AddCollectionField()

This operation adds a new field to an existing collection schema.

func (c *Client) AddCollectionField(ctx context.Context, opt AddCollectionFieldOption, callOpts ...grpc.CallOption) error

Request Syntax

option := milvusclient.NewAddCollectionFieldOption(collectionName, field)

err := client.AddCollectionField(ctx, option)

PARAMETERS:

• collectionName (string)

  The name of the target collection.

• field (*entity.Field)

  The field.

RETURN TYPE:

error

RETURNS:

Returns nil on success, or an error describing what went wrong.

EXCEPTIONS:

• error

  Check err != nil for failure details.

Example

import (
    "context"
    "log"

    "github.com/milvus-io/milvus/client/v2/entity"
    "github.com/milvus-io/milvus/client/v2/milvusclient"
)

ctx, cancel := context.WithCancel(context.Background())
defer cancel()

milvusAddr := "127.0.0.1:19530"

cli, err := milvusclient.New(ctx, &milvusclient.ClientConfig{
    Address: milvusAddr,
})
if err != nil {
    log.Fatal("failed to connect to milvus server: ", err.Error())
}

defer cli.Close(ctx)

// the field to add
// must be nullable for now
newField := entity.NewField().WithName("new_field").WithDataType(entity.FieldTypeInt64).WithNullable(true)

err = cli.AddCollectionField(ctx, milvusclient.NewAddCollectionFieldOption("customized_setup_2", newField))
if err != nil {
    // handle error
}