--! qt:dataset:src | |
set hive.map.aggr=true; | |
set hive.groupby.skewindata=false; | |
set mapred.reduce.tasks=31; | |
CREATE TABLE dest1_n75(key INT) STORED AS TEXTFILE; | |
EXPLAIN | |
FROM src INSERT OVERWRITE TABLE dest1_n75 SELECT sum(src.key); | |
FROM src INSERT OVERWRITE TABLE dest1_n75 SELECT sum(src.key); | |
SELECT dest1_n75.* FROM dest1_n75; |