```
$ ~/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)

{
    throw Exception("Method insertData is not supported for " + getName(), ErrorCodes::NOT_IMPLEMENTED);
}
void ColumnMap::insert(const Field & x)
{
    const auto & map = DB::get<const Map &>(x);
    nested->insert(Array(map.begin(), map.end()));
}
void ColumnMap::insertDefault()
{
    nested->insertDefault();
}
void ColumnMap::popBack(size_t n)
{
    nested->popBack(n);
}
StringRef ColumnMap::serializeValueIntoArena(size_t n, Arena & arena, char const *& begin) const
{
    return nested->serializeValueIntoArena(n, arena, begin);
}
const char * ColumnMap::deserializeAndInsertFromArena(const char * pos)
{
    return nested->deserializeAndInsertFromArena(pos);
}
void ColumnMap::updateHashWithValue(size_t n, SipHash & hash) const
{
    nested->updateHashWithValue(n, hash);
}
void ColumnMap::updateWeakHash32(WeakHash32 & hash) const