```
$ ~/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)

return true;
            }
        }
        catch (...)
        {
            exception = std::current_exception();
        }
        if (!format_settings.values.interpret_expressions)
        {
            if (exception)
                std::rethrow_exception(exception);
            else
            {
                buf.rollbackToCheckpoint();
                size_t len = const_cast<char *>(token_iterator->begin) - buf.position();
                throw Exception("Cannot deduce template of expression: " + std::string(buf.position(), len), ErrorCodes::SYNTAX_ERROR);
            }
        }
        
        templates[column_idx].reset();
    }
    if (!format_settings.values.interpret_expressions)
        throw Exception("Interpreting expressions is disabled", ErrorCodes::SUPPORT_IS_DISABLED);
    
    buf.position() = const_cast<char *>(token_iterator->begin);
    std::pair<Field, DataTypePtr> value_raw = evaluateConstantExpression(ast, *context);
    Field value = convertFieldToType(value_raw.first, type, value_raw.second.get());
    
    if (value.isNull() && !type.isNullable())
    {