| --! qt:dataset:src |
| |
| |
| create table tmp_n1(col0 string, col1 string,col2 string,col3 string,col4 string,col5 string,col6 string,col7 string,col8 string,col9 string,col10 string,col11 string); |
| |
| insert overwrite table tmp_n1 select key, cast(key + 1 as int), key +2, key+3, key+4, cast(key+5 as int), key+6, key+7, key+8, key+9, key+10, cast(key+11 as int) from src where key = 100; |
| |
| select * from tmp_n1; |
| set hive.auto.convert.join=true; |
| |
| explain |
| FROM src a JOIN tmp_n1 b ON (a.key = b.col11) |
| SELECT /*+ MAPJOIN(a) */ a.value, b.col5, count(1) as count |
| where b.col11 = 111 |
| group by a.value, b.col5; |
| |
| FROM src a JOIN tmp_n1 b ON (a.key = b.col11) |
| SELECT /*+ MAPJOIN(a) */ a.value, b.col5, count(1) as count |
| where b.col11 = 111 |
| group by a.value, b.col5; |
| |
| |
