弹性搜索聚合不返回数据

Question

It possible that aggregate function returns data instead of count?

Right now I get:

array (size=3)
'doc_count_error_upper_bound' => int 0
'sum_other_doc_count' => int 0
'buckets' => 
array (size=2)
  0 => 
    array (size=2)
      'key' => int 15
      'doc_count' => int 2
  1 => 
    array (size=2)
      'key' => int 14
      'doc_count' => int 1

But this is useless cause I need the actual data that represents this doc_count of 2 and doc_count of 1

I'm using elastica.io

Answer 1

You can make a query like the following and use top_hits aggregations to get the document source.

{
    "aggs": {
        "terms_aggregation": {
            "terms": {
                "field": "anyfield",
                "size": 10
            },
            "aggs": {
                "gruped_result": {
                    "top_hits": {
                        "size": 100
                    }
                }
            }
        }
    }
}

I think maybe something like this in your php client

$termsAgg = new Terms("anyfields");
$termsAgg->setField("anyfield");

$statsAgg = new TopHits();
$statsAgg->setSize(100);

$termsAgg->addAggregation($statsAgg);
$index = $elasticaClient->getIndex('someindex');
$buckets = $index->search($query)->getAggregation("anyfields");

I referred this example for Sub-aggregations on official page