分组查询

/****************************查询总的产品、业务、服务、节点  the start ***************************/
           //分组查询包含（四级）
           $query = new Elastica\Query(new Elastica\Query\MatchAll());
           //Simple aggregation (based on tags, we get the doc_count for each tag)
           //$tagsAggregationindex = new Elastica\Aggregation\Terms('group_by_index');
           //$tagsAggregationindex->setField('_index');
           //$tagsAggregationtype = new Elastica\Aggregation\Terms('group_by_type');
           //$tagsAggregationtype->setField('_type');
           $tagsAggregation = new Elastica\Aggregation\Terms('group_by_cl');
           $tagsAggregation->setField('proj');
           $tagsAggregationiid = new Elastica\Aggregation\Terms('group_by_iid');
           $tagsAggregationiid->setField('iid');
           $tagsAggregation->addAggregation($tagsAggregationiid);
           //$tagsAggregationtype->addAggregation($tagsAggregation);
           //$tagsAggregationindex->addAggregation($tagsAggregationtype);
           //$query->addAggregation($tagsAggregationindex);
           $query->addAggregation($tagsAggregation);
           //we don't need the search results, only statistics
           $query->setSize(0);
           $es_search->setQuery($query);
           $res_search = $es_search->search();
           $aggsArr = $res_search->getAggregations();
           //echo '<pre>';
           //print_r($res_search);exit;
           //print_r($aggsArr);exit;
           /**************************** 查询总的产品、业务、服务、节点 the end ***************************/
{
   "query": {
       "match_all": {}
   },
   "aggs": {
       "lv": {
           "terms": {
               "field": "lv"
           }
       }
   },
   "size": 0
}
$query = new \Elastica\Query(new \Elastica\Query\MatchAll());
       // More complex aggregation, we get categories for each month
       $dateAggregation = new \Elastica\Aggregation\DateHistogram('dateHistogram','publishedAt','month');
       $dateAggregation->setFormat("dd-MM-YYYY");
       $categoryAggregation = new \Elastica\Aggregation\Terms('category');
       $categoryAggregation->setField("category");
       $dateAggregation->addAggregation($categoryAggregation);
       $query->addAggregation($dateAggregation);
       // we don't need any results, only the statistics
       $query->setSize(0);