private void logReduceWorkExplainVectorization(ReduceWork reduceWork) {

      if (!logExplainVectorization(reduceWork, "Reduce")) {
        return;
      }

      // Conditions.
      LOG.info("Reducer " + HiveConf.ConfVars.HIVE_VECTORIZATION_REDUCE_ENABLED.varname +
          ": " + reduceWork.getReduceVectorizationEnabled());
      LOG.info("Reducer engine: " + reduceWork.getVectorReduceEngine());
    }
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