private static boolean checkBackQuotes(final String src) {
    int num = src.length() - src.replace("`", "").length();
    if (num % 2 == 1) {
      return false;
    }
    return src.length() == (src.replace("``", "").length() + num);
  }
Remove the back quotes of a measurement if necessary
iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/utils/PathUtils.java