plugin=diff is not implemented.
http://yellow.ribbon.to/~tuotehhou/index.php?%2BSQLServer%2B%E3%83%91%E3%83%BC%E3%83%86%E3%82%A3%E3%82%B7%E3%83%A7%E3%83%B3%E5%88%86%E5%89%B2
plugin=diff is not implemented.