sohardforaname opened a new pull request, #19013:
URL: https://github.com/apache/doris/pull/19013
# Proposed changes
Issue Number: close #xxx
## Problem summary
```sql
select if(
date_format(CONCAT_WS('', '9999-07', '-26'), '%Y-%m') =
DATE_FORMAT(curdate(), '%Y-%m'),
curdate(),
DATE_FORMAT(DATE_SUB(month_ceil(CONCAT_WS('', '9999-07',
'-26')), 1), '%Y-%m-%d'))
```
the child(2) of if() function are not in resultExpr after fold by be. So we
change the way to get resultExpr from get() to getOrDefault(original
expression).
## 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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