ActiveRecord+SQLite3で id という名前のカラムを入れられない

予約語か何かなのかな？
問題の箇所。idというcolumnを用意して

class StatsInit < ActiveRecord::Migration
  def self.up
    create_table :stats do |t|
      t.column :id, :string, :limit => 12, :null => false
      t.column :name, :string, :limit => 20, :null => false
      t.column :text, :string, :limit => 200, :null => false
    end
  end

  def self.down
    drop_table :stats
  end
end

createすると

class Stat < ActiveRecord::Base
end

Stat.create(
            :id => '1234556',
            :name => 'zanmai',
            :text => '肉が食べたい'
            )

エラーが出て落ちる

/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/base.rb:2313:in `remove_attributes_protected_from_mass_assignment': undefined method `debug' for nil:NilClass (NoMethodError)
        from /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/base.rb:2114:in `attributes='
        from /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/base.rb:1926:in `initialize'
        from /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/base.rb:571:in `new'
        from /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/base.rb:571:in `create'

idって名前をやめたら通った。_idとでもしてみた。