我有以下映射:
curl -XPUT 'http://localhost:9200/bookstore/user/_mapping' -d '
{
"user": {
"properties": {
"user_id": { "type": "integer" },
"gender": { "type": "string", "index" : "not_analyzed" },
"age": { "type": "integer" },
"age_bracket": { "type": "string", "index" : "not_analyzed" },
"current_city": { "type": "string", "index" : "not_analyzed" },
"relationship_status": { "type": "string", "index" : "not_analyzed" },
"books" : {
"type": "nested",
"properties" : {
"b_oid": { "type": "string", "index" : "not_analyzed" },
"b_name": { "type": "string", "index" : "not_analyzed" },
"bc_id": { "type": "integer" },
"bc_name": { "type": "string", "index" : "not_analyzed" },
"bcl_name": { "type": "string", "index" : "not_analyzed" },
"b_id": { "type": "integer" }
}
}
}
}
}'
现在,我尝试查询具有“性别”的用户:“男性”,购买了某个类别“bcl_name”的书:“琐事”并显示“b_name”书名。我不知何故无法让它运行。
我有查询
curl -XGET 'http://localhost:9200/bookstore/user/_search?pretty=1' -d '{
"size": 0,
"from": 0,
"query": {
"filtered": {
"query": {
"terms": {
"gender": [
"Male"
]
}
}
}
},
"facets": {
"CategoryFacet": {
"terms": {
"field": "books.b_name",
"size": 5,
"shard_size": 1000,
"order": "count"
},
"nested": "books",
"facet_filter": {
"terms": {
"books.bcl_name": [
"Trivia"
]
}
}
}
}
}'
它返回一个结果,但我不确定这是否正确。我找了一些例子,发现了这个(http://www.spacevatican.org/2012/6/3/fun-with-elasticsearch-s-children-and-nested-documents/)例如。我可以像这样重写我的查询:
curl -XGET 'http://localhost:9200/bookstore/user/_search?pretty=1' -d '{
"size": 0,
"from": 0,
"query": {
"filtered": {
"query": {
"terms": {
"gender": [
"Male"
]
}
},
"filter": {
"nested": {
"path": "books",
"query": {
"filtered": {
"query": {
"match_all": {}
},
"filter": {
"and": [
{
"term": {
"books.bcl_name": "Trivia"
}
}
]
}
}
}
}
}
}
},
"facets": {
"CategoryFacet": {
"terms": {
"field": "books.b_name",
"size": 5,
"shard_size": 1000,
"order": "count"
},
"nested": "books"
}
}
}'
这显示了不同的结果。
我,作为一个初学者,现在有点迷失了。有人可以给我提示如何解决这个问题吗?提前非常感谢!