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[cherry-pick](branch-21) add more signatures for lag/lead fucntion (#47940) #48076

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merged 1 commit into from
Feb 19, 2025

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zhangstar333
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Problem Summary:
cherry-pick from master (#47940)

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  • Test

    • 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

  • Behavior changed:

    • No.
    • Yes.
  • Does this need documentation?

    • No.
  • Yes.

  • Confirm the release note

  • Confirm test cases

  • Confirm document

  • Add branch pick label

What problem does this PR solve?

Issue Number: close #xxx

Related PR: #xxx

Problem Summary:

Release note

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Check List (For Author)

  • Test

    • 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
  • Behavior changed:

    • No.
    • Yes.
  • Does this need documentation?

    • No.
    • Yes.

Check List (For Reviewer who merge this PR)

  • Confirm the release note
  • Confirm test cases
  • Confirm document
  • Add branch pick label

…#47940)

Problem Summary:
lag/lead it's should support three params, and it's have the same means
lag(column) = lag(column,1)=lag(column,1,NULL)

https://dev.mysql.com/doc/refman/8.0/en/window-function-descriptions.html#function_lag

None

- 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:
apache/doris-website#1214 -->

- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR
should merge into -->
@Thearas
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Thearas commented Feb 19, 2025

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?

@zhangstar333
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run buildall

@yiguolei yiguolei merged commit bb6641b into apache:branch-2.1 Feb 19, 2025
19 of 20 checks passed
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3 participants