首先，我是c++新手；现在，我正在尝试编写一个项目来监听来自 MySQL binlog 做点什么。我选择了一个名为mysql binlog replication的库，下面是它的示例代码，现在我可以在中跟踪事件了 MySQL binlog ，检索旧值和新值。但是，我检索不到列，我想知道如何检索列和值一起，感谢任何有用的答案！
以下是我的部分代码：

while (true) {
int result = binlog.wait_for_next_event(&event);
if (result == ERR_EOF)
  break;
std::cout << "Found event of type " << event->get_event_type();
int event_type = event->get_event_type();
if (event_type == mysql::TABLE_MAP_EVENT) {
  tmev = (mysql::Table_map_event *)event;
  std::string tablename=tmev->table_name;
}
if (event_type == mysql::WRITE_ROWS_EVENT || event_type==mysql::UPDATE_ROWS_EVENT || event_type==mysql::DELETE_ROWS_EVENT) {
  mysql::Row_event *row_event = (mysql::Row_event *)event;

  mysql::Row_event_set rows(row_event, tmev);
  mysql::Row_event_set::iterator itor = rows.begin();
  do {
    mysql::Row_of_fields fields = *itor;

    mysql::Row_of_fields::iterator it = fields.begin();
    // Here,fields represent values,I have no way to get columns
    do {
      std::string out;
      converter.to(out, *it);
      std::cout << "\t" << out;
    } while (++it != fields.end());
  } while (++itor != rows.end());
}
std::cout << std::endl;