unsupported Scan

こんなエラーが出たら

sql: Scan error on column index x, name "updated_at": unsupported Scan, storing driver.Value type <nil> into type *time.Time

null パッケージを使う

import (
    "gopkg.in/guregu/null.v3"
    "time"
)

type Hoge struct {
    Id             int64 
    Hoge           string
    CreatedAt      time.Time
    UpdatedAt      null.Time
    DeletedAt      null.Time
}

代入は、キャストして

Hoge.UpdatedAt = null.TimeFrom(time.Now())