Object Storage Service：建立向量Index（Go SDK V2）

許可權說明

阿里雲帳號預設擁有全部許可權。阿里雲帳號下的RAM使用者或RAM角色預設沒有任何許可權，需要阿里雲帳號或帳號管理員通過RAM Policy或Bucket Policy授予操作許可權。

方法定義

func (c *VectorsClient) PutVectorIndex(ctx context.Context, request *PutVectorIndexRequest, optFns ...func(*oss.Options)) (*PutVectorIndexResult, error) 

請求參數列表

傳回值列表

範例程式碼

package main

import (
	"context"
	"flag"
	"log"

	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss"
	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss/credentials"
	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss/vectors"
)

var (
	region     string
	bucketName string
	accountId  string
	indexName  string
)

func init() {
	flag.StringVar(&region, "region", "", "The region in which the vector bucket is located.")
	flag.StringVar(&bucketName, "bucket", "", "The name of the vector bucket.")
	flag.StringVar(&accountId, "account-id", "", "The id of vector account.")
	flag.StringVar(&indexName, "index", "", "The name of vector index.")
}

func main() {
	flag.Parse()
	if len(bucketName) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, bucket name required")
	}

	if len(region) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, region required")
	}

	if len(accountId) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, accounId required")
	}

	if len(indexName) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, index required")
	}

	cfg := oss.LoadDefaultConfig().
		WithCredentialsProvider(credentials.NewEnvironmentVariableCredentialsProvider()).
		WithRegion(region).WithAccountId(accountId)

	client := vectors.NewVectorsClient(cfg)

	request := &vectors.PutVectorIndexRequest{
		Bucket:         oss.Ptr(bucketName),
		DataType:       oss.Ptr("float32"),
		Dimension:      oss.Ptr(128),
		DistanceMetric: oss.Ptr("cosine"),
		IndexName:      oss.Ptr(indexName),
		Metadata: map[string]any{
			"nonFilterableMetadataKeys": []string{"foo", "bar"},
		},
	}
	result, err := client.PutVectorIndex(context.TODO(), request)
	if err != nil {
		log.Fatalf("failed to put vector index%v", err)
	}
	log.Printf("put vector index result:%#v\n", result)
}

相關文檔

關於建立向量索引的完整範例程式碼，請參見put_vector_index.go。