Message in Chinese (Simplified) (中文(简体))
GROUP BY 子句键表达式类型必须可比较相等性。
Unlocalized message
The GROUP BY clause key expression type must be equal-comparable.
Search by GoogleGROUP BY 子句键表达式类型必须可比较相等性。
The GROUP BY clause key expression type must be equal-comparable.
Search by Google