yujun777 opened a new pull request, #44732:
URL: https://github.com/apache/doris/pull/44732

   ### What problem does this PR solve?
   
   simplify comparison, check data type's limit, like:
   
   suppose a is tinyint, so its range should be [-128, 127], then we can 
simplify:
   
   a  = -129    => false
   a  <= -129  => false
   a  > -129    =>  true
   a <= -128   =>  a = -128
   
   currently data type check only support  tinyint, small int,  int, big int,  
decimalv3.
   
   if data type is float like, compare them with literal may lost precision,  
but maybe suport it later.
   
   Issue Number: close #xxx
   
   Related PR: #xxx
   
   Problem Summary:
   
   ### 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: 
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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