From: Craig Demyanovich <cdemyanovich@...>
Date: 2008-06-11T21:05:40+09:00
Subject: Re: Delete Duplicates

I don't know of any built-in task that already does that. Thus, you'll have to:

* Figure out how to detect duplicates in your data.
* Write some code to detect and delete the duplicates.
* Write a rake task to call the code that you wrote in the previous step.
* Run the rake task.

Good luck,
Craig