title: What is the difference between "Cloud Datastore indexes" and "Cloud Firestore indexes"?
body: <p>I'm reading the documentation of GCP documentation <a href="https://cloud.google.com/datastore/docs/firestore-or-datastore" rel="nofollow noreferrer"><em>Choosing between Native Mode and Datastore Mode</em></a>.</p>
  
  <p>It explains the difference of Firestore in Native Mode (<em>Native</em>) and Firestore Data in Datastore Mode (<em>Datastore Mode</em>).</p>
  
  <p>My question is about the following quotation:</p>
  
  <blockquote>
    <p>The project will use Cloud Datastore indexes instead of Cloud Firestore indexes.</p>
  </blockquote>
  
  <p>The document above does not offer any explanation about the difference of the two index-types.</p>
  
  <p>Could you explain me about the difference, or suggest any documentation useful?</p>
  
  <p>Thanks!</p>