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type User struct {
PassWord string `json:"passWord,omitempty" gorm:"size:32"`
}
db.AutoMigrate(&User{})
2020/09/01 16:49:21 D:/zhiming/api/main.go:65
[1.049ms] [rows:0] select * from `users`
2020/09/01 16:50:22 D:/go/pkg/mod/gorm.io/driver/mysql@v1.0.1/migrator.go:30
[60089.026ms] [rows:0] ALTER TABLE `users` MODIFY COLUMN `pass_word` varchar(32)表里有6000行数据
不指定PassWord 长度就很快，指定长度就很慢
这是正常的吗