RussellSpitzer commented on code in PR #12861:
URL: https://github.com/apache/iceberg/pull/12861#discussion_r2074205131


##########
core/src/main/java/org/apache/iceberg/BaseRowDelta.java:
##########
@@ -132,15 +144,44 @@ protected void validate(TableMetadata base, Snapshot 
parent) {
             parent);
       }
 
+      if (validateDeletes) {
+        failMissingDeletePaths();
+      }
+
       if (validateNewDataFiles) {
         validateAddedDataFiles(base, startingSnapshotId, 
conflictDetectionFilter, parent);
       }
 
       if (validateNewDeleteFiles) {
+        // validate that explicitly deleted files have not had added deletes
+        if (!deletedDataFiles.isEmpty()) {
+          validateNoNewDeletesForDataFiles(
+              base, startingSnapshotId, conflictDetectionFilter, 
deletedDataFiles, parent);
+        }
+
+        // validate that previous deletes do not conflict with added deletes
         validateNoNewDeleteFiles(base, startingSnapshotId, 
conflictDetectionFilter, parent);
       }
 
+      validateNoSimultaneousForDeletedFiles();
+
       validateAddedDVs(base, startingSnapshotId, conflictDetectionFilter, 
parent);
     }
   }
+
+  /** Validates that the data files removed in this commit do not overlap with 
delete files added */

Review Comment:
   ah that's true, validating for equality deletes would obviously be much more 
of a hassle. 



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