morrySnow opened a new pull request, #43597:
URL: https://github.com/apache/doris/pull/43597
Related PR: #18257
Problem Summary:
when construct alias function for Nereids, should use unbound slot as
placeholder.
Currently, we use SlotReference, then we could replace it by wrong parameter,
because SlotReference use ExprId as Unique Identifier.
For example, if placeholder's ExprId is 1, then all slots that ExprId equals
one
will be replaced by input parameter.
### Release note
Fix the issus that wrong result when using alias function.
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [x] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [x] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [x] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
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