Average over empty collection of nullable types throws

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    • Type: Bug
    • Resolution: Fixed
    • Priority: Unknown
    • 3.6.0
    • Affects Version/s: None
    • Component/s: None
    • None
    • 🔵 Done
    • Fully Compatible
    • Dotnet Drivers
    • Not Needed
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      1. What would you like to communicate to the user about this feature?
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      3. Which versions of the driver/connector does this apply to?

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      1. What would you like to communicate to the user about this feature? 2. Would you like the user to see examples of the syntax and/or executable code and its output? 3. Which versions of the driver/connector does this apply to?
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      See EF-227

      Driver-only repro:

      var client = new MongoClient("mongodb://localhost:27017");
var database = client.GetDatabase("db221");
database.DropCollection("Orders");

var collection = database.GetCollection<Order>("Orders");
collection.InsertOne(new Order { Id = 1 });

var value = collection.AsQueryable().Where(e => e.Id == -1).Average(e => (int?)e.Id);
Console.WriteLine(value.HasValue ? value.Value : "<null>");

public class Order
{
    public int Id { get; set; }
}

            Assignee:
            Arthur Vickers
            Reporter:
            Arthur Vickers
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              Created:
              Updated:
              Resolved: