starocean999 opened a new pull request, #17035:
URL: https://github.com/apache/doris/pull/17035
# Proposed changes
Issue Number: close #xxx
Consider the sql bellow:
select
sum(cc.qlnm) as qlnm
FROM
outerjoin_A
left join (
SELECT
outerjoin_B.b,
**coalesce(outerjoin_C.c, 0)** AS `qlnm`
FROM
outerjoin_B
inner JOIN
outerjoin_C
ON outerjoin_B.b = outerjoin_C.c
) cc on outerjoin_A.a = cc.b
group by
outerjoin_A.a;
The **coalesce(outerjoin_C.c, 0)** was calculated in the agg node, which is
wrong. This pr correct this, and the expr is calculated in the inner join node
now.
Describe your changes.
## Checklist(Required)
* [ ] Does it affect the original behavior
* [ ] Has unit tests been added
* [ ] Has document been added or modified
* [ ] Does it need to update dependencies
* [ ] Is this PR support rollback (If NO, please explain WHY)
## Further comments
If this is a relatively large or complex change, kick off the discussion at
[[email protected]](mailto:[email protected]) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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