| set hive.mapred.mode=nonstrict; |
| set hive.explain.user=false; |
| set hive.fetch.task.conversion=none; |
| |
| create table testvec(id int, dt int, greg_dt string) stored as orc; |
| insert into table testvec |
| values |
| (1,20150330, '2015-03-30'), |
| (2,20150301, '2015-03-01'), |
| (3,20150502, '2015-05-02'), |
| (4,20150401, '2015-04-01'), |
| (5,20150313, '2015-03-13'), |
| (6,20150314, '2015-03-14'), |
| (7,20150404, '2015-04-04'); |
| |
| set hive.vectorized.execution.enabled=true; |
| set hive.map.aggr=true; |
| |
| explain vectorization detail |
| select max(dt), max(greg_dt) from testvec where id=5; |
| select max(dt), max(greg_dt) from testvec where id=5; |
