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



row.push_back(Field{String{val}});
                        break;
                    }
                    case MYSQL_TYPE_STRING:
                    {
                        UInt32 size = 0;
                        if (field_len < 256)
                        {
                            payload.readStrict(reinterpret_cast<char *>(&size), 1);
                        }
                        else
                        {
                            payload.readStrict(reinterpret_cast<char *>(&size), 2);
                        }
                        String val;
                        val.resize(size);
                        payload.readStrict(reinterpret_cast<char *>(val.data()), size);
                        row.push_back(Field{String{val}});
                        break;
                    }
                    case MYSQL_TYPE_BLOB:
                    {
                        UInt32 size = 0;
                        switch (meta)
                        {
                            case 1: {
                                payload.readStrict(reinterpret_cast<char *>(&size), 1);
                                break;
                            }
                            case 2: {