Ryan19929 opened a new pull request, #50141:
URL: https://github.com/apache/doris/pull/50141
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
This PR fixes the issue of IK Analyzer's abnormal handling of full-width
characters and adds support for Emoji and rare character tokenization,
consistent with Elasticsearch IK behavior.
The main content is as follows:
- Fix the issue of incorrect character classification.
- Full-width numbers, letters, and punctuation marks will be converted to
half-width characters during output.
- Added SurrogatePairSegmenter for Emoji and rare characters.
- Increased unit tests and regression tests.
- Remove some unnecessary code.
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [X] Regression test
- [X] 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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