module ActiveRecord::Explain

def exec_explain(queries) # :nodoc:
  str = queries.map do |sql, binds|
    msg = +"EXPLAIN for: #{sql}"
    unless binds.empty?
      msg << " "
      msg << binds.map { |attr| render_bind(attr) }.inspect
    end
    msg << "\n"
    msg << connection.explain(sql, binds)
  end.join("\n")
  # Overriding inspect to be more human readable, especially in the console.
  def str.inspect
    self
  end
  str
end