RussellSpitzer commented on a change in pull request #2865:
URL: https://github.com/apache/iceberg/pull/2865#discussion_r676742860



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File path: api/src/main/java/org/apache/iceberg/RewriteFiles.java
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@@ -54,12 +54,23 @@ default RewriteFiles rewriteFiles(Set<DataFile> 
filesToDelete, Set<DataFile> fil
   /**
    * Add a rewrite that replaces one set of files with another set that 
contains the same data.
    *
-   * @param dataFilesToDelete   data files that will be replaced (deleted).
-   * @param deleteFilesToDelete delete files that will be replaced (deleted).
+   * @param dataFilesToReplace   data files that will be replaced (deleted).
+   * @param deleteFilesToReplace delete files that will be replaced (deleted).
    * @param dataFilesToAdd      data files that will be added.
    * @param deleteFilesToAdd    delete files that will be added.
    * @return this for method chaining.
    */
-  RewriteFiles rewriteFiles(Set<DataFile> dataFilesToDelete, Set<DeleteFile> 
deleteFilesToDelete,
+  RewriteFiles rewriteFiles(Set<DataFile> dataFilesToReplace, Set<DeleteFile> 
deleteFilesToReplace,
                             Set<DataFile> dataFilesToAdd, Set<DeleteFile> 
deleteFilesToAdd);
+
+  /**
+   * 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.
+   *
+   * @param snapshotId a snapshot ID
+   * @return this for method chaining
+   */
+  RewriteFiles validateFromSnapshot(long snapshotId);

Review comment:
       I was wondering if this needs to be an open api? Seems like we always 
want to set it to table.currentSnapshot.snapshotID?




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