建分区外表 自动导入数据

===========建表后增加分区，数据自动导入

 

create external table gid_tag_1114

(a1 string ,b1 string,c1 string )

partitioned by (day int)

row format delimited fields terminated by '|'

 

添加分区

alter table gid_tag_1114 add partition(day=20161112)

location 'hdfs://172.16.11.208/data_result/user/dw_user_app_tag_gid/20161112'

 

这样表就建好了，不用再用load导入数据了