| --! qt:dataset:src |
| set hive.mapred.mode=nonstrict; |
| set hive.map.aggr=true; |
| set hive.groupby.skewindata=true; |
| |
| explain |
| select x.key, count(1) from src x where x.key > 9999 group by x.key; |
| |
| select x.key, count(1) from src x where x.key > 9999 group by x.key; |
| |
| set hive.map.aggr=true; |
| set hive.groupby.skewindata=false; |
| |
| explain |
| select x.key, count(1) from src x where x.key > 9999 group by x.key; |
| |
| select x.key, count(1) from src x where x.key > 9999 group by x.key; |
| |
| set hive.map.aggr=false; |
| set hive.groupby.skewindata=true; |
| |
| explain |
| select x.key, count(1) from src x where x.key > 9999 group by x.key; |
| |
| select x.key, count(1) from src x where x.key > 9999 group by x.key; |
| |
| set hive.map.aggr=false; |
| set hive.groupby.skewindata=false; |
| |
| explain |
| select x.key, count(1) from src x where x.key > 9999 group by x.key; |
| |
| select x.key, count(1) from src x where x.key > 9999 group by x.key; |