# File lib/arel/select_manager.rb, line 205
    def insert values
      im = InsertManager.new @engine
      table = @ctx.froms
      primary_key_name = (primary_key = table.primary_key) && primary_key.name
      # FIXME: in AR tests values sometimes were Array and not Hash therefore is_a?(Hash) check is added
      primary_key_value = primary_key && values.is_a?(Hash) && values[primary_key]
      im.into table
      im.insert values
      # Oracle adapter needs primary key name to generate RETURNING ... INTO ... clause
      # for tables which assign primary key value using trigger.
      # RETURNING ... INTO ... clause will be added only if primary_key_value is nil
      # therefore it is necessary to pass primary key value as well
      @engine.connection.insert im.to_sql, 'AREL', primary_key_name, primary_key_value
    end