启用schema.rb中未生成的扩展名“plpgsql”。

我是RubyonRails的新手,我遇到了一个小错误,我相信你能帮我解决。

Rails无法生成 enable_extension "plpgsql" 在R.S.

我生成了这样的模型:

rails generate model CreateUsers last_name:string first_name:string birthday:date email:string password_digest:string

我跑 rails db:migrate

我得到这个作为回报

...
# It's strongly recommended that you check this file into your version control system.

ActiveRecord::Schema.define(version: 2019_01_21_134353) do

  create_table "create_users", force: :cascade do |t|
    t.string "last_name"
    t.string "first_name"
    t.date "birthdate"
    t.string "email"
    t.string "password_digest"
    t.datetime "created_at", null: false
    t.datetime "updated_at", null: false
  end

end

没有

  # These are extensions that must be enabled in order to support this database
  enable_extension "plpgsql"

我试着丢下桌子跑了

rake db:rollback

rake db:migrate

仍不包括在schema.rb中

谢谢。