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 :_id有什么特点?
答 :
问 :_id如何使用?
答 :
# _id
# 索引
POST /id_test/_doc/1
{
"name" : "hellogood"
}
# 索引
POST /id_test/_doc/2
{
"name" : "me"
}
# 索引
POST /id_test/_doc
{
"name" : "tea"
}
# 搜索
GET /id_test/_search
{
"query" : {
"terms" : {
"_id" : [1, 2]
}
}
}
# 结果
{
"took" : 729,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 2,
"relation" : "eq"
},
"max_score" : 1.0,
"hits" : [
{
"_index" : "id_test",
"_type" : "_doc",
"_id" : "1",
"_score" : 1.0,
"_source" : {
"name" : "hellogood"
}
},
{
"_index" : "id_test",
"_type" : "_doc",
"_id" : "2",
"_score" : 1.0,
"_source" : {
"name" : "me"
}
}
]
}
}