我对ES很新,并且正在将它用于我的新项目。首先,我为客户提供了一个简单的映射,它具有名字和姓氏,以及付款信息对象列表。如果我在SQL中执行此操作,它将类似于客户表,以及具有1:多关系的支付信息表。
以下是我正在尝试做的一个简单示例:https://gist.github.com/anonymous/6109593
我希望根据paymentInfos的嵌套数组中的任何匹配找到任何客户,即找到任何使用billingZip 10101的paymentInfo的用户。此查询不返回任何结果,我不知道为什么。任何人都可以指出我正确的方向,为什么这个查询不起作用,如果有任何变化,我可以对我的查询或映射,让它正确返回用户?
谢谢!
答案 0 :(得分:9)
应使用nested query搜索嵌套字段:
echo "Deleting old ElasticSearch index..."
curl -XDELETE 'localhost:9200/arrtest'
echo
echo "Creating new ElasticSearch index..."
curl -XPUT 'localhost:9200/arrtest/?pretty=1' -d '{
"mappings" : {
"cust2" : {
"properties" : {
"firstName" : {
"type" : "string",
"analyzer" : "string_lowercase"
},
"lastName" : {
"type" : "string",
"analyzer" : "string_lowercase"
},
"paymentInfos": {
"properties": {
"billingZip": {
"type": "string",
"analyzer": "string_lowercase"
},
"paypalEmail": {
"type": "string",
"analyzer": "string_lowercase"
}
},
"type": "nested"
}
}
}
},
"settings" : {
"analysis" : {
"analyzer" : {
"uax_url_email" : {
"filter" : [ "standard", "lowercase" ],
"tokenizer" : "uax_url_email"
},
"string_lowercase": {
"tokenizer" : "keyword",
"filter" : "lowercase"
}
}
}
}
}
'
echo
echo "Index recreation finished"
echo "Inserting one record..."
curl -XPUT 'localhost:9200/arrtest/cust2/1' -d '{
"firstName": "john",
"lastName": "smith",
"paymentInfos": [{
"billingZip": "10101",
"paypalEmail": "foo@bar.com"
}, {
"billingZip": "20202",
"paypalEmail": "foo2@bar2.com"
}]
}
'
echo
echo "Refreshing index to make new records searchable"
curl -XPOST 'localhost:9200/arrtest/_refresh'
echo
echo "Searching for record..."
curl -XGET 'localhost:9200/arrtest/cust2/_search?pretty=1' -d '{
"sort": [],
"query": {
"bool": {
"should": [],
"must_not": [],
"must": [{
"nested": {
"query": {
"query_string": {
"fields": ["paymentInfos.billingZip"],
"query": "10101"
}
},
"path": "paymentInfos"
}
}]
}
},
"facets": {},
"from": 0,
"size": 25
}'
echo