我在名为清单的单个索引中配置了两个文档。
库存索引映射属性如下:
{
"mappings": {
"properties": {
"type": {"type": "keyword"},
"id": {"type": "keyword"},
"sourceId": {"type": "keyword"},
"targetId": {"type": "keyword"},
"firstName": {"type": "text"},
"lastName": {"type": "text"},
"createdBy": {"type": "text"},
"p_type": {"type": "text"},
"model": {"type": "text"},
"OS": {"type": "keyword"}
}
}
}
个人资料具有以下信息
用户:
{ "type":"profile", "id" : "user1", "p_type" : "user", "firstName" : "Ashok", "lastName" : "S" }
{ "type":"profile", "id" : "user2", "p_type" : "user", "firstName" : "Arun", "lastName" : "V" }
手机:
{ "type":"profile", "id" : "mobile1", "p_type" : "mobile", "model" : "samsung", "OS" : "Android" }
{ "type":"profile", "id" : "mobile2", "p_type" : "mobile", "model" : "iPhone", "OS" : "iOS" }
p2p关系具有哪个用户使用了哪个移动信息:
{ "type":"p2p-relation", "id" : "user1-owns-mobile1", "sourceId" : "user1", "targetId" : "mobile1", "createdBy" : "admin" }
{ "type":"p2p-relation", "id" : "user1-owns-mobile2", "sourceId" : "user1", "targetId" : "mobile2", "createdBy" : "admin" }
在我们的业务案例中,我们需要检索用户拥有的android / iOS手机列表,并从客户那里获得输入。
也就是说,如果user1请求 / mymobiles?query = os == Android ,则应将其转换为ES并期望
{“ type”:“ profile”,“ id”:“ mobile1”,“ p_type”:“ mobile”,“ model”:“ samsung”,“ OS”:“ Android”}
作为结果,如果user2要求相同,则应返回空。
我尝试使用查询和布尔。但是它仅在单个文档中搜索。如何在弹性搜索中实现这一目标?
答案 0 :(得分:0)
上述模型属于多对多关系数据模型。用户可以在一段时间内为他分配许多移动电话,并且可以向一个用户分配一个移动设备。 因此,将数据模型更改为将其存储为嵌套对象。
{
"mappings": {
"properties": {
"type": {"type": "keyword"},
"id": {"type": "keyword"},
"firstName": {"type": "text"},
"lastName": {"type": "text"},
"createdBy": {"type": "text"},
"model": {"type": "text"},
"OS": {"type": "keyword"},
"mobiles" : {
"type" : "nested",
"properties" : {
"id": {"type": "keyword"},
"model": {"type": "text"},
"OS": {"type": "keyword"},
"createdBy": {"type": "text"}
}
},
"users" : {
"type" : "nested",
"properties" : {
"id": {"type": "keyword"},
"firstName": {"type": "keyword"},
"lastName": {"type": "keyword"},
"createdBy": {"type": "text"}
}
}
}}}
但是痛苦的是,每当将手机分配给用户时,我都会花更多的精力来更新两行。
数据存储如下
{ "type":"profile", "id" : "user1", "firstName" : "Ashok", "lastName" : "S", "mobiles" : [ {"id" : "uuid1", "model": "samsung", "OS" : "Android"}] }
{ "type":"profile", {"id" : "uuid1", "model": "samsung", "OS" : "Android"}, "users" : [ "id" : "user1", "firstName" : "Ashok", "lastName" : "S"] }
要回答/ mymobiles?query = os == Android,我使用了以下查询。
{
"query": {
"bool": {
"must": [
{
{ "term": {"OS": "android"} },
"nested": {
"path": "users",
"query": {
"bool": {
"must": [ {"term": {"users.id": "user1"} }]
}
}
}
}
]
}
}}
我已通过以下链接进行此操作:https://medium.com/@mena.meseha/briefly-describe-how-to-store-complex-relational-data-in-elasticsearch-f30277317b1