static String getColumnTypesProperty() {
      return "int:bigint:string:float:double:struct<writeId:bigint,bucketId:int,rowId:bigint>";
    }
Test the OrcRecordUpdater with the OrcRawRecordMerger when there is
a base and a delta.
@throws Exception
ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestOrcRawRecordMerger.java