pydata/pandas — pull request #8197 by onesandzeroes (2014-09-06 03:17:52+00:00)
Title: ENH: Add prefix parameters for join method.

Addresses #8139. Not sure how people feel about this one, in terms of adding clutter to the api, but it *was* pretty easy to get working, so I thought I'd put this together to show what changes would need to be made. I might still need to go over `DataFrame.merge()` to see if the same arguments can be added for consistency.