[Enhancement]: sql_mode的行为与多租户有关系

[dengn]

Is there an existing issue about this enhancement?

• I have checked the existing issues.

Describe the enhancement.

https://docs.matrixorigin.cn/dev/MatrixOne/Reference/Variable/system-variables/sql-mode/

sql_mode的设置需要在单租户里面生效。需要在文档里面说明一下。