airborne12 opened a new pull request, #69047:
URL: https://github.com/apache/doris/pull/69047
### What problem does this PR solve?
Issue Number: None
Related PR: #67538, #68643, #68501
Problem Summary:
The branch-4.2 `RegexGramRecallTest.DynamicPatternRegexExecution` test
expects every RE2-rejected dynamic pattern to return an error. Dynamic REGEXP
now falls back to Boost.Regex when `enable_extended_regex` is enabled. Boost
accepts `timeout\Z`, `ab\hcdtimeout`, and `timeout(?=END)`, so BE UT build
1066836 reports six assertion failures.
Port the fallback-case expectations from the master gram test. The test now
checks successful matches for Boost-valid patterns when extended regex is
enabled and still checks rejection for invalid syntax such as `timeout\xZZ`.
This changes one test file. It does not change regex execution or gram index
behavior.
### Release note
None
### Check List (For Author)
- Test
- [ ] Regression test
- [ ] Unit Test: Not run locally. This isolated worktree has no BE UT
binary. The PR's BE UT pipeline will run the changed test.
- [ ] Manual test
- [ ] No need to test or manual test
- Validation completed:
- [x] The fallback-case assertion block matches the master test exactly.
- [x] `clang-format` 16 dry run and the full PR format preflight passed
against `branch-4.2` at `ccb49f1f53df`.
- [x] `git diff --check` and the full PR English description check
passed.
- Behavior changed:
- [x] No. The PR changes only test expectations.
- [ ] Yes.
- Does this need documentation?
- [x] No.
- [ ] Yes.
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label
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