public static ObjectInspector getStandardObjectInspector(ObjectInspector oi) {
    return getStandardObjectInspector(oi, ObjectInspectorCopyOption.DEFAULT);
  }
Get the corresponding standard ObjectInspector for an ObjectInspector.

The returned ObjectInspector can be used to inspect the standard object.
serde/src/java/org/apache/hadoop/hive/serde2/objectinspector/ObjectInspectorUtils.java