slamdata/slamengine — pull request #270 by sellout (2014-09-02 21:39:40+00:00)
Title: Implement CROSS.

Blows up memory like nobody’s business, but the semantics should be right.

* move `WorkflowBuilder.join` to the class, like other similar functions.
* adds a test and rejiggers the `joinStructure` helper function yet again.