**Describe the bug**

Table schema:
> mysql> show create table name\G
> 
> *************************** 1. row ***************************
>        Table: name
> Create Table: CREATE TABLE `name` (
>   `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
>   `username` varchar(40) DEFAULT NULL,
>   `1m_10m` smallint(6) DEFAULT NULL,
>   PRIMARY KEY (`id`)
> ) ENGINE=InnoDB AUTO_INCREMENT=178 DEFAULT CHARSET=latin1

When doing DB creation:

>  CREATE DATABASE clickhouse_test ENGINE = MaterializeMySQL('192.168.153.132:3306', 'clickhouse_test', 'root', 'password');

Got error message:

> Code: 62. DB::Exception: Received from 192.168.153.132:9000. DB::Exception: Syntax error: failed at position 80 ('1m_10m'): 1m_10m) VALUES. Wrong number.

const Field & value = row_data[column_index];
                if (write_data_to_null_map(value, index))
                {
                    if (value.getType() == Field::Types::UInt64)
                        casted_int32_column->insertValue(value.get<Int32>());
                    else if (value.getType() == Field::Types::Int64)
                    {
                        
                        const Int32 & num = value.get<Int32>();
                        casted_int32_column->insertValue(num & 0x800000 ? num | 0xFF000000 : num);
                    }
                    else
                        throw Exception("LOGICAL ERROR: it is a bug.", ErrorCodes::LOGICAL_ERROR);
                }
            }
        }
        else if (ColumnString * casted_string_column = typeid_cast<ColumnString *>(&column_to))
        {
            for (size_t index = 0; index < rows_data.size(); ++index)
            {
                const Tuple & row_data = DB::get<const Tuple &>(rows_data[index]);
                const Field & value = row_data[column_index];
                if (write_data_to_null_map(value, index))
                {
                    const String & data = value.get<const String &>();
                    casted_string_column->insertData(data.data(), data.size());
                }
            }
        }
        else if (ColumnFixedString * casted_fixed_string_column = typeid_cast<ColumnFixedString *>(&column_to))