drop table

  def call
    @conn.exec(ERB.new(erb_template).result(binding))
  end

  private

  def post_initialize(args)
    @conn = Database::Adapter.conn(args)
  end

  def erb_template
    <<-SQL
      <% TABLES.each do |table| %>
        drop table <%= table %>_copy;
      <% end %>
    SQL
  end