数据库迁移到媒体云rds上，评论无法显示。
问题在于默认生成评论语句会在0行开始插入数据，需要在sql_mode里面将NO_AUTO_VALUE_ON_ZERO参数取消掉
解决方案：
在rds管理界面修改参数：
将NO_AUTO_VALUE_ON_ZERO参数取消掉，不需要进行数据库的重启立即生效，但是需要重启评论服务进程！！！
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