protected static ColumnCategory getColumnCategory(String typeStr) {
    if (StringUtils.isNotBlank(typeStr)) {
      try {
        return ColumnCategory.valueOf(typeStr);
      } catch (Exception e) {
        return null;
      }
    }
    return null;
  }
return the ColumnCategory

@param typeStr
@return
iotdb-client/cli/src/main/java/org/apache/iotdb/tool/data/AbstractDataTool.java