StackExchange/StackExchange.DataExplorer — pull request #3 by tms (2013-07-12 02:41:40+00:00)
Title: Optionally attempt to grab [Post Link] titles for tag wiki posts

Per http://meta.stackoverflow.com/q/161063. Since the data dumps currently lack this information, it has to be enabled as a site setting to avoid conflicts with a non-compatible schema.