uros-b commented on code in PR #18317:
URL: https://github.com/apache/iceberg/pull/18317#discussion_r4144010489


##########
spark/v4.2/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/TestChangelogTable.java:
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@@ -290,6 +297,23 @@ public void testMetadataColumns() {
         rows);
   }
 
+  @TestTemplate
+  public void rowLineageMetadataColumnsInV3() {

Review Comment:
   TestChangelogTable.rowLineageMetadataColumnsInV3 exercises only the INSERT 
path. LAST_UPDATED_SEQUENCE_NUMBER is declared preserveOnDelete(false), meaning 
DELETED changelog rows should return null for that column — but no test 
verifies this asymmetry. The new code path is small and the column declaration 
is clear, but this is a meaningful gap in the only V3 changelog-metadata test; 
worth a quick DELETE-path assertion before merge.



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