Public preview: Filtered vector search in vCore-based Azure Cosmos DB for MongoDB

Azure Cosmos DB for MongoDB has improved its vector search capabilities through the introduction of pre-filter vector search. The filter expression in the search spec can compare an indexed single path field, effectively acting as a prefilter to significantly narrow the scope of the vector search. [Learn more](https://aka.ms/cdbvectorfeatures). * Azure Cosmos DB * Features * [ Azure Cosmos DB](https://azure.microsoft.com/en-gb/products/cosmos-db/)