go-gorm，postgres:简单插入返回错误

import (
    "github.com/jinzhu/gorm"
    _ "github.com/jinzhu/gorm/dialects/postgres"
)

db, err := gorm.Open("postgres", "host=your_host user=your_user dbname=your_db password=your_password sslmode=disable")
if err != nil {
    // 处理数据库连接错误
}
defer db.Close()

type User struct {
    ID   uint   `gorm:"primary_key"`
    Name string `gorm:"not null"`
    Age  int    `gorm:"not null"`
}

user := User{Name: "John", Age: 25}
if err := db.Create(&user).Error; err != nil {
    // 处理插入错误
}