</a> file)</pre> |
| <div class="block">Delete a <a href="DataFile.html" title="interface in org.apache.iceberg"><code>DataFile</code></a> from the table.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>file</code> - a data file</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="validateAddedFilesMatchOverwriteFilter()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>validateAddedFilesMatchOverwriteFilter</h4> |
| <pre class="methodSignature"><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a> validateAddedFilesMatchOverwriteFilter()</pre> |
| <div class="block">Signal that each file added to the table must match the overwrite expression. |
| |
| <p>If this method is called, each added file is validated on commit to ensure that it matches |
| the overwrite row filter. This is used to ensure that writes are idempotent: that files cannot |
| be added during a commit that would not be removed if the operation were run a second time.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="validateFromSnapshot(long)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>validateFromSnapshot</h4> |
| <pre class="methodSignature"><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a> validateFromSnapshot​(long snapshotId)</pre> |
| <div class="block">Set the snapshot ID used in any reads for this operation. |
| |
| <p>Validations will check changes after this snapshot ID. If the from snapshot is not set, all |
| ancestor snapshots through the table's initial snapshot are validated.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>snapshotId</code> - a snapshot ID</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="caseSensitive(boolean)"> |
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| <h4>caseSensitive</h4> |
| <pre class="methodSignature"><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a> caseSensitive​(boolean caseSensitive)</pre> |
| <div class="block">Enables or disables case sensitive expression binding for validations that accept expressions.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>caseSensitive</code> - whether expression binding should be case sensitive</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="conflictDetectionFilter(org.apache.iceberg.expressions.Expression)"> |
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| </a> |
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| <li class="blockList"> |
| <h4>conflictDetectionFilter</h4> |
| <pre class="methodSignature"><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a> conflictDetectionFilter​(<a href="expressions/Expression.html" title="interface in org.apache.iceberg.expressions">Expression</a> conflictDetectionFilter)</pre> |
| <div class="block">Sets a conflict detection filter used to validate concurrently added data and delete files.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>conflictDetectionFilter</code> - an expression on rows in the table</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="validateNoConflictingData()"> |
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| </a> |
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| <li class="blockList"> |
| <h4>validateNoConflictingData</h4> |
| <pre class="methodSignature"><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a> validateNoConflictingData()</pre> |
| <div class="block">Enables validation that data added concurrently does not conflict with this commit's operation. |
| |
| <p>This method should be called while committing non-idempotent overwrite operations. If a |
| concurrent operation commits a new file after the data was read and that file might contain |
| rows matching the specified conflict detection filter, the overwrite operation will detect this |
| and fail. |
| |
| <p>Calling this method with a correct conflict detection filter is required to maintain |
| isolation for non-idempotent overwrite operations. |
| |
| <p>Validation uses the conflict detection filter passed to <a href="#conflictDetectionFilter(org.apache.iceberg.expressions.Expression)"><code>conflictDetectionFilter(Expression)</code></a> and applies to operations that happened after the |
| snapshot passed to <a href="#validateFromSnapshot(long)"><code>validateFromSnapshot(long)</code></a>. If the conflict detection filter is not |
| set, any new data added concurrently will fail this overwrite operation.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="validateNoConflictingDeletes()"> |
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| </a> |
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| <h4>validateNoConflictingDeletes</h4> |
| <pre class="methodSignature"><a href="OverwriteFiles.html" title="interface in org.apache.iceberg">OverwriteFiles</a> validateNoConflictingDeletes()</pre> |
| <div class="block">Enables validation that deletes that happened concurrently do not conflict with this commit's |
| operation. |
| |
| <p>Validating concurrent deletes is required during non-idempotent overwrite operations. If a |
| concurrent operation deletes data in one of the files being overwritten, the overwrite |
| operation must be aborted as it may undelete rows that were removed concurrently. |
| |
| <p>Calling this method with a correct conflict detection filter is required to maintain |
| isolation for non-idempotent overwrite operations. |
| |
| <p>Validation uses the conflict detection filter passed to <a href="#conflictDetectionFilter(org.apache.iceberg.expressions.Expression)"><code>conflictDetectionFilter(Expression)</code></a> and applies to operations that happened after the |
| snapshot passed to <a href="#validateFromSnapshot(long)"><code>validateFromSnapshot(long)</code></a>. If the conflict detection filter is not |
| set, this operation will use the row filter provided in <a href="#overwriteByRowFilter(org.apache.iceberg.expressions.Expression)"><code>overwriteByRowFilter(Expression)</code></a> to check for new delete files and will ensure there are no |
| conflicting deletes for data files removed via <a href="#deleteFile(org.apache.iceberg.DataFile)"><code>deleteFile(DataFile)</code></a>.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
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