ES批量操作

mget

GET _mget
{
  "docs": [
    {
      "_index": "product",
      "_id": "6_O5n5UBPBZCwrPtl2eL"
    },
    {
      "_index": "product",
      "_id": "7PO5n5UBPBZCwrPtl2el"
    }
  ]
}

GET product/_mget
{
  "docs": [
    {
      "_id": "6_O5n5UBPBZCwrPtl2eL"
    },
    {
      "_id": "7PO5n5UBPBZCwrPtl2el"
    }
  ]
}

GET product/_mget
{
  "ids": ["6_O5n5UBPBZCwrPtl2eL", "7PO5n5UBPBZCwrPtl2el"]
}

_source 参数可以指定要返回的字段。exclude 优先级高于include

GET product/_mget
{
  "docs": [
    {
      "_id": "6_O5n5UBPBZCwrPtl2eL",
      "_source": [
        "name",
        "price"
      ]
    },
    {
      "_id": "7PO5n5UBPBZCwrPtl2el",
      "_source": {
        "exclude": [
          "desc"
        ]
      }
    }
  ]
}

文档的四种操作类型

文档操作类型op_type ：

• INDEX ：若不存在则创建，存在则全量替换
• CREATE ：不存在则创建，存在则报错
• UPDATE ：部分更新
• DELETE ：删除文档

插入方法	特点
PUT /{index}/_create/{id}	严格创建新文档，id重复则失败，用于幂等
PUT /{index}/_doc/{id}?op_type=create	同上
PUT /{index}/_doc/{id}	若id存在则覆盖，否则创建
POST /{index}/_doc	自动生成id，始终创建新文档

// 部分更新
POST /users/_update/1
{
  "doc": {
    "age": 30,
    "status": "active"
  }
}

// 全量替换
PUT /products/_doc/101
{
  "name": "New Laptop",
  "price": 1500,
  "category": "electronics"
}

// index操作类型示例
PUT /test_index/_doc/1?op_type=index
{
  "test_field": "test2"
}

_bulk

POST /_bulk
{ "操作类型" : { "_index" : "索引名", "_id" : "文档ID", ...其他元数据 } }
{ 操作数据（如文档内容） }

POST /{index}/_bulk
{ "操作类型" : { "_index" : "索引名", "_id" : "文档ID", ...其他元数据 } }
{ 操作数据（如文档内容） }

delete 没有操作数据

POST _bulk
{"index":{"_index":"product"}}
{"name":"极米 H6 4K 版","desc":"","price":4999,"lv":"中高端","type":"智能投影仪","create_time":"2024-10-15","tags":["极米","4K 投影","哈曼卡顿音响","智能系统"]}
{"create":{"_index":"product","_id":100}}
{"name":"坚果 J10S","desc":"","price":3999,"lv":"中低端","type":"智能投影仪","create_time":"2024-11-20","tags":["坚果","1080P 投影","丹拿调音","自动校正"]}
{"update":{"_index":"product","_id":100}}
{"doc":{"desc":"坚果 J10S 智能投影仪，与丹拿联合调音，音质表现卓越。"}}
{"delete":{"_index":"product","_id":100}}

// 只看失败的结果
POST _bulk?filter_path=items.*.error