// TODO(coopernurse): add type-specific converter
		return driver.Null{Converter: driver.DefaultParameterConverter}
	case "datetime":
		return driver.NotNull{Converter: driver.DefaultParameterConverter}
	case "nulldatetime":
		return driver.Null{Converter: driver.DefaultParameterConverter}
	case "any":
		return anyTypeConverter{}
	}
	panic("invalid fakedb column type of " + typ)
}

}

func TestNullTimeParam(t *testing.T) {
	t0 := time.Time{}
	t1 := time.Date(2000, 1, 1, 8, 9, 10, 11, time.UTC)
	t2 := time.Date(2010, 1, 1, 8, 9, 10, 11, time.UTC)
	spec := nullTestSpec{"nulldatetime", "datetime", [6]nullTestRow{
		{NullTime{t1, true}, t2, NullTime{t1, true}},
		{NullTime{t1, false}, t2, NullTime{t0, false}},
		{t1, t2, NullTime{t1, true}},
		{NullTime{t1, true}, t2, NullTime{t1, true}},