0.13升级1.0数据兼容问题

1.0版本中路径不允许为实数，如 root.xx.10000009，使用tsfile导入1.0时 抛异常
org.apache.iotdb.commons.exception.IllegalPathException: root.xx.10000009 is not a legal path，对于这种不兼容的数据有什么办法可以导入到1.0版本吗？

Start by reproducing the 1.0 TSFile import with the path root.xx.10000009 and inspect the reported IllegalPathException. Trace how 1.0 validates paths and compare that behavior with the 0.13 data format. Done means establishing whether a compatible import path exists or documenting the required migration handling.

Written by the indexing model from the issue text.