Elasticsearch聚合:如何对存储桶顺序进行排序
ES版本:1.5(Amazon Elasticsearch)
我的目标:在某个字段上具有重复数据删除功能的搜索结果。我目前正在对聚合进行一些研究,以解决重复数据删除问题。因此,我的结果是一个带有1个大小的存储桶的列表存储桶。但是,我找不到订购存储桶列表的方法。
当前查询:
curl -XGET "http://localhost:9200/myidx/product/_search?search_type=count" -d '{ "size": 2,
"query": {
"function_score": {
"field_value_factor": {
"field": "relevance",
"factor": 2.0
},
"query": { "term": { "title": "abcd" } },
"score_mode": "multiply",
"boost_mode": "multiply"
}
},
"aggs": {
"unique": {
"terms": {
"field": "groupid",
"size": 2
},
"aggs": {
"sample": {
"top_hits": {
"size": 1
}
}
}
}
}
}'
结果:
{ ..."aggregations": {
"unique": {
"doc_count_error_upper_bound": 1,
"sum_other_doc_count": 39,
"buckets": [
{
"key": 717878424,
"doc_count": 14,
"sample": {
"hits": {
"total": 14,
"max_score": 45.856163,
"hits": [
{
"_index": "myidx",
"_type": "product",
"_id": "89531",
"_score": 45.856163,
"_source": { ... }
}
]
}
}
},
{
"key": 717878423,
"doc_count": 8,
"sample": {
"hits": {
"total": 8,
"max_score": 68.78424,
"hits": [
{
"_index": "myidx",
"_type": "product",
"_id": "89517",
"_score": 68.78424,
"_source": { ... }
}
]
}
}
}
]
}
}
}
我想看到第二个存储桶,其中max_score = 68.78424为第一个。这可能吗?
如果不建议使用聚合,请告知。
回答:
是的,您可以通过在最大文档分数上添加另一个子聚合并按unique
terms
该分数对聚合进行排序来实现。
curl -XGET "http://localhost:9200/myidx/product/_search?search_type=count" -d '{ "size": 2,
"query": {
"function_score": {
"field_value_factor": {
"field": "relevance",
"factor": 2.0
},
"query": { "term": { "title": "abcd" } },
"score_mode": "multiply",
"boost_mode": "multiply"
}
},
"aggs": {
"unique": {
"terms": {
"field": "groupid",
"size": 2,
"order": {
"max_score": "desc"
}
},
"aggs": {
"max_score": {
"max": {
"script": "doc.score"
}
},
"sample": {
"top_hits": {
"size": 1
}
}
}
}
}
}'
以上是 Elasticsearch聚合:如何对存储桶顺序进行排序 的全部内容, 来源链接: utcz.com/qa/425453.html