我想选择数据，同时最后登录数据将在当前日期和时间发生变化。
这是我的代码和错误是2023/08/18 15：07：21连接忙碌我已经尝试更新当前日期在许多位置和仍然相同的错误.我已经试着有更多的延迟关闭和仍然相同的错误。我在数据库中的连接是好的，因为我的一些代码是工程和选择是工作，但更新当前日期不是。

// SELECT MEMBER
func SearcMember(c *fiber.Ctx) error {

    var request Models.Request
    if err := c.BodyParser(&request); err != nil {
        return err
    }

    rows, err := DBConnection.GetDB().Query(ctx, "SELECT id, login, firstname, mi, lastname, email, passwd, institution, area, internet, level, lastlogin, region, loginToken, staffId, mobileNumber, userStat, isLogin FROM members WHERE login = $1 AND passwd = $2", request.Login, request.Password)
    if err != nil {
        log.Println(err)
        return c.Status(fiber.StatusInternalServerError).SendString("Internal Server Error")
    }
    defer rows.Close()

    var Members []Models.SelectMembers

    for rows.Next() {
        var Member Models.SelectMembers
        var Institution sql.NullString
        var Area sql.NullString
        var Internet sql.NullString
        var Level sql.NullInt32
        var LastLogin sql.NullString
        var Region sql.NullInt32
        var LoginToken sql.NullString
        var StaffID sql.NullString
        var UserStatus sql.NullInt32
        var ISLogin sql.NullInt32

        err := rows.Scan(&Member.MembersID, &Member.LogIn, &Member.FullName.FirstName, &Member.FullName.MiddleName, &Member.FullName.LastName, &Member.Email, &Member.Password, &Institution, &Area, &Internet, &Level, &LastLogin, &Region, &LoginToken, &StaffID, &Member.MobileNumber, &UserStatus, &ISLogin)

        if err != nil {
            log.Println(err)
            continue
        }
        Member.Institution = Institution.String
        Member.Area = Area.String
        Member.Internet = Internet.String
        Member.Level = int(Level.Int32)
        Member.LastLogin = LastLogin.String
        Member.LoginToken = LoginToken.String
        Member.Region = int(Region.Int32)
        Member.StaffID = StaffID.String
        Member.UserStatus = int(UserStatus.Int32)
        Member.ISLogin = int(ISLogin.Int32)

        Member.Name = fmt.Sprintf("%s %s %s", Member.FullName.FirstName, Member.FullName.MiddleName, Member.FullName.LastName)
        Members = append(Members, Member)

        defer rows.Close()
        // Update the LastLogin field with the current date and time
        if LastLogin.Valid {
            currentTime := time.Now().Format("2006-01-02 15:04:05")
            // Update the lastlogin field in the database
            _, updateErr := DBConnection.GetDB().Exec(ctx, "UPDATE members SET lastlogin = $1 WHERE id = $2", currentTime, Member.MembersID)
            log.Print("Nababasa")
            if updateErr != nil {
                log.Println(updateErr)
            }
        }
    }

    return c.Status(fiber.StatusCreated).JSON(Members)
}

这是我的数据库连接

package DBConnection

import (
    "context"
    "log"

    "github.com/jackc/pgx/v4"
)

var db *pgx.Conn
var ctx = context.Background()

func InitDB() {

    conn, err := pgx.Connect(ctx, "postgres://postgres:12345@localhost:5432/crd_audit?sslmode=disable")
    if err != nil {
        log.Fatalf("Unable to connect to database: %v", err)
    }
    
    db = conn
}

func GetDB() *pgx.Conn {
    return db
}

我想选择数据，同时最后登录数据将在当前日期和时间发生变化。