| --! qt:dataset:src1 |
| --! qt:dataset:src |
| set hive.mapred.mode=nonstrict; |
| set hive.explain.user=false; |
| set hive.map.aggr = true; |
| |
| -- SORT_QUERY_RESULTS |
| |
| -- union case: 1 subquery is a map-reduce job, different inputs for sub-queries, followed by reducesink |
| |
| explain |
| select unionsrc.key, count(1) FROM (select 'tst1' as key, cast(count(1) as string) as value from src s1 |
| UNION ALL |
| select s2.key as key, s2.value as value from src1 s2) unionsrc group by unionsrc.key; |
| |
| select unionsrc.key, count(1) FROM (select 'tst1' as key, cast(count(1) as string) as value from src s1 |
| UNION ALL |
| select s2.key as key, s2.value as value from src1 s2) unionsrc group by unionsrc.key; |
| |
| |
