我正在对 ElasticSearch 索引执行搜索查询，结果很奇怪。我想找到 product.id = 209349 所在的所有文档:
{
"index": "products",
"from": 0,
"size": 100,
"body": {
"query": {
"filtered": {
"filter": [
{
"term": {
"product.id": 209349
}
}
]
}
}
}
}
但是，结果返回给我一个文档，其中 product.id = 83875 .我注意到的是 product.variant.id等于 209349 ...这是怎么回事？
{
"took": 1,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"failed": 0
},
"hits": {
"total": 1,
"max_score": 1,
"hits": [
{
"_index": "products",
"_type": "product",
"_id": "UPC-83875",
"_score": 1,
"_source": {
"mpn": "UPC-83875",
"product_count": 1,
"price": "448.00",
"price_discount_amount": null,
"product": [
{
"id": 83875,
"posted_on": "2014-07-23 22:08:36",
"status_id": 3,
"sku": "23469984",
"mpn": "UPC-83875",
"name": "Laser Toner Cartridge Set Black Cyan Yellow Magenta",
"description": "",
"has_image": true,
"currency_id": 1,
"price": "448.00",
"variant": [
{
"id": 209349,
"sku": "23469984",
"name": null,
"price": "448.00",
"discount_amount": null,
"price_total": "448.00",
"has_image": false
}
]
}
]
}
}
]
}
}
这是架构:
{
"dynamic": "strict",
"properties": {
"mpn": {
"type": "string",
"index": "not_analyzed"
},
"price": {
"type": "double"
},
"price_discount_amount": {
"type": "double"
},
"product": {
"properties": {
"id": {
"type": "long"
},
"posted_on": {
"type": "date",
"format": "yyyy-MM-dd HH:mm:ss"
},
"status_id": {
"type": "long"
},
"sku": {
"type": "string",
"index": "not_analyzed"
},
"mpn": {
"type": "string",
"index": "not_analyzed"
},
"name": {
"type": "string",
"analyzer": "english"
},
"description": {
"type": "string",
"analyzer": "english"
},
"has_image": {
"type": "boolean"
},
"price": {
"type": "double"
},
"price_discount_amount": {
"type": "double"
},
"currency_id": {
"type": "long"
},
"variant": {
"properties": {
"id": {
"type": "long"
},
"sku": {
"type": "string",
"index": "not_analyzed"
},
"name": {
"type": "string",
"analyzer": "english"
},
"discount_amount": {
"type": "double"
},
"price": {
"type": "double"
},
"price_total": {
"type": "double"
},
"has_image": {
"type": "boolean"
}
}
}
}
}
}
}
编辑/解决:问题似乎是我的索引 _type被命名为product以及内部对象。所以发生的事情是 ES 匹配 <_type>.id (有点像做 *.id )它会匹配 variant.id因为它是 id字段。
使用的正确名称显然是 product.product.id最终成为完整路径。
这种行为显然是为了安抚很久以前的一些用户:https://github.com/elastic/elasticsearch/issues/3005
最佳答案
我不确定你为什么会得到那个结果(当我尝试它时它没有返回)，但你可能想尝试这样的映射，使用 nested types :
PUT /test_index
{
"mappings": {
"doc": {
"properties": {
"mpn": {
"type": "string"
},
"price": {
"type": "string"
},
"product_count": {
"type": "long"
},
"product": {
"type": "nested",
"properties": {
"currency_id": {
"type": "long"
},
"description": {
"type": "string"
},
"has_image": {
"type": "boolean"
},
"id": {
"type": "long"
},
"mpn": {
"type": "string"
},
"name": {
"type": "string"
},
"posted_on": {
"type": "string"
},
"price": {
"type": "string"
},
"sku": {
"type": "string"
},
"status_id": {
"type": "long"
},
"variant": {
"type": "nested",
"properties": {
"has_image": {
"type": "boolean"
},
"id": {
"type": "long"
},
"price": {
"type": "string"
},
"price_total": {
"type": "string"
},
"sku": {
"type": "string"
}
}
}
}
}
}
}
}
}
当我使用此映射创建索引并为您的文档编制索引时:
PUT /test_index/doc/UPC-83875
{
"mpn": "UPC-83875",
"product_count": 1,
"price": "448.00",
"price_discount_amount": null,
"product": [
{
"id": 83875,
"posted_on": "2014-07-23 22:08:36",
"status_id": 3,
"sku": "23469984",
"mpn": "UPC-83875",
"name": "Laser Toner Cartridge Set Black Cyan Yellow Magenta",
"description": "",
"has_image": true,
"currency_id": 1,
"price": "448.00",
"variant": [
{
"id": 209349,
"sku": "23469984",
"name": null,
"price": "448.00",
"discount_amount": null,
"price_total": "448.00",
"has_image": false
}
]
}
]
}
然后用了一个nested filter在我的查询中，它没有返回:
POST /test_index/_search
{
"query": {
"filtered": {
"query": {
"match_all": {}
},
"filter": {
"nested": {
"path": "product",
"filter": {
"term": {
"product.id": 209349
}
}
}
}
}
}
}
...
{
"took": 1,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"failed": 0
},
"hits": {
"total": 0,
"max_score": null,
"hits": []
}
}
但是，它被由这两个查询返回:
POST /test_index/_search
{
"query": {
"filtered": {
"query": {
"match_all": {}
},
"filter": {
"nested": {
"path": "product",
"filter": {
"term": {
"product.id": 83875
}
}
}
}
}
}
}
还有这个:
POST /test_index/_search
{
"query": {
"filtered": {
"query": {
"match_all": {}
},
"filter": {
"nested": {
"path": "product.variant",
"filter": {
"term": {
"product.variant.id": 209349
}
}
}
}
}
}
}
这是我用来测试的一些代码:
http://sense.qbox.io/gist/8f5fa6f2ced088a42b92f495c0668024b9ef19c8
关于elasticsearch - Elastic Search 搜索查询返回不正确的结果，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/29957859/