Forum OpenACS Q&A: Re: Are object_id's /really/ unstable?

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Posted by Jeff Davis on
It's not upgrading that's the issue, for an upgrade of an existing site they won't change. The issue is if you try to migrate the site to a new install or merge two sites you will not be able to preserve the original site's object ids since there will inevitably be collisions.

It's an issue but not anything like as dire as you had assumed.