紧急求助关于postgresql的问题，系统给出一个警告很烦人。都过来看看好吗,谢谢

[yaoyouyou]

我没天早上会对项目在线上运行的3数据库vacuum full命令维护。
以前没有的，但是最近每次都出现下面的警告。
是什么原因，怎么解决。谢谢。。。。

WARNING: Some databases have not been vacuumed in 1662544929 transactions.
Better vacuum them within 484938718 transactions,
or you may have a wraparound failure.
WARNING: Some databases have not been vacuumed in 1662545192 transactions.
Better vacuum them within 484938455 transactions,
or you may have a wraparound failure.
WARNING: Some databases have not been vacuumed in 1662545269 transactions.
Better vacuum them within 484938378 transactions,
or you may have a wraparound failure.

[yaoyouyou]

会有什么问题吗，我怕会造成数据丢失或者系统出错，那真的损失大了。最大一个数据库的记录最多也就不会超过1000万条呢。
请高手指点。