}

	DB.Create(&users)
	lastUpdatedAt := users[1].UpdatedAt

	// update with map
	DB.Model(users[1]).UpdateColumns(map[string]interface{}{"name": "update_column_02_newname", "age": 100})
	if users[1].Name != "update_column_02_newname" || users[1].Age != 100 {
		t.Errorf("user 2 should be updated with update column")
	}
	AssertEqual(t, lastUpdatedAt.UnixNano(), users[1].UpdatedAt.UnixNano())