High Availability MySQL - Proxy as dual Master tool

[Mark Conlin]

The High Availability MySQL book states MySQL Proxy could be used to read from two masters and write to a single slave.

Has anyone actually done this?

This would certainly solve my problems and I am hoping to implement just such a strategy.

I am assuming you would be essentially reading from two binary logs and combining them into one. The target DB could have two different schemas to prevent table name and update collisions.

Any thoughts would be much appreciated. I have read the use case list for MySQL proxy and I dont see this listed.