This is a quick recipe that teaches you how to do a Cartesian product between datasets. By Cartesian product we mean taking all rows from one dataset, all rows from the other, and generate a new dataset with all the possible combinations of rows.
This particular recipe is in fact the implementation of the CAG or Community Acronym Generator as proposed by Nicholas Goodman (@nagoodman) on twitter:
@webdetails @pmalves @josvandongen How about CAG? Community Acronym Generator? A project to generate new acronyms for community projects?!
There are already several community projects around Pentaho such as CDF, CDE, or CDA. Why don't we follow Nicholas's suggestion and develop the CAG as follows: ...