通过文本字段
问题描述：
这里搜索是我的索引：通过文本字段
λ curl -XGET -u elastic:elasticpassword http://192.168.1.71:9200/test/mytype/_search?pretty -d'{"query":{"match_all":{}}}'
{
"took" : 5,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 2,
"max_score" : 1.0,
"hits" : [
{
"_index" : "test",
"_type" : "mytype",
"_id" : "2",
"_score" : 1.0,
"_source" : {
"name" : "Dio",
"age" : 10
}
},
{
"_index" : "test",
"_type" : "mytype",
"_id" : "1",
"_score" : 1.0,
"_source" : {
"name" : "Paul",
"pro" : {
"f" : "Cris",
"t" : "So"
}
}
}
]
}
}
这是一个默认映射：
λ curl -XGET -u elastic:elasticpassword http://192.168.1.71:9200/test/mytype/_mapping?pretty
{
"test" : {
"mappings" : {
"mytype" : {
"properties" : {
"age" : {
"type" : "long"
},
"name" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
我可以age场找到，但不能被name场。为什么？
λ curl -XGET -u elastic:elasticpassword http://192.168.1.71:9200/test/mytype/_search?pretty -d'{"query":{"term":{"age":10}}}'
{
"took" : 6,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 1,
"max_score" : 1.0,
"hits" : [
{
"_index" : "test",
"_type" : "mytype",
"_id" : "2",
"_score" : 1.0,
"_source" : {
"name" : "Dio",
"age" : 10
}
}
]
}
}
λ curl -XGET -u elastic:elasticpassword http://192.168.1.71:9200/test/mytype/_search?pretty -d'{"query":{"term":{"name":"Paul"}}}'
{
"took" : 5,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 0,
"max_score" : null,
"hits" : [ ]
}
}
答
问题是，您的姓名字段默认情况下与标准分析仪进行分析，这会降低字段的分辨率。您可以搜索paul或在name.keyword字段搜索Paul。