presto-main/src/main/java/io/prestosql/type/HyperLogLogOperators.java/HyperLogLogOperators/castFromP4Hll
class HyperLogLogOperators:    @ScalarOperator(CAST)
    @SqlType(StandardTypes.HYPER_LOG_LOG)
    public static Slice castFromP4Hll(@SqlType(StandardTypes.P4_HYPER_LOG_LOG) Slice slice)
    {
        return slice;
    }