yy782 opened a new pull request, #68528:
URL: https://github.com/apache/doris/pull/68528
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
The type aliases for `next_day` / `previous_day` are swapped relative to
their
semantics:
```cpp
using FunctionNextDay = FunctionRelativeDay<true>; // true =>
"previous_day"
using FunctionPreviousDay = FunctionRelativeDay<false>; // false =>
"next_day"
```
`FunctionRelativeDay<IsPrevious>` derives its registered name from the
template
parameter: `IsPrevious ? "previous_day" : "next_day"`. So `FunctionNextDay`
is
actually aliased to the `previous_day` implementation, and vice versa.
This is purely a naming issue and does **not** change runtime behavior,
because
registration (`SimpleFunctionFactory::register_function<T>()`) uses the
static
`T::name` member rather than the type alias itself. The behavior of
`next_day`
and `previous_day` remains correct; only the alias names are misleading to
readers.
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [x] No need to test or manual test. Explain why:
- [x] 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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