弹性搜索聚合和复杂查询 [英] Elastic Search Aggregation and Complex Query
问题描述
我已经创建了索引
PUT ten2
{
"mappings": {
"documents": {
"properties": {
"title": {
"type": "text",
"fields": {
"raw": {
"type": "keyword"
}
}
},"uid": {
"type": "text",
"fields": {
"raw": {
"type": "keyword"
}
}
},
"publish_details": {
"type": "nested",
"properties": {
"environment": {
"type": "keyword"
},
"locale": {
"type": "keyword"
},
"time": {
"type": "date"
},
"version": {
"type": "integer"
}
}
}
}
}
}
}
并向其中添加文档.这是文档列表:
and added documents into it. here is the list of documents:
[{
"_index": "ten2",
"_type": "documents",
"_id": "blt69b62b48bbed1fb6_en-us",
"_source": {
"publish_details": [{
"environment": "blt603fe91adbdcff66",
"time": "2020-06-24T12:11:25.276Z",
"locale": "en-us",
"user": "bltaadab2f531206e9d",
"version": 1
},
{
"environment": "blt603fe91adbdcff66",
"time": "2020-06-24T12:11:25.276Z",
"locale": "hi-in",
"user": "bltaadab2f531206e9d",
"version": 1
}
],
"title": "Entry 1",
"uid": "blt69b62b48bbed1fb6"
}
},
{
"_index": "ten2",
"_type": "documents",
"_id": "blt69b62b48bbed1fb6_mr-in",
"_source": {
"publish_details": [{
"environment": "blt603fe91adbdcff66",
"time": "2020-06-24T12:12:35.467Z",
"locale": "mr-in",
"user": "bltaadab2f531206e9d",
"version": 1
}],
"title": "Entry 3",
"uid": "blt69b62b48bbed1fb6"
}
},
{
"_index": "ten2",
"_type": "documents",
"_id": "blt4044c5198122a3ed_en-us",
"_source": {
"publish_details": [{
"environment": "blt603fe91adbdcff66",
"time": "2020-06-24T12:10:46.430Z",
"locale": "en-us",
"user": "bltaadab2f531206e9d",
"version": 1
},{
"environment": "blt603fe91adbdcff6690",
"time": "2020-06-24T12:10:46.430Z",
"locale": "en-us",
"user": "bltaadab2f531206e9d",
"version": 1
}],
"title": "Entry 10",
"uid": "blt4044c5198122a3ed"
}
}
]我想要以下结果
[
{
"_index": "ten2",
"_type": "documents",
"_id": "blt4044c5198122a3ed_en-us",
"_source": {
"publish_details": [{
"environment": "blt603fe91adbdcff66",
"time": "2020-06-24T12:10:46.430Z",
"locale": "en-us",
"user": "bltaadab2f531206e9d",
"version": 1
},{
"environment": "blt603fe91adbdcff6690",
"time": "2020-06-24T12:10:46.430Z",
"locale": "en-us",
"user": "bltaadab2f531206e9d",
"version": 1
}],
"title": "Entry 10",
"uid": "blt4044c5198122a3ed"
}
}
]
我正在使用以下查询来获取结果
I am using the following query to get the result
GET ten2/_search
{
"query": {
"bool": {
"must": [{
"bool": {
"must_not": [{
"bool": {
"must": [{
"nested": {
"path": "publish_details",
"query": {
"term": {
"publish_details.environment": "blt603fe91adbdcff66"
}
}
}
}, {
"nested": {
"path": "publish_details",
"query": {
"term": {
"publish_details.locale": "en-us"
}
}
}
}, {
"nested": {
"path": "publish_details",
"query": {
"term": {
"publish_details.locale": "hi-in"
}
}
}
}, {
"nested": {
"path": "publish_details",
"query": {
"term": {
"publish_details.locale": "mr-in"
}
}
}
}]
}
}]
}
}
}
}
}
请帮助我查询以获得期望的结果.前两个具有相同uid的dicuemtns仅publish_details.locale是不同的.我使用must_not内的must查询来获取结果，当前我正在获取所有三个文档，但是我只想要最后一个.我有一百万个文件.
kindly help me a query to get expected result. First two dicuemtns having same uid only publish_details.locale is different.I am using must query within must_not to get result, currently I am getting all three documents but I want only last one. I have million documwnts.
推荐答案
To know more about Bool queries refer to this official documentation
为您的映射，索引数据和搜索查询添加一个有效的示例
搜索查询:
{
"query": {
"nested": {
"path": "publish_details",
"query": {
"bool": {
"must": [
{
"match": {
"publish_details.locale": "en-us"
}
}
],
"must_not": [
{
"match": {
"publish_details.environment": "blt603fe91adbdcff66"
}
},
{
"match": {
"publish_details.locale": "hi-in"
}
},
{
"match": {
"publish_details.locale": "mr-in"
}
}
]
}
},
"inner_hits": {
}
}
}
}
搜索结果:
"hits": [
{
"_index": "test",
"_type": "_doc",
"_id": "3",
"_score": 0.53899646,
"_source": {
"publish_details": [
{
"environment": "blt603fe91adbdcff66",
"time": "2020-06-24T12:10:46.430Z",
"locale": "en-us",
"user": "bltaadab2f531206e9d",
"version": 1
},
{
"environment": "blt603fe91adbdcff6690",
"time": "2020-06-24T12:10:46.430Z",
"locale": "en-us",
"user": "bltaadab2f531206e9d",
"version": 1
}
],
"title": "Entry 10",
"uid": "blt4044c5198122a3ed"
},
"inner_hits": {
"publish_details": {
"hits": {
"total": {
"value": 1,
"relation": "eq"
},
"max_score": 0.53899646,
"hits": [
{
"_index": "test",
"_type": "_doc",
"_id": "3",
"_nested": {
"field": "publish_details",
"offset": 1
},
"_score": 0.53899646,
"_source": {
"environment": "blt603fe91adbdcff6690",
"time": "2020-06-24T12:10:46.430Z",
"locale": "en-us",
"user": "bltaadab2f531206e9d",
"version": 1
}
}
]
}
}
}
}
]
To know more about inner hits refer to this documentation
上面的查询仅返回第三个文档，从而满足了搜索查询的条件.在内部匹配中，仅返回第三份文档的一部分，而与 blt603fe91adbdcff66 匹配的部分被丢弃.
The above query returns only the third document, thus satisfying the conditions of the search query. In the Inner Hits, only one part of the third document is returning, and the part which is matching blt603fe91adbdcff66 is discarded.
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