aokolnychyi commented on a change in pull request #3195:
URL: https://github.com/apache/iceberg/pull/3195#discussion_r717837658



##########
File path: core/src/main/java/org/apache/iceberg/MergingSnapshotProducer.java
##########
@@ -320,6 +333,56 @@ protected void 
validateNoNewDeletesForDataFiles(TableMetadata base, Long startin
     }
   }
 
+  /**
+   * Validates that no delete files matching a filter have been added to the 
table since a starting snapshot.
+   *
+   * @param base table metadata to validate
+   * @param startingSnapshotId id of the snapshot current at the start of the 
operation
+   * @param dataFilter an expression used to find new conflicting delete files
+   * @param caseSensitive whether expression evaluation should be 
case-sensitive
+   */
+  protected void validateNoNewDeleteFiles(TableMetadata base, Long 
startingSnapshotId,
+                                          Expression dataFilter, boolean 
caseSensitive) {
+    // if there is no current table state, no files have been added
+    if (base.currentSnapshot() == null) {

Review comment:
       Added to both methods. Could you check, @rdblue?




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