Question

我一直在使用mysql 5.6开发一个应用程序，现在我必须在使用mysql 5.5的生产服务器上安装它。问题是通过mysqldump生成的备份似乎不向后兼容。

因为我无法在任何机器中更改mysql版本。我正在寻找一种导出5.5的向后兼容性数据的方法，或者从5.6导入数据的方法。

我遇到的错误是：

    private List<int> getTimeGapIndexEndPoints(double maxTimeGapSeconds)
    {

        int x = 1;

        List<int> timeLapsIndexes = new List<int>();

        for (int i = 0; i < trackerData[trackerId].currentList.Count(); i++)
        {
            if (x < trackerData[trackerId].currentList.Count())
            {
                DateTime t1 = trackerData[trackerId].currentList[i].TimeStamp;
                DateTime t2 = trackerData[trackerId].currentList[x++].TimeStamp;
                TimeSpan duration = t2.Subtract(t1);

                if (duration.TotalSeconds > maxTimeGapSeconds)
                {
                    // MessageBoxResult resultb = System.Windows.MessageBox.Show(this, "After index: "+i+" "+duration+" Duration for trackerId: " + trackerId + " exceed " + maxTimeGapSeconds);
                    timeLapsIndexes.Add(i);
                }
            }
        }

        return timeLapsIndexes;
        //for (int j = 0; j < timeLapsIndexes.Count(); j++)
        //{
        //    MessageBoxResult resultNumbers = System.Windows.MessageBox.Show(this, "After Index (i+1): " + timeLapsIndexes[j] + " for trackerId: " + trackerId);
        //}
    }

有问题的代码是：

ERROR 1064 (42000) at line 105: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '(6) DEFAULT NULL,
   `is_superuser` tinyint(1) NOT NULL,
   `username` varchar(30)' at line 4

问题似乎是-- -- Table structure for table `auth_user` -- DROP TABLE IF EXISTS `auth_user`; /*!40101 SET @saved_cs_client = @@character_set_client */; /*!40101 SET character_set_client = utf8 */; CREATE TABLE `auth_user` ( `id` int(11) NOT NULL AUTO_INCREMENT, `password` varchar(128) NOT NULL, `last_login` datetime(6) DEFAULT NULL, `is_superuser` tinyint(1) NOT NULL, `username` varchar(30) NOT NULL, `first_name` varchar(30) NOT NULL, `last_name` varchar(30) NOT NULL, `email` varchar(254) NOT NULL, `is_staff` tinyint(1) NOT NULL, `is_active` tinyint(1) NOT NULL, `date_joined` datetime(6) NOT NULL, PRIMARY KEY (`id`), UNIQUE KEY `username` (`username`) ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8; /*!40101 SET character_set_client = @saved_cs_client */;，mysql 5.5不接受

Answer 1

我最终在备份文件中替换了datetime(6)的{{1}}的所有外观。

暂时工作正常。

将架构备份从MySQL 5.6恢复到5.5

1 个答案: