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                # Aggregation Metadata(聚合元數據) 原文鏈接 : [https://www.elastic.co/guide/en/elasticsearch/reference/5.4/agg-metadata.html](https://www.elastic.co/guide/en/elasticsearch/reference/5.4/agg-metadata.html) 譯文鏈接 : [Aggregation Metadata(聚合元數據)](/pages/viewpage.action?pageId=10030356) 貢獻者 : [程威](/display/~chengwei),[ApacheCN](/display/~apachecn),[Apache中文網](/display/~apachechina) 您可以將一條元數據與請求時的各個聚合相關聯,并一起返回。 考慮這個例子,我們想將顏色藍色與我們的?**terms?**聚合相關聯。 ``` curl -XGET 'localhost:9200/twitter/tweet/_search?pretty' -H 'Content-Type: application/json' -d' { "size": 0, "aggs": { "titles": { "terms": { "field": "title" }, "meta": { "color": "blue" } } } } ' ``` ``` 那么這個元數據將被返回到我們的標題術語聚合 ``` ``` { "aggregations": { "titles": { "meta": { "color" : "blue" }, "doc_count_error_upper_bound" : 0, "sum_other_doc_count" : 0, "buckets": [ ] } }, ... } ```
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