### What problem does this PR solve?
fix show variable display wrong enable_nereids_planner value, introduced
by #49913
### Release note
None
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- [ ] This is a refactor/code format and no logic has been changed.
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- Behavior changed:
- [x] No.
- [ ] Yes. <!-- Explain the behavior change -->
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- [ ] No.
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### What problem does this PR solve?
cherry-pick from master (#49381)
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None
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- [ ] No.
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- [ ] No.
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…ght, append_trailing_char_if_absent (#49127)
The url_encode function previously performed a modulus operation on a
signed number. Converting it to an unsigned number will fix the issue.
```
before
mysql> select url_encode('编码');
+----------------------+
| url_encode('编码') |
+----------------------+
| %5.%23%0-%5.%10%/( |
+----------------------+
now
mysql> select url_encode('编码');
+----------------------+
| url_encode('编码') |
+----------------------+
| %E7%BC%96%E7%A0%81 |
+----------------------+
```
The strright function did not calculate the length according to the
number of UTF-8 characters.
```
before
mysql> select strright("你好世界",5);
+----------------------------+
| strright("你好世界",5) |
+----------------------------+
| |
+----------------------------+
now
mysql> select strright("你好世界",5);
+----------------------------+
| strright("你好世界",5) |
+----------------------------+
| 你好世界 |
+----------------------------+
```
he case of inputting a UTF-8 character was not considered.
```
mysql> select append_trailing_char_if_absent('中文', '文');
+-------------------------------------------------+
| append_trailing_char_if_absent('中文', '文') |
+-------------------------------------------------+
| NULL |
+-------------------------------------------------+
now
mysql> select append_trailing_char_if_absent('中文', '文');
+-------------------------------------------------+
| append_trailing_char_if_absent('中文', '文') |
+-------------------------------------------------+
| 中文 |
+-------------------------------------------------+
```
### What problem does this PR solve?
backport: https://github.com/apache/doris/pull/50308
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
None
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- Behavior changed:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
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- [ ] No.
- [ ] Yes. <!-- Add document PR link here. eg:
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### What problem does this PR solve?
backport:https://github.com/apache/doris/pull/48537
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 -->
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### What problem does this PR solve?
pr: https://github.com/apache/doris/pull/39427
commitId: 9ffb060a
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
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- [ ] 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
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