I believe it just uses it under the hood, but I'm not familiar enough with relational algebra (or ARel) to know for sure. Here's a blog post from the author:

I believe it just uses it under the hood, but I'm not familiar enough with relational algebra (or ARel) to know for sure. Here's a blog post from the author: http://magicscalingsprinkles.wordpress.com/2010/01/28/why-i-wrote-arel/ http://magicscalingsprinkles.wordpress.com/2010/01/28/why-i-...