eql?

# File activerecord/lib/arel/nodes/select_core.rb, line 52
      def eql?(other)
        self.class == other.class &&
          self.source == other.source &&
          self.set_quantifier == other.set_quantifier &&
          self.optimizer_hints == other.optimizer_hints &&
          self.projections == other.projections &&
          self.wheres == other.wheres &&
          self.groups == other.groups &&
          self.havings == other.havings &&
          self.windows == other.windows &&
          self.comment == other.comment
      end