# File lib/thinking_sphinx/commands/merge_and_update.rb, line 4
  def call
    configuration.preload_indices
    configuration.render

    index_pairs.each do |(core_index, delta_index)|
      command :merge,
        :core_index  => core_index,
        :delta_index => delta_index,
        :filters     => {:sphinx_deleted => 0}

      core_index.model.where(:delta => true).update_all(:delta => false)
    end
  end