What does AREL stand for? I couldn't find what's the meaning of this acronym anywhere.
This? https://github.com/nkallen/arel "A RELational algebra"
See also: http://magicscalingsprinkles.wordpress.com/2010/01/28/why-i-wrote-arel/ http://web.archive.org/web/20120718093140/http://magicscalingsprinkles.wordpress.com/2010/01/28/why-i-wrote-arel/