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[BugFix] Fix decimal literal equals uncheck type (backport #50626) #50657

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merged 1 commit into from
Sep 6, 2024

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@mergify mergify bot commented Sep 4, 2024

Why I'm doing:

image

sum(gmv * 1.00000000000): 1.00000000000 is DECIMAL64(12, 11) Literal
sum(gmv * 1.000) : 1.000 is DECIMAL32(4, 3) Literal

equals method check 1.00000000000 is same as 1.000, but the results of hashcode method is different.
In analyze, will check duplicate expression by list.contains, only use equals method, then two expression will be reduce to one, but in QueryTransform, use HashMap to find expression, it's will take can't find expression because hashcode is different.

What I'm doing:

Fixes #issue

What type of PR is this:

  • BugFix
  • Feature
  • Enhancement
  • Refactor
  • UT
  • Doc
  • Tool

Does this PR entail a change in behavior?

  • Yes, this PR will result in a change in behavior.
  • No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

  • Interface/UI changes: syntax, type conversion, expression evaluation, display information
  • Parameter changes: default values, similar parameters but with different default values
  • Policy changes: use new policy to replace old one, functionality automatically enabled
  • Feature removed
  • Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

  • I have added test cases for my bug fix or my new feature
  • This pr needs user documentation (for new or modified features or behaviors)
    • I have added documentation for my new feature or new function
  • This is a backport pr

Bugfix cherry-pick branch check:

  • I have checked the version labels which the pr will be auto-backported to the target branch
    • 3.3
    • 3.2
    • 3.1
    • 3.0
    • 2.5

This is an automatic backport of pull request #50626 done by [Mergify](https://mergify.com). ## Why I'm doing: ![image](https://github.com/user-attachments/assets/f19909f9-8570-4dd1-8759-289ea6a56308)

sum(gmv * 1.00000000000): 1.00000000000 is DECIMAL64(12, 11) Literal
sum(gmv * 1.000) : 1.000 is DECIMAL32(4, 3) Literal

equals method check 1.00000000000 is same as 1.000, but the results of hashcode method is different.
In analyze, will check duplicate expression by list.contains, only use equals method, then two expression will be reduce to one, but in QueryTransform, use HashMap to find expression, it's will take can't find expression because hashcode is different.

What I'm doing:

Fixes #issue

What type of PR is this:

  • BugFix
  • Feature
  • Enhancement
  • Refactor
  • UT
  • Doc
  • Tool

Does this PR entail a change in behavior?

  • Yes, this PR will result in a change in behavior.
  • No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

  • Interface/UI changes: syntax, type conversion, expression evaluation, display information
  • Parameter changes: default values, similar parameters but with different default values
  • Policy changes: use new policy to replace old one, functionality automatically enabled
  • Feature removed
  • Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

  • I have added test cases for my bug fix or my new feature
  • This pr needs user documentation (for new or modified features or behaviors)
    • I have added documentation for my new feature or new function
  • This is a backport pr

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sonarqubecloud bot commented Sep 4, 2024

@wanpengfei-git wanpengfei-git merged commit dade530 into branch-3.3 Sep 6, 2024
35 checks passed
@wanpengfei-git wanpengfei-git deleted the mergify/bp/branch-3.3/pr-50626 branch September 6, 2024 08:34
xiangguangyxg pushed a commit to xiangguangyxg/starrocks that referenced this pull request Sep 6, 2024
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2 participants