Given the follow
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public class Thing { public List<Product> Products { get; set; } } public class MechanicalClaim { public string AuthNumber { get; set; } } public class Product { public List<MechanicalClaim> MechanicalClaims { get; set; } } [TestClass] public class UnitTest1 { // no assertions; just set slowms: 0 on mongod to view query shape [TestMethod] public void GenerateQueryForNestedAny() { var client = new MongoClient("mongodb://localhost"); var _collection = client.GetDatabase("test").GetCollection<Thing>("thing"); var _contractAuth = _collection.Find( x => x.Products != null && x.Products.Any( p => p.MechanicalClaims != null && p.MechanicalClaims.Any( m => m.AuthNumber.StartsWith("test") ) ) ).FirstOrDefault(); } }
C# Driver 2.7.3
2019-10-21T09:55:35.385-0400 I NETWORK [conn15] received client metadata from 127.0.0.1:61429 conn15: { driver: { name: "mongo-csharp-driver", version: "2.7.3.0" }, os: { type: "Windows", name: "Microsoft Windows 10.0.18362", architecture: "x86_64", version: "10.0.18362" }, platform: ".NET Core 4.6.28008.02" }
2019-10-21T09:55:35.417-0400 I COMMAND [conn15] command test.thing command: find { find: "thing", filter: { Products: { $ne: null, $elemMatch: { MechanicalClaims: { $ne: null }, MechanicalClaims.AuthNumber: /^test/s } } }, limit: 1, $db: "test", lsid: { id: UUID("501ca24f-3833-4dd9-b578-5c2c7afc90e8") } } planSummary: EOF keysExamined:0 docsExamined:0 cursorExhausted:1 numYields:0 nreturned:0 reslen:99 locks:{ Global: { acquireCount: { r: 1 } }, Database: { acquireCount: { r: 1 } }, Collection: { acquireCount: { r: 1 } } } protocol:op_msg 0ms
Query Shape
{
Products: {
$ne: null,
$elemMatch: {
MechanicalClaims: { $ne: null },
MechanicalClaims.AuthNumber: /^test/s
}
}
}
C# Driver 2.8.0
2019-10-21T09:57:34.116-0400 I NETWORK [conn17] received client metadata from 127.0.0.1:61482 conn17: { driver: { name: "mongo-csharp-driver", version: "2.8.0.0" }, os: { type: "Windows", name: "Microsoft Windows 10.0.18362", architecture: "x86_64", version: "10.0.18362" }, platform: ".NET Core 4.6.28008.02" }
2019-10-21T09:57:34.148-0400 I COMMAND [conn17] command test.thing command: find { find: "thing", filter: { Products: { $ne: null, $elemMatch: { MechanicalClaims: { $ne: null }, AuthNumber: /^test/s } } }, limit: 1, $db: "test", lsid: { id: UUID("d335de48-d269-49d7-bb52-0aab9384af67") } } planSummary: EOF keysExamined:0 docsExamined:0 cursorExhausted:1 numYields:0 nreturned:0 reslen:99 locks:{ Global: { acquireCount: { r: 1 } }, Database: { acquireCount: { r: 1 } }, Collection: { acquireCount: { r: 1 } } } protocol:op_msg 0ms
Query Shape:
{
Products: {
$ne: null,
$elemMatch: {
MechanicalClaims: { $ne: null },
AuthNumber: /^test/s
}
}
}
- is related to
-
CSHARP-2744 Consider to restore(or modify) the previously removed logic or be sure that it doesn't cause a reason of wrong nested `Any`s
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- Closed
-