| --! qt:dataset:src |
| SET hive.vectorized.execution.enabled=false; |
| set hive.mapred.mode=nonstrict; |
| ; |
| |
| set hive.exec.reducers.max = 1; |
| |
| -- SORT_QUERY_RESULTS |
| |
| CREATE TABLE tbl1_n0(key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 2 BUCKETS; |
| CREATE TABLE tbl2_n0(key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 2 BUCKETS; |
| CREATE TABLE tbl3(key int, value string) CLUSTERED BY (key) SORTED BY (key) INTO 2 BUCKETS; |
| |
| insert overwrite table tbl1_n0 |
| select * from src where key < 10; |
| |
| insert overwrite table tbl2_n0 |
| select * from src where key < 10; |
| |
| insert overwrite table tbl3 |
| select * from src where key < 10; |
| |
| ; |
| |
| set hive.exec.reducers.max = 100; |
| |
| set hive.auto.convert.join=true; |
| |
| set hive.optimize.bucketmapjoin = true; |
| |
| explain extended |
| select a.key as key, a.value as val1, b.value as val2, c.value as val3 |
| from tbl1_n0 a join tbl2_n0 b on a.key = b.key join tbl3 c on a.value = c.value; |
| |
| select a.key as key, a.value as val1, b.value as val2, c.value as val3 |
| from tbl1_n0 a join tbl2_n0 b on a.key = b.key join tbl3 c on a.value = c.value; |
| |
| set hive.optimize.bucketmapjoin = false; |
| |
| explain extended |
| select a.key as key, a.value as val1, b.value as val2, c.value as val3 |
| from tbl1_n0 a join tbl2_n0 b on a.key = b.key join tbl3 c on a.value = c.value; |
| |
| select a.key as key, a.value as val1, b.value as val2, c.value as val3 |
| from tbl1_n0 a join tbl2_n0 b on a.key = b.key join tbl3 c on a.value = c.value; |