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Type:
Bug
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Resolution: Fixed
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Priority:
Unknown
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Affects Version/s: None
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Component/s: None
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None
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Fully Compatible
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Not Needed
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Summary
I found a case in which using AsQueryable() throws NRE. Driver version: 2.19.1.
How to Reproduce
I have this model:
class Model
{
public Guid NotId { get; set; }
public string Name { get; set; }
}
The query is:
var collection = database.GetCollection<Model>("models");
var query = await collection.AsQueryable()
.GroupBy(x => x.Name)
.Select(x => new Model
{
NotId = Guid.Empty,
Name = x.Key
})
.ToListAsync(); // throws NRE
Additional Background
I am using V3 guid serialization:
BsonDefaults.GuidRepresentationMode = GuidRepresentationMode.V3; BsonSerializer.RegisterSerializer(new GuidSerializer(GuidRepresentation.Standard));
Workarounds
I found two workarounds:
- Modify the projection to return anonymous type instead of Model
- Change the return type of Model.NotId to Guid?