Join (query directive)
From WandoraWiki
Description
Joins the results of inner directives by performing a cartesian product on the results of them.
Constructor
Join(Directive d1,Directive d2,...)
Notes
This directive is best used using the join method present in every directive. Calling A.join(B) will resolve to new Join(A,B). In many cases you do not need to refer to join specifically at all. Instead you may provide several directives to form method which will implicitly join them.
