Add index to blocked_emails for last_match_at

Author: nlalonde

db/migrate/20130807202516_add_last_match_index_to_blocked_emails.rb

@@ -0,0 +1,5 @@
+class AddLastMatchIndexToBlockedEmails < ActiveRecord::Migration
+  def change
+    add_index :blocked_emails, :last_match_at
+  end
+end