Adding missing database indexes for foreign keys and STI fields.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2928 e93f8b46-1217-0410-a6f0-8f06a7374b81

db/migrate/20091017213113_add_missing_indexes_to_enumerations.rb

@@ -0,0 +1,9 @@
+class AddMissingIndexesToEnumerations < ActiveRecord::Migration
+  def self.up
+    add_index :enumerations, [:id, :type]
+  end
+
+  def self.down
+    remove_index :enumerations, :column => [:id, :type]
+  end
+end