hive写入如果是Windows环境很危险，会删掉上层结构

start rename file [hdfs://worker1:8020/user/hive/warehouse/mytest.db/test1__52277896_738f_453d_af16_171b2928b259\test__b4634892_0409_44d6_896d_766ad933c3b0]
INFO HdfsWriter$Job - start delete tmp dir [hdfs://worker1:8020/user/hive/warehouse/mytest.db]
注意到了吗？如果是Windows环境，最后是反斜杠，然后删除的就是hive库的所有表数据了

The report points to HdfsWriter$Job and shows a Windows path ending in a backslash, followed by deletion of the Hive warehouse directory. Start by tracing that rename/delete flow and reproduce the Windows-path case; done means the temporary path is deleted without removing the parent database or table data.

Written by the indexing model from the issue text.