如何通过全局二级索引过滤golang中的dynamodb？

package main

import (
    "fmt"
    "github.com/aws/aws-sdk-go/aws"
    "github.com/aws/aws-sdk-go/aws/session"
    "github.com/aws/aws-sdk-go/service/dynamodb"
)

func main() {
    // 创建dynamodb会话
    sess := session.Must(session.NewSessionWithOptions(session.Options{
        SharedConfigState: session.SharedConfigEnable,
    }))

    // 创建dynamodb客户端
    svc := dynamodb.New(sess)

    // 构建查询参数
    params := &dynamodb.QueryInput{
        TableName: aws.String("your_table_name"), // 替换为实际的表名
        IndexName: aws.String("your_index_name"), // 替换为实际的索引名
        KeyConditions: map[string]*dynamodb.Condition{
            "your_attribute_name": {
                ComparisonOperator: aws.String("EQ"), // 替换为实际的比较操作符
                AttributeValueList: []*dynamodb.AttributeValue{
                    {
                        S: aws.String("your_filter_value"), // 替换为实际的过滤值
                    },
                },
            },
        },
    }

    // 执行查询操作
    result, err := svc.Query(params)
    if err != nil {
        fmt.Println("Query error:", err)
        return
    }

    // 处理查询结果
    for _, item := range result.Items {
        // 处理每个查询结果项
        // ...
    }
}