我试图了解 EL 中的查询是如何工作的，说实话有很多问题。
这是我的具有属性的文档:
{"statusError":null,
"fileHash":"da8620bad21685c5e385fb1b43a7e744",
"project":{"id":7687},
"error":null,
"ocrFile64":"JVBERi0xL...."
"isInElastic":false,
"originalName":"test.pdf",
"lastUpdated":"2018-10-18T12:47:59Z",
"dateCreated":"2018-10-18T12:40:19Z",
"ocrAvailable":true,
"attachment":{"date":"2018-07-05T07:20:06Z",
"content_type":"application/pdf",
"language":"en","title":"Untitled",
"content":"blah blah blahblahblahblahblah"
"company":{"id":1},
"id":25850,
"tag":[{"id":3},{"id":2}],
"contentType":"application/pdf",
"imageHash":"",
"label":null,
"size":47680,
"user":{"id":7563},
"md5":[100,97,56,54,50,48,98,97,100,50,49,54,56,53,99,53,101,51,56,53,102,98,49,98,52,51,97,55,101,55,52,52],
"status":{"name":"CLASSIFIED"}}
EL 安装了 Ingest Module 插件，用于上传文件内容。事实上，管道是 ocrFile64 并且文件的内容位于内容属性内。
我想做的事情非常简单，我想进行如下查询:给我所有原始名称包含“test”且user.id等于1且内容包含“blah”的文档。
到目前为止我已经写了这个:
client = new RestHighLevelClient(builder)
SearchRequest searchRequest = new SearchRequest("testEL")
searchRequest.types("test")
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder()
searchSourceBuilder.timeout(new TimeValue(60, TimeUnit.SECONDS))
BoolQueryBuilder boolQuery = new BoolQueryBuilder();
boolQuery.filter(new MatchPhrasePrefixQueryBuilder("originalName", "test"))
boolQuery.filter(new NestedQueryBuilder("user", new MatchQueryBuilder("user.id", "1"), ScoreMode.None))
boolQuery.filter(new MatchPhrasePrefixQueryBuilder("content", "blah"))
searchSourceBuilder.query(boolQuery)
searchRequest.source(searchSourceBuilder)
SearchResponse searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
如果我只查询orignalName，它就可以工作。如果我不再添加内容，如果我添加嵌套查询，则会导致错误:
org.elasticsearch.ElasticsearchStatusException: Elasticsearch exception [type=search_phase_execution_exception, reason=all shards failed]
谢谢
这里是映射:
{
"mapping": {
"test": {
"properties": {
"attachment": {
"properties": {
"content": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
},
"content_length": {
"type": "long"
},
"content_type": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
},
"date": {
"type": "date"
},
"language": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
},
"title": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
}
}
},
"company": {
"properties": {
"id": {
"type": "long"
}
}
},
"contentType": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
},
"dateCreated": {
"type": "date"
},
"fileHash": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
},
"id": {
"type": "long"
},
"imageHash": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
},
"isClassified": {
"type": "boolean"
},
"isInElastic": {
"type": "boolean"
},
"label": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
},
"lastUpdated": {
"type": "date"
},
"md5": {
"type": "long"
},
"ocrAvailable": {
"type": "boolean"
},
"ocrFile64": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
},
"originalName": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
},
"project": {
"properties": {
"id": {
"type": "long"
}
}
},
"size": {
"type": "long"
},
"status": {
"properties": {
"enumType": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
},
"name": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
}
}
},
"storageName": {
"type": "text",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
},
"tag": {
"properties": {
"id": {
"type": "long"
}
}
},
"user": {
"properties": {
"id": {
"type": "long"
}
}
}
}
}
}
}
最佳答案
Elasticsearch 正在提示，因为您的 "user" 字段不是 nested 类型字段。您可以对“user.id”使用标准match或term查询。
JSON 查询看起来像这样:
POST <your_index>/_search
{
"query": {
"bool": {
"must": [
{
"match": {
"originalName": "test"
}
},
{
"match": {
"user.id": 1
}
},
{
"match": {
"content": "blah"
}
}
]
}
}
}
关于java - 使用 Java API 的 BoolQuery 中的 NestedQuery，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/52994979/