hive表命名规范 源码规则

tablename 进来前已经把"`","."等过滤掉了，所以就是单词字符喽 \w搞定 \w包含_ 哈哈

规范就是 a-z A-Z 0-9 _ 也就是传说中的单词字符\w

/**
   * validateName
   *
   * Checks the name conforms to our standars which are: "[a-zA-z_0-9]+". checks
   * this is just characters and numbers and _
   *
   * @param name
   *          the name to validate
   * @return true or false depending on conformance
   * @exception MetaException
   *              if it doesn't match the pattern.
   */
  static public boolean validateName(String name) {
    Pattern tpat = Pattern.compile("[\\w_]+");
    Matcher m = tpat.matcher(name);
    if (m.matches()) {
      return true;
    }
    return false;
  }