How to query one field then order by another one in Firebase cloud Firestore?

Question

I\'m struggling to make a (not so) complex query in firebase cloud firestore.

I simply need to get all docs where the id field ==

Answer 1

same here, it is weird why can't. below is another sample. can't get the result. Hoping firebase can reply about this and update the document.

dbFireStore.collection('room').where('user_id.'+global.obj_user.user_id,'==',true).orderBy('last_update').get().then((qs)=>{
  console.log(qs);
});

using other work-around solution is javascript array and array.sort()