| set hive.compute.query.using.stats=false; |
| set hive.fetch.task.conversion=none; |
| |
| drop table nullscan_table; |
| drop table onerow_table; |
| create table nullscan_table(i int); |
| create table onerow_table(i int); |
| insert into table onerow_table values(0); |
| |
| set hive.optimize.metadataonly=true; |
| select (1=1) from nullscan_table group by (1=1); |
| select (1=1) from onerow_table group by (1=1); |
| |
| |
| set hive.optimize.metadataonly=false; |
| select (1=1) from nullscan_table group by (1=1); |
| select (1=1) from onerow_table group by (1=1); |
| |
| |
| drop table nullscan_table; |
| drop table onerow_table; |
| |
