Periodically truncate, delete or archive stale data

As more and more data is imported into CatTrack there will need to be a process by which we archive, truncate or delete stale data. Currently a lot of the data is not "interesting" such as build or test output from three months ago or the particular directory or command line that was used to execute the test. We need to identify which data we want to keep forever and import it from OLTP to OLAP schema and delete the entries from OLTP system. Otherwise we can figure out a way to reduce load from on OLTP tables by truncating/removing undesired elements.