```
$ ~/arc/build/clickhouse/programs/clickhouse client
ClickHouse client version 21.2.1.1-arcadia.
Connecting to localhost:9000 as user default.
Connected to ClickHouse server version 21.2.1 revision 54447.

max42-dev.sas.yp-c.yandex.net :) create table t(a Tuple(UInt8, UInt8)) engine = Log()

CREATE TABLE t
(
    `a` Tuple(UInt8, UInt8)
)
ENGINE = Log

Query id: b49dbb5d-d2a9-4c99-b90e-00c60edf2103

Ok.

0 rows in set. Elapsed: 0.005 sec. 

max42-dev.sas.yp-c.yandex.net :) insert into t values ((NULL, 42))

INSERT INTO t VALUES

Query id: 318d6f3e-f3bc-467c-85ff-62da908230dd

Logical error: 'Unexpected literal type inside Array: Nothing. It's a bug'.
Aborted (core dumped)
```

This is CH similar to one from Arcadia r7788360 (~fresh master version from GH).

(you don't have to strictly follow this form)

IColumn & column,
    size_t limit,
    DeserializeBinaryBulkSettings & settings,
    DeserializeBinaryBulkStatePtr & state,
    SubstreamsCache * cache) const
{
    auto * tuple_state = checkAndGetTupleDeserializeState(state);
    auto & column_tuple = assert_cast<ColumnTuple &>(column);
    settings.path.push_back(Substream::TupleElement);
    settings.avg_value_size_hint = 0;
    for (const auto i : ext::range(0, ext::size(elems)))
    {
        settings.path.back().tuple_element_name = names[i];
        elems[i]->deserializeBinaryBulkWithMultipleStreams(column_tuple.getColumnPtr(i), limit, settings, tuple_state->states[i], cache);
    }
    settings.path.pop_back();
}
MutableColumnPtr DataTypeTuple::createColumn() const
{
    size_t size = elems.size();
    MutableColumns tuple_columns(size);
    for (size_t i = 0; i < size; ++i)
        tuple_columns[i] = elems[i]->createColumn();
    return ColumnTuple::create(std::move(tuple_columns));
}
Field DataTypeTuple::getDefault() const