Need to change user ID

[Merriweather]

Due to an BB import issue, I need to update a few of my user's ids. Has anyone ever put together some MySQL queries to do this cleanly (so their posts and everything are still associated with them).

[Marco van Herwaarden]

A userid has no meaning and is only used internal. There should be no reason to change the generated id.

[Merriweather]

Well there is a reason for me to change the ID and that is why I posted my question.