I have data set up like this:

Tasks:{

  Group 1:{

    pushid1:{

      date: 18921949021,

      title: Do something

    },

    pushid2:{

      date: 18921949021,

      title: Do something else

    }

  },

  Group 2:{

    pushid3:{

      date: 18921949021,

      title: Do another thing

    }

  }

}

I reference it by date so I only get the tasks made after a certain time.

var now = Date.now();

var taskRef = new Firebase(FB + /tasks/ + thisGroup);

taskRef.orderByChild('date').startAt(now).on(child_added, function(snap){

  console.log(snap.val());

});

This all works fine, for each group I get a warning message saying something like this:

FIREBASE WARNING: Using an unspecified index.  Consider adding .indexOn: date at tasks/Group 1 to your security rules for better performance

How do I add that to my security rules? I can't add one for each group a user makes, is there a wild card entry of some type?