wombatu-kun commented on code in PR #16852:
URL: https://github.com/apache/iceberg/pull/16852#discussion_r3433018269


##########
parquet/src/test/java/org/apache/iceberg/parquet/TestVariantReaders.java:
##########
@@ -1349,6 +1349,95 @@ public void 
testArrayWithElementValueTypedValueConflict() {
         .hasMessageContaining("Invalid variant, conflicting value and 
typed_value");
   }
 
+  @Test
+  public void testMetadataCachingWithIdenticalRows() throws IOException {

Review Comment:
   Confirmed addressed by commit 2: the `isSameAs` / `isNotSameAs` assertions 
now fail if the cache is reverted, since `read()` would otherwise return a 
fresh instance per row, and both the length and byte-content invalidation paths 
are covered. I can't resolve the thread myself, so feel free to close it.



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