OpenProject is the leading open source project management software.
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openproject/db/migrate/20100313171051_add_index_on...

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#-- encoding: UTF-8
#-- copyright
# OpenProject is a project management system.
#
# Copyright (C) 2012-2013 the OpenProject Team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# See doc/COPYRIGHT.rdoc for more details.
#++
class AddIndexOnIssuesNestedSet < ActiveRecord::Migration
def self.up
add_index :issues, [:root_id, :lft, :rgt]
end
def self.down
remove_index :issues, [:root_id, :lft, :rgt]
end
end