简介
查询 DSL 中加上"version":true即可，例如：
GET student/_search
{
"query": {
"match": {
"age": "12"
}
},
"version": true
}
示例
创建索引：
PUT student
{
"mappings" : {
"properties" : {
"name" : {
"type" : "keyword"
},
"age" : {
"type" : "integer"
}
}
}
}
使用 _bulk 创建文档
POST _bulk
{ "index" : { "_index" : "student", "_id" : "1" } }
{ "name" : "张三", "age": 12}
{ "index" : { "_index" : "student", "_id" : "2" } }
{ "name" : "李四", "age": 10 }
{ "index" : { "_index" : "student", "_id" : "3" } }
{ "name" : "王五", "age": 11 }
{ "index" : { "_index" : "student", "_id" : "4" } }
{ "name" : "陈六", "age": 11 }
查询 DSL 中加上"version":true即可 ：
GET student/_search
{
"query": {
"match": {
"age": "12"
}
},
"version": true
}
响应：
{
"took" : 0,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 1,
"relation" : "eq"
},
"max_score" : 1.0,
"hits" : [
{
"_index" : "student",
"_type" : "_doc",
"_id" : "1",
"_version" : 1, # 这里显示了 _version
"_score" : 1.0,
"_source" : {
"name" : "张三",
"age" : 12
}
}
]
}
}