--! qt:dataset:src | |
set hive.map.aggr=true; | |
set hive.groupby.skewindata=true; | |
set mapred.reduce.tasks=31; | |
CREATE TABLE dest1_n76(key INT) STORED AS TEXTFILE; | |
EXPLAIN | |
FROM src INSERT OVERWRITE TABLE dest1_n76 SELECT sum(src.key); | |
FROM src INSERT OVERWRITE TABLE dest1_n76 SELECT sum(src.key); | |
SELECT dest1_n76.* FROM dest1_n76; |