phpbb/phpbb — pull request #2288 by nickvergessen (2014-04-11 15:10:42+00:00)
Title: [ticket/12012] Correctly drop default value constraints

This should fix the MSSQL update from 3.0 to 3.1
@Noxwizard can you please test this and verify?

https://tracker.phpbb.com/browse/PHPBB3-12012