morrySnow opened a new pull request, #11802:
URL: https://github.com/apache/doris/pull/11802
# Proposed changes
- add an interface ExpectsInputTypes to Expression
- add an interface ImplicitCastInputTypes to Expression
- add a Expression rewrite rule for type coercion
- add a Check Analysis Rule to check whether Plan is Semantically correct
if Expression implements ImplicitCastInputTypes, type coercion rule will
automatic rewrite its children that casting it to the most suitable type.
If Expression implements ExpectsInputTypes, Check Analysis will check its
children's type whether accepted by expects input types.
## Problem summary
Describe your changes.
## 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
- [ ] No
- [x] 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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