// Verify dataset exists and get name
	var datasetName string

	// Verify dataset exists and get name/type
	var datasetName, datasetType string

		"SELECT name FROM dataset WHERE id = ? AND active = true",

		"SELECT name, type FROM dataset WHERE id = ? AND active = true",

	).Scan(&datasetName)

	).Scan(&datasetName, &datasetType)

	// Only structured datasets can be exported
	if datasetType != "structured" {
		sourceDB.Close()
		return output, fmt.Errorf("cannot export dataset of type '%s': only structured datasets are supported", datasetType)
	}