如何在es中實現以下sql查詢？

Question

我想類似的查詢以下SQL查詢：

select countryName, count(distinct(countryId)) as findCount from city group by countryName having findCount > 1 

誰知道如何在ES實現？

感謝您的回答！

Answer 1

你應該這樣做有terms聚集與min_doc_count: 2這樣

{ 
    "size": 0, 
    "aggs": { 
    "countries": { 
     "terms": { 
     "field": "countryName" 
     }, 
     "aggs": { 
     "ids": { 
      "terms": { 
      "field": "countryId", 
      "min_doc_count": 2 
      } 
     } 
     } 
    } 
    } 
} 

注意，countryName字段應該not_analyzed爲了這個工作，或者countryName場是multi-field與not_analyzed部分。