insert overwrite local directory <path> stored as parquet does not creates snappy.parquet data file at local directory path

0: jdbc:hive2://10.18.18.214:23040/func> insert overwrite local directory '/opt/trash4/' stored as parquet select * from trash1 a where a.country='PAK';
+---------+--+
| Result  |
+---------+--+
+---------+--+
No rows selected (1.368 seconds)

vm1:/opt/trash4 # ll
total 12
-rw-r--r-- 1 root root   8 Aug 22 14:30 ._SUCCESS.crc
-rw-r--r-- 1 root root  16 Aug 22 14:30 .part-00001-2b17ec6a-ef7e-4b45-927e-f93b88ff4f65-c000.crc
-rw-r--r-- 1 root root   0 Aug 22 14:30 _SUCCESS
-rw-r--r-- 1 root root 619 Aug 22 14:30 part-00001-2b17ec6a-ef7e-4b45-927e-f93b88ff4f65-c000