fixes #2428

db/migrate/20150705014135_add_is_deleted_to_comments.rb

@@ -0,0 +1,6 @@
+class AddIsDeletedToComments < ActiveRecord::Migration
+  def change
+    execute "set statement_timeout = 0"
+    add_column :comments, :is_deleted, :boolean, :null => false, :default => false
+  end
+end