private static Integer getIcebergFieldId(OrcColumn column) {
    String icebergId = column.getAttributes().get(ORC_ICEBERG_ID_KEY);
    verify(
        icebergId != null,
        format("column %s does not have %s property", column, ORC_ICEBERG_ID_KEY));
    return Integer.valueOf(icebergId);
  }
Gets the index based dereference chain to get from the readColumnHandle to the
expectedColumnHandle
amoro-format-mixed/amoro-mixed-trino/src/main/java/org/apache/amoro/trino/unkeyed/IcebergPageSourceProvider.java