如何将现有的 graphenedb 实例升级到最新版本?
我试过了:
heroku addons:add graphenedb --version v220
Adding graphenedb on myApp ... failed
! That type of add-on can only exist once per app and it already exists for myApp.
还是不可能,我应该将数据迁移到具有最新版本的新实例吗?
顺便说一句,我也试过了heroku addons:upgrade
。那不是我想要的!