如何使用Go在Elasticsearch查询中放置格式说明符？

package main

import (
    "context"
    "fmt"
    "log"

    "github.com/elastic/go-elasticsearch/v8"
    "github.com/elastic/go-elasticsearch/v8/esapi"
)

func main() {
    es, err := elasticsearch.NewDefaultClient()
    if err != nil {
        log.Fatalf("Error creating the client: %s", err)
    }

    // 假设我们要查询的日期范围是2023-01-01到2023-01-31
    startDate := "2023-01-01"
    endDate := "2023-01-31"

    // 构建查询字符串
    query := fmt.Sprintf(`{
        "query": {
            "range": {
                "timestamp": {
                    "gte": "%s",
                    "lte": "%s"
                }
            }
        }
    }`, startDate, endDate)

    // 创建搜索请求
    req := esapi.SearchRequest{
        Index: []string{"your_index_name"},
        Body:  strings.NewReader(query),
    }

    // 执行搜索请求
    res, err := req.Do(context.Background(), es)
    if err != nil {
        log.Fatalf("Error getting response: %s", err)
    }
    defer res.Body.Close()

    if res.IsError() {
        log.Fatalf("Error response: %s", res.String())
    }

    // 处理响应
    var r map[string]interface{}
    if err := json.NewDecoder(res.Body).Decode(&r); err != nil {
        log.Fatalf("Error parsing the response body: %s", err)
    }

    fmt.Println(r)
}