[英]how to search child documents with the same parent id in Elasticsearch?
mapping: 制图:
{
"mappings": {
"branch": {},
"employee": {
"_parent": {
"type": "branch"
}
}
}
}
documents of branch: 分行文件:
{ "index": { "_id": "london" }}
{ "name": "London Westminster", "city": "London", "country": "UK" }
{ "index": { "_id": "liverpool" }}
{ "name": "Liverpool Central", "city": "Liverpool", "country": "UK" }
{ "index": { "_id": "paris" }}
{ "name": "Champs Élysées", "city": "Paris", "country": "France" }
documents of employee: 员工证件:
{ "index": { "_id": 1, "parent": "london" }}
{ "name": "Alice Smith", "dob": "1970-10-24", "hobby": "hiking" }
{ "index": { "_id": 2, "parent": "london" }}
{ "name": "Mark Thomas", "dob": "1982-05-16", "hobby": "diving" }
{ "index": { "_id": 3, "parent": "liverpool" }}
{ "name": "Barry Smith", "dob": "1979-04-01", "hobby": "hiking" }
{ "index": { "_id": 4, "parent": "paris" }}
{ "name": "Adrien Grand", "dob": "1987-05-11", "hobby": "horses" }
I want to find which documents have parent id london
,I tried the following query: 我想查找哪些文档的父ID为london
,我尝试了以下查询:
{
"query":{
"has_parent":{
"type":"branch",
"query":{
"term":{
"_parent":"london"
}
}
}
}
}
but ES return no results.how to search child documents with the same parent id in Elasticsearch? 但是ES没有返回结果。如何在Elasticsearch中搜索具有相同父ID的子文档?
The has_parent
in not valid in the OP .There is no field called parent in the branch
type . has_parent
在OP中无效。 branch
类型中没有称为parent的字段。
Below is an example of valid query : 以下是有效查询的示例:
{
"query": {
"has_parent": {
"type": "branch",
"query": {
"ids": {
"values" : ["london"]
}
}
}
}
Thanks for keety's answer above.I add the java api for the query: 感谢上述keety的回答。我为查询添加了Java api:
HasParentQueryBuilder hpqb=QueryBuilders
.hasParentQuery("branch",QueryBuilders.idsQuery()
.ids("london"));
Hope it can be helpful if you have the same question. 如果您有相同的问题,希望对您有所帮助。
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