nullable vectors map to pgvector.Vector

[newhook]

Version

1.27.0

What happened?

I think nullable vectors should map to a *pgvector.Vector? The current code doesn't work for nil vectors:

Error=can't scan into dest[7]: unsupported data type: <nil>

Which seems to map the scan code for pgvector:

func (v *Vector) Scan(src interface{}) (err error) {
	switch src := src.(type) {
	case []byte:
		return v.Parse(string(src))
	case string:
		return v.Parse(src)
	default:
		return fmt.Errorf("unsupported data type: %T", src)
	}
}

Relevant log output

No response

Database schema

No response

SQL queries

No response

Configuration

No response

Playground URL

No response

What operating system are you using?

No response

What database engines are you using?

No response

What type of code are you generating?

No response