elasticsearch - ElasticSearch has_child查询什么都找不到

Question

我有一个问题，已为对象建立索引，但是在使用has_child搜索时，什么也不返回。

映射:

父级:

$ curl -XGET 'http://localhost:9200/items/article/_mapping?pretty'
"items" : {
    "mappings" : {
        "article" : {
            "_meta" : {
                "model" : "..."
            },
            "_source" : {
                "enabled" : false,
                "includes" : [ ],
                "excludes" : [ ]
            },
            "properties" : {
                "content" : {
                    "type" : "string",
                    "store" : true,
                    "analyzer" : "app_standard",
                    "fields" : {
                        "transliterated" : {
                            "type" : "string",
                            "analyzer" : "transliteration"
                        },
                        "stemmed" : {
                            "type" : "string",
                            "analyzer" : "app_text_analyzer"
                        }
                    }
                }
                ,...
            }
        }
    }
}

子级:

$ curl -XGET 'http://localhost:9200/items/comment/_mapping?pretty'
"items" : {
    "mappings" : {
        "comment" : {
            "_meta" : {
                "model" : "..."
            },
            "_parent" : {
                "type" : "article"
            },
            "_routing" : {
                "required" : true,
                "path" : "article_id"
            },
            "_source" : {
                "enabled" : false,
                "includes" : [ ],
                "excludes" : [ ]
            },
            "properties" : {
                "article_id" : {
                    "type" : "long",
                    "store" : true
                }
                ,...
            }
        }
    }
}

父文档和子文档都存在:

上级:

$ curl -XGET 'http://localhost:9200/items/article/110700879894'

结果:

{
  "_index": "items",
  "_type": "article",
  "_id": "110700879894",
  "_version": 1,
  "found": true
}

没有路由的子节点失败:

$ curl -XGET 'http://localhost:9200/items/comment/110700879894.110700879894'

结果:

{
  "error": "RoutingMissingException[routing is required for [items]/[comment]/[110700879894.110700879894]]",
  "status": 400
}

有路由的 child :

$ curl -XGET 'http://localhost:9200/items/comment/110700879894.110700879894?parent=110700879894'

结果:

{
  "_index": "items",
  "_type": "comment",
  "_id": "110700879894.110700879894",
  "_version": 1,
  "found": true
}

但是has_child什么也没找到:

$ curl -XGET 'http://localhost:9200/items/article/_search' -d '{
  "query": {
    "has_child": {
      "type": "comment",
      "query": {
        "term": {
          "article_id": "110700879894"
        }
      }
    }
  }
}'

结果:

{
  "took": 3,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "failed": 0
  },
  "hits": {
    "total": 0,
    "max_score": null,
    "hits": []
  }
}

也有has_parent:

$ curl -XGET 'http://localhost:9200/items/comment/_search' -d '{
  "query": {
    "has_parent": {
      "type": "article",
      "query": {
        "match_all": {}
      }
    }
  }
}'

结果:

{
  "took": 232,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "failed": 0
  },
  "hits": {
    "total": 0,
    "max_score": null,
    "hits": []
  }
}

我的猜测是索引编制中有些混乱，未设置父子关系。但另一方面，发现子级路由正确。

还是我只是在做错误的查询。

如何检查 parent 的子女文件？

编辑

索引要求:

PUT http://localhost:9200/_bulk
{"index":{"_index":"items","_type":"comment","_id":"110700879894.110700879894"}}
{"article_id":"110700879894",...}

这里不应该是 parent 吗？

Answer 1

如documentation所写:

“默认情况下，_id不被索引和存储(因此，未创建)。