ClickHouse client version 21.8.4.51 (official build).

I had a problem synchronizing Nullable(Decimal(20, 8))  using the MaterializeMySQL

mysql data is  10929.00000000 

but clickhouse data is -32771294956408.94967295

Can someone help me plz



{
        auto pos = 0;
        column_meta.reserve(column_count);
        for (auto i = 0U; i < column_count; i++)
        {
            UInt16 typ = column_type[i];
            switch (typ)
            {
                case MYSQL_TYPE_DECIMAL:
                case MYSQL_TYPE_TINY:
                case MYSQL_TYPE_SHORT:
                case MYSQL_TYPE_LONG:
                case MYSQL_TYPE_NULL:
                case MYSQL_TYPE_TIMESTAMP:
                case MYSQL_TYPE_LONGLONG:
                case MYSQL_TYPE_INT24:
                case MYSQL_TYPE_DATE:
                case MYSQL_TYPE_DATETIME:
                case MYSQL_TYPE_NEWDATE:
                {
                    
                    column_meta.emplace_back(0);
                    break;
                }
                case MYSQL_TYPE_FLOAT:
                case MYSQL_TYPE_DOUBLE:
                case MYSQL_TYPE_TIMESTAMP2:
                case MYSQL_TYPE_DATETIME2:
                case MYSQL_TYPE_BLOB: