Query on multiple embeddings of same collection

[Shivang_Garg1 (Shivang Garg)]

I have a collection having name, description and I have created embeddings for both the fields. I want to perform the vector search using both the embeddings. Is it possible to do that? I can perform search using single embedding with this

queryVector: [queryVectors],
path: "name_embeddings",
  numCandidates: 20,
  index: "index",
  limit: 10,

Can we combine the name_embeddings and description_embeddings at the same time?

[Kushagra_Kesav]

Hi @Shivang_Garg1,

Thanks for reaching out to the MongoDB Community forums

There is one workaround which is shared in this thread:

support for multiple vector embedding in one document

One approach that will work here is of creating two separate vector indexes on the two different fields, performing a query on both, and then finding an amalgamation between the two result sets Now, essentially, what you are doing is executing two vector search queries in parallel (against the two separate vector search indexes) and combining them using an algo like RRF. The query processing pipeline involves the following steps: Query Execution: For each query, the system executes the que…

Let me know if you have any further questions or concerns.

Best regards,
Kushagra

[Shivang_Garg1 (Shivang Garg)]

@Kushagra_Kesav thanks for the reply. How can I create embeddings on array type field? One of my field is of array type and the values are stored as string values only.