Cleaning up wp_postmeta: a question about relative vs. absolute paths

Hi there

I am migrating my blog to a new home, with a new url and actual filesystem home, and so I am trying to fix the soon-to-be broken links in teh DB.

In the wp_postmeta table, I see that _wp_attached_file and wp_attached_metadata can point to either an absolute path, or a relative one, the relative one seemingly is relative to <blog home>/wp_content/uploads

My question is: is it safe to convert an absolute path to a relative one?