adonis0147 opened a new pull request, #16060:
URL: https://github.com/apache/doris/pull/16060
## Use case
```shell
mysql> CREATE TABLE t_user (
-> event_day DATE,
-> id bigint,
-> username varchar(20)
-> )
-> DISTRIBUTED BY HASH(id) BUCKETS 10
-> PROPERTIES ('replication_num' = '1');
Query OK, 0 rows affected (0.07 sec)
mysql> CREATE TABLE t_user_pv(
-> event_day DATE,
-> id bigint,
-> pv bigint
-> )
-> DISTRIBUTED BY HASH(id) BUCKETS 10
-> PROPERTIES ('replication_num' = '1');
Query OK, 0 rows affected (0.09 sec)
mysql> CREATE MATERIALIZED VIEW mv
-> BUILD IMMEDIATE REFRESH COMPLETE
-> KEY (username)
-> DISTRIBUTED BY HASH(username) BUCKETS 10
-> PROPERTIES ('replication_num' = '1')
-> AS SELECT /*+ SET_VAR(exec_mem_limit=1048576, query_timeout = 3600)
*/ t1.username ,t2.pv FROM t_user t1 LEFT JOIN t_user_pv t2 on t1.id = t2.id;
Query OK, 0 rows affected (0.10 sec)
```
## Checklist(Required)
1. Does it affect the original behavior:
- [ ] Yes
- [x] No
- [ ] I don't know
2. Has unit tests been added:
- [x] Yes
- [ ] No
- [ ] No Need
3. Has document been added or modified:
- [ ] Yes
- [x] No
- [ ] No Need
4. Does it need to update dependencies:
- [ ] Yes
- [x] No
5. Are there any changes that cannot be rolled back:
- [ ] Yes (If Yes, please explain WHY)
- [x] No
## Further comments
If this is a relatively large or complex change, kick off the discussion at
[d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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