我的映射如下,我正在做一个bool应该查询名称和其他属性,如下所示,但我需要的是我想要在CustomerId上响应CustomerPrices。 每个产品都有相同的CustomerIds,因此对于eaxample;
product1 -CustomerPrice( CustomerId :1234 -Price:4)
CustomerPrice( CustomerId :567-Price:5)
.
.
Product2 - CustomerPrice(CustomerId :1234 -Price:8)
CustomerPrice(CustomerId :567-Price:10)
.
.
因此,当我查询Product1时,响应应该只有customerId的customerPrice:1234
{
"Product": {
"properties": {
"CustomerPrices": {
"type": "nested",
"properties": {
"Price": {
"store": true,
"type": "float"
},
"CustomerId": {
"type": "integer"
}
}
},
"Name": {
"index": "not_analyzed",
"store": true,
"type": "string"
}
}
}
}
我尝试了以下查询,但这不是过滤嵌套对象。我猜它会过滤产品对象,因为所有产品都有customerId:1234
"query":{
"bool":{
"should":[
{
"multi_match":{
"type":"best_fields",
"query":"product 1",
"fields":[
"Name^7"]
}
},
{
"multi_match":{
"type":"best_fields",
"query":"product 1",
"operator":"and",
"fields":[
"Code^10",
"ShortDescription^6"]
}
},
{
"nested":{
"query":{
"term":{
"CustomerPrices.CustomerId":{
"value":1234
}
}
},
"path":"CustomerPrices"
}
}]
}
},
答案 0 :(得分:2)
我花了一些时间在你的问题上,因为有趣的是如何实现这一点,我现在找到的唯一解决方案是依靠 inner_hits ,它给出了匹配的确切嵌套对象上。我还停用了 _source ,它已不再使用了。
所以给出你的映射并有两个产品,如:
PUT product/Product/product1
{
"CustomerPrices": [
{
"CustomerId": 1234,
"Price": 4
},
{
"CustomerId": 567,
"Price": 5
}
],
"Name": "John"
}
PUT product/Product/product2
{
"CustomerPrices": [
{
"CustomerId": 1234,
"Price": 8
},
{
"CustomerId": 567,
"Price": 10
}
],
"Name": "Bob"
}
运行以下查询时:(使用必须只是为了查看1个结果,与一起使用也是如此)
GET product/_search
{
"_source": false,
"query": {
"bool": {
"must": [
{ "match": { "Name": "Bob"}}
],
"filter": [
{
"nested" : {
"path" : "CustomerPrices",
"score_mode" : "avg",
"query" : {
"bool" : {
"should" : [
{ "match" : {"CustomerPrices.CustomerId" : 1234}}
]
}
},
"inner_hits": {}
}
}
]
}
}
}
我能够得到结果,其中只有来自ID为1234的客户的“价格”存在:
{
"took": 5,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"skipped": 0,
"failed": 0
},
"hits": {
"total": 1,
"max_score": 0.2876821,
"hits": [
{
"_index": "product",
"_type": "Product",
"_id": "product2",
"_score": 0.2876821,
"inner_hits": {
"CustomerPrices": {
"hits": {
"total": 1,
"max_score": 1,
"hits": [
{
"_index": "product",
"_type": "Product",
"_id": "product2",
"_nested": {
"field": "CustomerPrices",
"offset": 0
},
"_score": 1,
"_source": {
"CustomerId": 1234,
"Price": 8
}
}
]
}
}
}
}
]
}
}
仅通过匹配的嵌套对象找不到返回文档部分结果的官方方法。也许我们需要告诉elasticsearch的人要考虑下一个版本。希望它可以帮到你。