Patch Mysql2 Adapter for AR so that we don't show tables every other request

ar_patch.rb

unless Rails.env.development?
 require "active_record/connection_adapters/mysql2_adapter"

  module ActiveRecord
    module ConnectionAdapters
      class Mysql2Adapter < AbstractAdapter
        extend ActiveSupport::Memoizable
        memoize :tables, :pk_and_sequence_for, :columns
      end
    end
  end
end