HOW: Retrieve Terms aggregation's grand total of all bucket doc_counts

Elastic Stack Elasticsearch
1

Hi,

Is there an ES way to get a grand total of doc_count of all buckets of a
Terms aggregation? For instance to get 20 for the following:

{

"aggregations" : {
    "genders" : {
        "buckets" : [
            {
                "key" : "male",
                "doc_count" : 10
            },
            {
                "key" : "female",
                "doc_count" : 10
            },
        ]
    }
}

}

I am hoping of a hidden option in the query syntax that doesn't slow down
the query.

Thanks a lot.

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