Question of Business Object Data Service

hi Expert,

Now we are doing project for CRM integration to BODS (Business object Data Service).

There is business request for deduplicate check whole CRM Business partner data base.

The data quantity is 10Million and most of them are consumer role, we prefer to clean up the BP data via BODS and in CRM we use standard account merge functionality.

but I not sure whether BODS support deduplicate check for 10M consumer and how to do it?

Is there any one had experience or idea for this request?

Br.

William.