fig2-1.png
fig2-1.png

TABLE
TREE
JSON

==!=<<=>>=innot-inarray-containsarray-contains-any

db
Timestamp
GeoPoint
FieldValue

const snapshot = await db.collection('users')
  .where('status', '==', 'active')
  .limit(20)
  .get();
fig2-2.png
fig2-2.png

~modified
+added
removed

1,000,000
1,000
99