我的结构体节选
type Site1 struct {
ID string gorm:"size:25"
SerialNo uint32 gorm:"column:serialNo;not null;uniqueIndex:serialNo;autoIncrement"
Domain string gorm:"size:30;not null;uniqueIndex:domain;comment:一级域名"
Domain2 string gorm:"size:20;not null;uniqueIndex:domain;comment:二级域名"
}
因为我的表已经存在了所以没有使用gorm.Model 我执行db.AutoMigrate(&models.Site1{})后 结果如下表，多了个serialNo_2。将autoIncrement删除 问题消失
另外我还试了其它几种情况都会创建多个，执行一次db.AutoMigrate(&models.Site1{})创建一个类似，serialNo_3，serialNo_4，serialNo_5 ...
其它情况如下
SerialNo uint32 gorm:"column:serialNo;not null;unique;autoIncrement"
SerialNo uint32 gorm:"column:serialNo;not null;unique:serialNo;autoIncrement"
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