private void setReduceWorkExplainConditions(ReduceWork reduceWork) {

      setExplainConditions(reduceWork);

      reduceWork.setReduceVectorizationEnabled(isReduceVectorizationEnabled);
      reduceWork.setVectorReduceEngine(
          HiveConf.getVar(hiveConf, HiveConf.ConfVars.HIVE_EXECUTION_ENGINE));
    }
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