世界上并没有完美的程序,但是我们并不因此而沮丧,因为写程序就是一个不断追求完美的过程。
问 :dynamic mapping内容有哪些?都有什么作用?
答 :
问 :dynamic field mapping是如何自定映射的?
答 :
问 :dynamic field mapping如何使用?
答 :
# dynamic field mapping
POST /dynamic_field_mapping_test/_doc/1
{
"name" : "hello good",
"float" : 9.04,
"null" : null,
"boolean" : true,
"integer" : 10,
"date" : "1989-01-10",
"double" : "0.87",
"long" : "78",
"array" : [null, "89"],
"object" : {
"user" : {
"name" : "hello",
"age" : 10
}
}
}
# mapping, 可以看到与文档中描述的额不同,
# String中的数字依然是字符串类型
GET /dynamic_field_mapping_test/_mapping
# 结果
{
"dynamic_field_mapping_test" : {
"mappings" : {
"properties" : {
"array" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"boolean" : {
"type" : "boolean"
},
"date" : {
"type" : "date"
},
"double" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"float" : {
"type" : "float"
},
"integer" : {
"type" : "long"
},
"long" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"name" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"object" : {
"properties" : {
"user" : {
"properties" : {
"age" : {
"type" : "long"
},
"name" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
}
}
}
}
}
}
}
}
}