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@github-actions github-actions bot commented Sep 4, 2025

Cherry-picked from #55183

…ative ID generation (#55183)

### What problem does this PR solve?

Problem Summary:
`Replace Math.abs() with bitwise AND operation in genIdByName() method`

problem:
- Math.abs(Long.MIN_VALUE) returns Long.MIN_VALUE (still negative) due
to overflow
- This violates the requirement that external db/table IDs must be >= 0
- Could cause issues in DescriptorTable.toThrift() as mentioned in
comments

fix:
- Use bitwise AND with Long.MAX_VALUE to clear the sign bit
- Guarantees non-negative result in range [0, Long.MAX_VALUE]
- Better performance than Math.abs() conditional check

### 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)
    - [ ] 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:
apache/doris-website#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 -->
@github-actions github-actions bot requested a review from yiguolei as a code owner September 4, 2025 13:25
@hello-stephen
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Thank you for your contribution to Apache Doris.
Don't know what should be done next? See How to process your PR.

Please clearly describe your PR:

  1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
  2. Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
  3. What features were added. Why was this function added?
  4. Which code was refactored and why was this part of the code refactored?
  5. Which functions were optimized and what is the difference before and after the optimization?

@dataroaring dataroaring closed this Sep 4, 2025
@dataroaring dataroaring reopened this Sep 4, 2025
@hello-stephen
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run buildall

@github-actions github-actions bot added the approved Indicates a PR has been approved by one committer. label Sep 5, 2025
@github-actions
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github-actions bot commented Sep 5, 2025

PR approved by at least one committer and no changes requested.

@github-actions
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github-actions bot commented Sep 5, 2025

PR approved by anyone and no changes requested.

@yiguolei yiguolei merged commit f3b18af into branch-2.1 Sep 5, 2025
21 checks passed
@github-actions github-actions bot deleted the auto-pick-55183-branch-2.1 branch September 5, 2025 16:10
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5 participants