啥时候可以支持@ObservedV2装饰器和@Trace装饰器

```ts
@ObservedV2
@Entity({
tableName: 'User',
})
export class User {
@Columns({
name: 'id',
type: ColumnType.INTEGER,
isPrimaryKey: true,
autoincrement: true
})
id: number | null = null;

@Columns({ name: 'age', type: ColumnType.INTEGER })
age: number = 0

@Trace
@Columns({ name: 'name', type: ColumnType.TEXT })
name: string = ''

constructor(age: number, name: string) {
this.age = age;
this.name = name;
}
}
```

查看log发现没有创建表的时候没有name列