想请问,在安装mysql的时候,看到rpm包有三个,
https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm
https://repo.mysql.com//mysql80-community-release-el7-2.noarch.rpm
https://repo.mysql.com//mysql80-community-release-el7-3.noarch.rpm
比较想知道这release-el7后的123有什么区别