Closed
Description
[REQUIRED] Describe your environment
- Operating System version: MacOS 12.1
- Browser version: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
- Firebase SDK version: 8.10.0
- Firebase Product: firestore
[REQUIRED] Describe the problem
If a collection snapshot query doesn't have any documents, nothing is stored in the cache.
Each time we try to wait for an empty collection it has to wait for a server snapshot.
That should be a quick fix.
It's either not from cache or fromCache in the metadata is wrong.
Here's our code:
https://gist.github.com/burtonator/b9535237fd1c726960fb0fc77430160a
Maybe what's happening is that since no documents at ALL are found, the code assumes nothing is in the cache.
You should store a negative cache entry for that use case.
This is SUPER important for us because the latency is high when waiting for a server snapshot and this breaks our offline support.
Steps to reproduce:
Relevant Code:
Pseudocode is here:
https://gist.github.com/burtonator/b9535237fd1c726960fb0fc77430160a
