无法更新我的Rails数据库迁移中的记录

例如,我有以下迁移

class AddStatusField < ActiveRecord::Migration
  def self.up
    add_column :tasks, :status, :string
    Task.update_all "status='complete'", "completed = 't'"
    remove_column :tasks, :completed
  end
end

当我运行这个(使用 rake db:migrate )我收到以下信息

==  AddStatusField: migrating =================================================
-- add_column(:tasks, :status, :string)
   -> 0.0010s
-- update_all("status='complete'", "completed = 't'")
rake aborted!
An error has occurred, this and all later migrations canceled:

undefined method `update_all' for #<ActiveRecord::ConnectionAdapters::SQLite3Adapter:0xd3d34a8>

如果我立即再次运行迁移 update_all 电话似乎起作用了。

我使用的是Rails 2.3.5和sqlite3。

给什么?