rdblue commented on code in PR #12672:
URL: https://github.com/apache/iceberg/pull/12672#discussion_r2040366343


##########
spark/v3.4/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/TestMetadataTables.java:
##########
@@ -153,7 +155,10 @@ public void testUnpartitionedTable() throws Exception {
     assertThat(expectedDataManifests).as("Should have 1 data 
manifest").hasSize(1);
     assertThat(expectedDeleteManifests).as("Should have 1 delete 
manifest").hasSize(1);
 
-    Schema entriesTableSchema = Spark3Util.loadIcebergTable(spark, tableName + 
".entries").schema();
+    Schema entriesTableSchema =
+        TypeUtil.selectNot(
+            Spark3Util.loadIcebergTable(spark, tableName + 
".entries").schema(),
+            Set.of(DataFile.FIRST_ROW_ID.fieldId()));

Review Comment:
   The assertions in this suite were previously reading the manifest directly 
as Avro and matching against the rows returned by Spark. That always produces 
`null` for `first_row_id` but the manifest reader sets the field using 
inheritance so the tests were failing.
   
   The solution is to remove `first_row_id` from both the entries table schema 
(used to read manifests) and from the Spark datasets (via `selectNonDerived`).



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