LiBinfeng-01 opened a new pull request, #43788:
URL: https://github.com/apache/doris/pull/43788
pick: #43422
- Problem function like ```select floor(300.343, 2)``` precision should be 5
and scale should be 2, but now is (6, 2) after compute precision, but after
folding const on fe, it changed to (5, 2) but upper level of plan still expect
the output of child to be (6, 2). So it would rise an exception when executing.
- How it was fixed fix folding constant precision of
floor/round/ceil/truncate functions from (5, 2) to (6, 2) in upper case
- Notion when second value is negative and it absolute value >= precision -
value, it can not be expressed in fe which result is zero with decimal type (3,
0). like 000. So just let it go back and no using folding constant by fe.
- Related PR: #40744
- Release note Fix floor/round/ceil functions precision problem in folding
constant
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
None
### Check List (For Author)
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- [ ] 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:
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### Check List (For Reviewer who merge this PR)
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