project

# File activerecord/lib/arel/select_manager.rb, line 132
    def project(*projections)
      # FIXME: converting these to SQLLiterals is probably not good, but
      # rails tests require it.
      @ctx.projections.concat projections.map { |x|
        STRING_OR_SYMBOL_CLASS.include?(x.class) ? Nodes::SqlLiteral.new(x.to_s) : x
      }
      self
    end