jacktengg opened a new pull request, #65609:
URL: https://github.com/apache/doris/pull/65609
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
Formatting float and double values with max_digits10 preserves round-trip
precision but emits redundant digits such as 1.1000000000000001. Use fmt
Dragonbox shortest-round-trip formatting in BE and bit-exact matching
formatting in FE, and synchronize affected tests and expected results.
### Release note
Float and double values now use shortest round-trip string formatting
consistently in FE and BE.
### 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)
- [ ] 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:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] 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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