message: Solve dead sleep problem when recv multi responses.
diff: @@ -1161,6 +1161,12 @@ static sw_inline int mysql_read_rows(mysql_client *client)
  //RecordSet end
  else if (mysql_read_eof(client, buffer, n_buf) == 0)
  {
  + if (n_buf != 9)
  + {
  + // buffer may has multi responses
  + // we can't solve it in execute function so we return
  + client->buffer->offset += 9;
  + }
  if (client->response.columns)
  {
  mysql_columns_free(client);
  