astropy/astropy — pull request #3185 by bsipocz (2014-12-07 20:20:03+00:00)
Title: Adding table unique method

This PR adds the ``table.unique`` method following the suggestions in #3001. There is place for improvements as masked columns are not checked for uniqueness, however I think it would be nice to have this in for 1.0 even with this limitation.

closes #3001.