I’m using Python 3.9 and I’m able to do hybrid search (query and knn) on Elasticsearch index. I’m Also able to do simple count either query or knn. but when I try to do hybrid count (query and knn) it does not work. I don’t know what I’m doing wrong. Below are the different approach that I used.

    # Count documents matching a query
query = {
    "query": {
        "bool": {
            "must": [
                {
                    "match": {
                       "title": sentence
                    }
                }, 
                {
                    "knn": {
                        "field" : "titleVector",
                        "query_vector" : embedding_vector,
                        "similarity":1,
                        "k":7000,
                        "num_candidates":10000
                    }
                }
            ]
        }
    }
}

response = es.count(
    index="rktb_framework",
    body = query
)
print(response)