IDocumentClient - Read a partition?

Is it possible to read all documents in a partition in a single round trip?

I have tried CreateDocumentQuery, but that still seems to result in two server trips, which is less than ideal.

            var files = _documentClient.CreateDocumentQuery<TDataType>(_documentCollectionUri, new FeedOptions
            {
                PartitionKey = new PartitionKey(partitionKey.ToString()),
                MaxItemCount = 100
            }).ToList();

Note that the trips below are from a query which only has 2/3 records, paging should have had no effect.

[a-vishar]

Thank you so much for taking the time to walk me through this. I have implemented the changes we discussed and it has improved first load for users by 95%!

[ealsur]

You can avoid it warming up the caches. The first request on a Client requires the addresses to be resolved for the container you want to interact with, this happens with V2 or V3 SDK, there is no way to get those addresses without doing a request. That request happens on your first ever request to the container, not the rest.

If you do a Read for an item that does not exist on initialization (this could be when the Function App is starting or when you are creating the Singleton client), that would do the required address resolution and not impact the actual list you are doing later.