presto-mongodb/src/main/java/io/prestosql/plugin/mongodb/ObjectIdFunctions.java/ObjectIdFunctions/xxHash64
class ObjectIdFunctions:    @ScalarOperator(XX_HASH_64)
    @SqlType(StandardTypes.BIGINT)
    public static long xxHash64(@SqlType("ObjectId") Slice value)
    {
        return XxHash64.hash(value);
    }