lgbo-ustc opened a new issue, #8007:
URL: https://github.com/apache/incubator-gluten/issues/8007
### Backend
CH (ClickHouse)
### Bug description
We have met a case as following
```sql
select * from t1 left join t2 on t1.key = t2.key
left join t3 on t1.key = t3.key
left join t4 on t1.key = t4.key
....
```
This will put multi joins in one execution stage, it's easy to cause OOM,
since each join operator consume a lot of memory. It's easy to alloc memory for
each join properly.
### Spark version
None
### Spark configurations
_No response_
### System information
_No response_
### Relevant logs
_No response_
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