bradphelan/rocket_tag — pull request #22 by zentrification (2012-07-06 22:03:57+00:00)
Title: Fix for issue #21, postgresql group by issue

this allows the tagged_with and tags ClassMethods to function properly on postgresql, tested on 9.1.3

https://github.com/bradphelan/rocket_tag/issues/21
added a simple fix to group_by_all_columns to include the columns 'taggings.id' and 'tags.id'