insert()

This operation inserts data into a specific collection.

public InsertResp insert(InsertReq request)

Request Syntax

insert(InsertReq.builder()
    .collectionName(String collectionName)
    .data(List<JsonObject> data)
    .partitionName(String partitionName)
    .build()
)

BUILDER METHODS:

• collectionName(String collectionName)

  The name of an existing collection.

• data(List<JsonObject> data)

  The data to insert into the current collection.

  The data to insert should be a gson.JsonObject that matches the schema of the current collection or a list of such dictionaries.

  The following code assumes that the schema of the current collection has two fields named id and vector. The former is the primary field and the latter is a field to hold 5-dimensional vector embeddings.

  notes

  In Java SDK versions v2.4.1 or earlier versions, the input is a fastjson.JSONObject. But fastjson is not recommended to use now because of its unsafe deserialization vulnerability. Therefore, replace fastjson with gson if you use the Java SDK of v2.4.2 or later releases.

  List<JsonObject> data = new ArrayList<>();
  
  JsonObject dict1 = new JsonObject();
  List<Float> vectorArray1 = new ArrayList<>();
  vectorArray1.add(0.37417449965222693);
  vectorArray1.add(-0.9401784221711342);
  vectorArray1.add(0.9197526367693833);
  vectorArray1.add(0.49519396415367245);
  vectorArray1.add(-0.558567588166478);
  
  dict1.addProperty("id", 1L);
  dict1.add("vector", gson.toJsonTree(vectorArray1));
  
  JsonObject dict2 = new JsonObject();
  List<Float> vectorArray2 = new ArrayList<>();
  vectorArray2.add(0.46949086179692356);
  vectorArray2.add(-0.533609076732849);
  vectorArray2.add(-0.8344432775467099);
  vectorArray2.add(0.9797361846081416);
  vectorArray2.add(0.6294256393761057);
  
  dict2.addProperty("id", 2L);
  dict2.add("vector", gson.toJsonTree(vectorArray2));
  
  data.add(dict1);
  data.add(dict2);
  

• partitionName(String partitionName)

  The name of a partition.

RETURN TYPE:

InsertResp

RETURNS:

An InsertResp object containing information about the number of inserted entities.

EXCEPTIONS:

• MilvusClientExceptions

  This exception will be raised when any error occurs during this operation.

Example

JsonObject vector = new JsonObject();
List<Float> vectorList = new ArrayList<>();
vectorList.add(1.0f);
vectorList.add(2.0f);
vector.add("vector", gson.toJsonTree(vectorList));
vector.addProperty("id", 0L);

InsertReq insertReq = InsertReq.builder()
        .collectionName("test")
        .data(Collections.singletonList(vector))
        .build();
client.insert(insertReq);