private boolean shouldUseVectorizedInputFormat(Set<String> inputFileFormatClassNames) {
      if (inputFileFormatClassNames == null || inputFileFormatClassNames.isEmpty()
          || !useVectorizedInputFileFormat) {
        return useVectorizedInputFileFormat;
      }
      //Global config of vectorized input format is enabled; check if these inputformats are excluded
      for (String inputFormat : inputFileFormatClassNames) {
        if(isInputFormatExcluded(inputFormat, vectorizedInputFormatExcludes)) {
          return false;
        }
      }
      return true;
    }
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