Firebase Realtime Database, what is a read exactly? : <p>I am aware for Cloud Firestore a read is a document (whether the documents has 5 or 50 nodes). How does this compare to the RTDB? </p>

<p>If I have a query that has a limit of 25, is this going to be 25 reads, or 25 times x amount of items in each node?</p>

<p>Cheers.</p>
