How do you provide custom types for columns which don't exist on a table?

[hhsnopek]

Is it possible, within the sqlc config, to reference a column that is not present on a database table but that's returned by a statement?

I have a handful of go enums that are not an Enum type in my Postgres DB, in my example below how can I override the type for GoEnumValue with a package type?

sqlc playground example

const getAuthorWithEventData = `-- name: GetAuthorWithEventData :one
SELECT DISTINCT ON (authors.id)
	authors.id,
	authors.name,
	authors.bio,
	CASE
		WHEN author_event.text = 'go-enum-foo' THEN 'foo'
		WHEN author_event.text = 'go-enum-bar' THEN 'foobar'
		ELSE 'baz'
	END AS go_enum_value
FROM authors
INNER JOIN author_event	ON author_event.author_id = author.id
WHERE authors.id = $1
`

type GetAuthorWithEventDataRow struct {
	ID          uuid.UUID
	Name        string
	Bio         sql.NullString
	GoEnumValue interface{}
}

func (q *Queries) GetAuthorWithEventData(ctx context.Context, id uuid.UUID) (GetAuthorWithEventDataRow, error) {
	row := q.db.QueryRowContext(ctx, getAuthorWithEventData, id)
	var i GetAuthorWithEventDataRow
	err := row.Scan(
		&i.ID,
		&i.Name,
		&i.Bio,
		&i.GoEnumValue,
	)
	return i, err
}