BiteTheDDDDt opened a new pull request, #60062:
URL: https://github.com/apache/doris/pull/60062
### What problem does this PR solve?
This pull request extends the set utilities in the pipeline to support
nullable string keys in hash tables. The main changes involve introducing a new
method for handling nullable string columns, updating the variant types to
include this method, and adjusting the logic for selecting the appropriate
method based on nullability. Additionally, a new regression test output file
has been added.
Enhancements to set utilities for nullable string support:
* Introduced `SetMethodOneStringNullable` for handling nullable string
columns, using `MethodSingleNullableColumn` with a `DataWithNullKey` wrapper.
* Updated the `SetHashTableVariants` type to include the new
`SetMethodOneStringNullable` variant.
* Modified the `SetDataVariants` struct to select
`SetMethodOneStringNullable` when the string key is nullable, otherwise
defaulting to the non-nullable version.
Testing:
* Added a new regression test output file at
`regression-test/data/query_p0/set/rqg_prod_20240226/rqg_prod_20240226.out` to
cover the new functionality.
### 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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