Guosmilesmile commented on code in PR #15776:
URL: https://github.com/apache/iceberg/pull/15776#discussion_r3154625801
##########
orc/src/main/java/org/apache/iceberg/data/orc/GenericOrcReaders.java:
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@@ -56,11 +57,25 @@ public class GenericOrcReaders {
private GenericOrcReaders() {}
+ /**
+ * @deprecated Use {@link #struct(TypeDescription, List, Types.StructType,
Map)} instead. This
+ * method uses position-based binding which may cause field misalignment
in MOR and lineage
+ * scenarios.
+ */
Review Comment:
Initially, I was reading by position based on the original approach, but it
failed in Spark's TestMergeOnReadWithLineage while TestCopyOnWriteWithLineage
passed correctly. That's why the MOR distinction came up.
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