hadoop dfs -rmr /tmp/oss_access_test/2017-04-01
hadoop dfs -mkdir -p /tmp/oss_access_test/2017-04-01/
hadoop dfs -cp /tmp/oss_access/2017-04-01/sz-98-72_localhost_access_log.2017-04-01.*.txt /tmp/oss_access_test/2017-04-01/sz-98-72_localhost_access_log.2017-04-01.*.txt
或：
hadoop dfs -cp -p /tmp/oss_access/2017-04-01/ /tmp/oss_access_test/
hadoop dfs -ls /tmp/oss_access_test/2017-04-01/
--刪除資料不進回收站
hadoop dfs -rmr -skipTrash /tmp/oss_access_test/2017-04-01/*
 

drop table if exists xx_ext_oss_access;
create external table xx_ext_oss_access
(
log_text string
)
partitioned by(pt_day string)
row format delimited
fields terminated by ','
location '/tmp/oss_access_test/';

alter table xx_ext_oss_access add partition(pt_day='2017-04-01') location '2017-04-01';
 

select * from xx_ext_oss_access limit 100;