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[英]ElasticSearch Query : Query must match at least one of multiple values
[英]Elasticsearch multiple values match without analyzer
请原谅我对ElasticSearch的了解。 我有一个Elasticsearch集合,其中包含以下文档:
{
"date": "2013-12-30T00:00:00.000Z",
"value": 2,
"dimensions": {
"region": "Coimbra District"
}
}
{
"date": "2013-12-30T00:00:00.000Z",
"value": 1,
"dimensions": {
"region": "Federal District"
}
}
{
"date": "2013-12-30T00:00:00.000Z",
"value": 1,
"dimensions": {
"region": "Masovian Voivodeship"
}
}
这3个json文档在ES服务器中编制索引。 我没有提供任何分析器类型(并且不知道如何提供一个:) :)我使用弹簧数据Elasticsearch并执行以下查询来搜索区域'Masovian Voivodeship'或'Federal District'的文档:
{
"query_string" : {
"query" : "Masovian Voivodeship OR Federal District",
"fields" : [ "dimensions.region" ]
}
}
我期待它返回2次点击。 但是,它会返回所有3个文档(可能是因为第3个文档中包含了区域)。 如何修改查询以便它可以执行完全匹配并仅提供2个文档? 我使用以下方法:
QueryBuilders.queryString(<OR string>).field("dimensions.region")
我尝试过QueryBuilders.termsQuery
, QueryBuilders.inQuery
和QueryBuilders.matchQuery
(带数组),但没有运气。
有人可以帮忙吗? 提前致谢。
你可以在这里做几件事。
首先,我设置了一个没有任何显式映射或分析的索引,这意味着将使用标准分析器 。 这很重要,因为它决定了我们如何查询文本字段。
所以我开始:
DELETE /test_index
PUT /test_index
{
"settings": {
"number_of_shards": 1,
"number_of_replicas": 0
}
}
PUT /test_index/doc/1
{
"date": "2013-12-30T00:00:00.000Z",
"value": 2,
"dimensions": {
"region": "Coimbra District"
}
}
PUT /test_index/doc/2
{
"date": "2013-12-30T00:00:00.000Z",
"value": 1,
"dimensions": {
"region": "Federal District"
}
}
PUT /test_index/doc/3
{
"date": "2013-12-30T00:00:00.000Z",
"value": 1,
"dimensions": {
"region": "Masovian Voivodeship"
}
}
然后我尝试了你的查询,没有点击。 我不明白为什么你的fields
参数中有"dimensions.ga:region"
,但是当我把它改成"dimensions.region"
我得到了一些结果:
POST /test_index/doc/_search
{
"query": {
"query_string": {
"query": "Masovian Voivodeship OR Federal District",
"fields": [
"dimensions.region"
]
}
}
}
...
{
"took": 2,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"failed": 0
},
"hits": {
"total": 3,
"max_score": 0.46911472,
"hits": [
{
"_index": "test_index",
"_type": "doc",
"_id": "3",
"_score": 0.46911472,
"_source": {
"date": "2013-12-30T00:00:00.000Z",
"value": 1,
"dimensions": {
"region": "Masovian Voivodeship"
}
}
},
{
"_index": "test_index",
"_type": "doc",
"_id": "2",
"_score": 0.3533006,
"_source": {
"date": "2013-12-30T00:00:00.000Z",
"value": 1,
"dimensions": {
"region": "Federal District"
}
}
},
{
"_index": "test_index",
"_type": "doc",
"_id": "1",
"_score": 0.05937162,
"_source": {
"date": "2013-12-30T00:00:00.000Z",
"value": 2,
"dimensions": {
"region": "Coimbra District"
}
}
}
]
}
}
但是,这会返回您不想要的结果。 解决这个问题的一种方法如下:
POST /test_index/doc/_search
{
"query": {
"query_string": {
"query": "(Masovian AND Voivodeship) OR (Federal AND District)",
"fields": [
"dimensions.region"
]
}
}
}
...
{
"took": 3,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"failed": 0
},
"hits": {
"total": 2,
"max_score": 0.46911472,
"hits": [
{
"_index": "test_index",
"_type": "doc",
"_id": "3",
"_score": 0.46911472,
"_source": {
"date": "2013-12-30T00:00:00.000Z",
"value": 1,
"dimensions": {
"region": "Masovian Voivodeship"
}
}
},
{
"_index": "test_index",
"_type": "doc",
"_id": "2",
"_score": 0.3533006,
"_source": {
"date": "2013-12-30T00:00:00.000Z",
"value": 1,
"dimensions": {
"region": "Federal District"
}
}
}
]
}
}
另一种方法(我更喜欢这个)给出了相同的结果是使用匹配查询和布尔的组合应该 :
POST /test_index/doc/_search
{
"query": {
"bool": {
"should": [
{
"match": {
"dimensions.region": {
"query": "Masovian Voivodeship",
"operator": "and"
}
}
},
{
"match": {
"dimensions.region": {
"query": "Federal District",
"operator": "and"
}
}
}
]
}
}
}
这是我使用的代码:
http://sense.qbox.io/gist/bb5062a635c4f9519a411fdd3c8540eae8bdfd51
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