twitter/scalding — pull request #39 by PlasticLizard (2012-03-24 06:56:40+00:00)
Title: Adding default value to pivot

My pivots are operating on a custom class as a value. To avoid null pointer exceptions in the next stage of the job, I needed to have a default value rather than null be inserted when columns were missing. I realize this can be done with a subsequent map, so if that is preferable I will just do that, but a default feels easier to use to me in cases like this.