mysql have table t(a Int, b Int), 2 records: (1,1) and (2, 2), then in ck count
`select count(1) from ckdb.t ` -- 2, that's ok.
then, mysql  delete (2,2) and ck count
`select count(1) from ckdb.t ` -- still 2, that's not correct .
{
        Tuple row;
        UInt32 null_index = 0;
        UInt32 re_count = 0;
        for (auto i = 0U; i < number_columns; i++)
        {
            if (bitmap[i])
                re_count++;
        }
        re_count = (re_count + 7) / 8;
        boost::dynamic_bitset<> columns_null_set;
        readBitmap(payload, columns_null_set, re_count);
        for (auto i = 0U; i < number_columns; i++)
        {
            UInt32 field_len = 0;
            
            if (!bitmap[i])
                continue;
            if (columns_null_set[null_index])
            {
                row.push_back(Field{Null{}});
            }
            else
            {
                auto meta = table_map->column_meta[i];
                auto field_type = table_map->column_type[i];
                if (field_type == MYSQL_TYPE_STRING)
                {
                    if (meta >= 256)
                    {