CosmosMongo EuclideanDistance doesn't correctly filter by score threshold (returns all results)

[jeffhandley]

AI/MEVD/test/CosmosMongoDB.ConformanceTests/CosmosMongoDistanceFunctionTests.cs

Lines 21 to 24 in 1e1bad9

	// CosmosMongo EuclideanDistance doesn't correctly filter by score threshold (returns all results).
	// This is a pre-existing bug also present in the Semantic Kernel repo.
	protected override Task TestScoreThreshold(VectorStoreCollection<int, DistanceFunctionTests<int>.SearchRecord> collection)
	=> Task.CompletedTask;

[Empiree]

Looked into this with the documentdb-local container. For L2 DocumentDB returns a distance (lower is closer), but GetScoreThresholdMatchQuery always uses $gte, so the filter keeps the far results and drops the exact match. Using $lte for EuclideanDistance fixes it, the disabled threhsold test passes with that

I have the fix ready and will open small merge request

[adamsitnik]

1.0.1 with the fix has been published to https://www.nuget.org/packages/CommunityToolkit.VectorData.AzureDocumentDB, again thank you for your fix @Empiree !