**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.

{
    DatabasePtr database = DatabaseCatalog::instance().getDatabase(database_name);
    if (DatabaseMaterializeMySQL * database_materialize = typeid_cast<DatabaseMaterializeMySQL *>(database.get()))
        return *database_materialize;
    throw Exception("LOGICAL_ERROR: cannot cast to DatabaseMaterializeMySQL, it is a bug.", ErrorCodes::LOGICAL_ERROR);
}
MaterializeMySQLSyncThread::~MaterializeMySQLSyncThread()
{
    try
    {
        stopSynchronization();
    }
    catch (...)
    {
        tryLogCurrentException(__PRETTY_FUNCTION__);
    }
}
static String checkVariableAndGetVersion(const mysqlxx::Pool::Entry & connection)