Elasticsearch 版本 7.6.2
//测试自关联查询
PUT my-index
{
"settings":{
"number_of_shards":20,
"number_of_replicas":1
},
"mappings": {
"properties" : {
"my-join-field" : {
"type" : "join",
"relations": {
"extWoNbr": "wonbr" //父文档字段：子文档字段
}
}
}
}
}
POST my-index/_doc/1
{
"my-join-field":"extWoNbr", //父文档字段
"tag":"Elasticsearch",
"extWoNbr":"123"
}
POST my-index/_doc/2?routing=1 //父文档路由值
{
"my-join-field":{
"name":"wonbr",
"parent":"1" //父文档ID
},
"tag":"RRElasticsearch",
"wonbr":"123"
}
POST /my-index/_search
{
"query": {
"has_parent" : {
"parent_type": "extWoNbr",
"query" : {
"term" : {
"extWoNbr" : {
"value" : "Elasticsearch"
}
}
}
}
}
}
