Versions (relevant - OpenSearch/Dashboard/Server OS/Browser): OpenSearch 2.5
Describe the issue:
I have a domain with an index which contains few M of vectors.
I would like to perform approximate KNN search to one of the vectors.
For now what I am doing is to first select the document by ID , and then execute a second call to run the approximate search with the vector I fetched.
Is there a way to save this amount of time and just ask to perform KNN search by document ID?