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### Describe the problem
```
CREATE TABLE t1 (
id INT AUTO_INCREMENT PRIMARY KEY,
a VARCHAR(100) CHARACTER SET ARMSCII8
)engine=tianmu;
INSERT INTO t1 (a) VALUES(x'616263AC646566');
INSERT INTO…
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### Have you read the Contributing Guidelines on issues?
- [X] I have read the [Contributing Guidelines on issues](https://github.com/stoneatom/stonedb/blob/stonedb-5.7-dev/CONTRIBUTING.md).
###…
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### Have you read the Contributing Guidelines on issues?
- [X] I have read the [Contributing Guidelines on issues](https://github.com/stoneatom/stonedb/blob/stonedb-5.7-dev/CONTRIBUTING.md).
### Ple…
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**Is your feature request related to a problem? Please describe.**
Hope to support Windows operating system
**Describe the solution you'd like**
Mainstream databases : mysql、mariaDB、postgreSql ar…
-
### Have you read the Contributing Guidelines on issues?
- [X] I have read the [Contributing Guidelines on issues](https://github.com/stoneatom/stonedb/blob/stonedb-5.7-dev/CONTRIBUTING.md).
### Ple…
-
### Describe the problem
When you use a function on a field, performance is affected.The trace.log displays the message "Unoptimized expression near 'substr'".
```
###Abnormal
mysql> select s…
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### Have you read the Contributing Guidelines on issues?
- [X] I have read the [Contributing Guidelines on issues](https://github.com/stoneatom/stonedb/blob/stonedb-5.7-dev/CONTRIBUTING.md).
### Ple…
-
### Have you read the Contributing Guidelines on issues?
- [X] I have read the [Contributing Guidelines on issues](https://github.com/stoneatom/stonedb/blob/stonedb-5.7-dev/CONTRIBUTING.md).
### Ple…
-
### Have you read the Contributing Guidelines on issues?
- [X] I have read the [Contributing Guidelines on issues](https://github.com/stoneatom/stonedb/blob/stonedb-5.7-dev/CONTRIBUTING.md).
###…
-
**Is your feature request related to a problem? Please describe.**
No issue has been assigned at the moment, we need to evaluate whether we should follow up the latest version first~
**Describ…