hive如何將 shell
a b 1
a b 2
a b 3
c d 4
c d 5
c d 6 spa
變爲: orm
a b 1,2,3
c d 4,5,6 string
test.txt it
a b 1
1.建表 table
drop table tmp_jiangzl_test;
create table tmp_jiangzl_test
(
col1 string,
col2 string,
col3 string
)
row format delimited fields terminated by '\t'
stored as textfile;
load data local inpath '/home/jiangzl/shell/test.txt' into table tmp_jiangzl_test; form
2.處理 test
select col1,col2,concat_ws(',',collect_set(col3))
from tmp_jiangzl_test
group by col1,col2; file
本文author:數據的開拓者成員之一 江中煉 select
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