presto-hive/src/main/java/io/prestosql/plugin/hive/HiveType.java/HiveType/toHiveTypes
class HiveType:    public static List<HiveType> toHiveTypes(String hiveTypes)
    {
        requireNonNull(hiveTypes, "hiveTypes is null");
        return ImmutableList.copyOf(getTypeInfosFromTypeString(hiveTypes).stream()
                .map(HiveType::toHiveType)
                .collect(toImmutableList()));
    }