private void convertReduceWork(ReduceWork reduceWork) throws SemanticException {

      reduceWork.setVectorizationEnabled(true);

      VectorTaskColumnInfo vectorTaskColumnInfo = new VectorTaskColumnInfo();
      vectorTaskColumnInfo.assume();

      reduceWork.setVectorizedTestingReducerBatchSize(vectorizedTestingReducerBatchSize);

      validateAndVectorizeReduceWork(reduceWork, vectorTaskColumnInfo);
    }
Decimal types can be specified with different precision and scales e.g. decimal(10,5),
as opposed to other data types which can be represented by constant strings.
The regex matches only the {@link serdeConstants#DECIMAL_TYPE_NAME} prefix of the type.
ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/Vectorizer.java