MySQL de duplication query only keeps one latest record

demand ：MySQL De duplication query only keeps the latest record

Table structure and initial data are as follows SQL file ：

-- MySQL dump 10.13 Distrib 8.0.28, for Linux (x86_64)
--
-- Host: localhost Database: test01
-- ------------------------------------------------------
-- Server version 8.0.28-0ubuntu0.20.04.3

/*!40101 SET @[email protected]@CHARACTER_SET_CLIENT */;
/*!40101 SET @[email protected]@CHARACTER_SET_RESULTS */;
/*!40101 SET @[email protected]@COLLATION_CONNECTION */;
/*!50503 SET NAMES utf8 */;
/*!40103 SET @[email protected]@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40014 SET @[email protected]@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @[email protected]@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @[email protected]@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @[email protected]@SQL_NOTES, SQL_NOTES=0 */;

--
-- Table structure for table `MyClass`
--

DROP TABLE IF EXISTS `MyClass`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!50503 SET character_set_client = utf8mb4 */;
CREATE TABLE `MyClass` (
  `id` int NOT NULL AUTO_INCREMENT,
  `name` char(20) NOT NULL,
  `sex` int NOT NULL DEFAULT '0',
  `degree` double(16,2) DEFAULT NULL,
  `inserttime` text,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `MyClass`
--

LOCK TABLES `MyClass` WRITE;
/*!40000 ALTER TABLE `MyClass` DISABLE KEYS */;
INSERT INTO `MyClass` VALUES (1,'Tom',0,96.45,'2022-02-19 18:00:00'),(2,'Joan',0,82.99,'2022-02-19 18:20:00'),(3,'Wang',0,96.59,'2022-02-19 18:30:00'),(4,'Tom',0,96.45,'2022-02-19 17:00:00'),(5,'Joan',0,82.99,'2022-02-19 18:25:00'),(6,'Wang',0,96.59,'2022-02-19 18:35:00');
/*!40000 ALTER TABLE `MyClass` ENABLE KEYS */;
UNLOCK TABLES;
/*!40103 SET [email protected]_TIME_ZONE */;

/*!40101 SET [email protected]_SQL_MODE */;
/*!40014 SET [email protected]_FOREIGN_KEY_CHECKS */;
/*!40014 SET [email protected]_UNIQUE_CHECKS */;
/*!40101 SET [email protected]_CHARACTER_SET_CLIENT */;
/*!40101 SET [email protected]_CHARACTER_SET_RESULTS */;
/*!40101 SET [email protected]_COLLATION_CONNECTION */;
/*!40111 SET [email protected]_SQL_NOTES */;

-- Dump completed on 2022-02-20 4:35:15

SQL Statistical statements ：

# Full table scan query 
SELECT * FROM test01.MyClass;
# according to 'name' Field de duplication statistics query latest data 
SELECT * FROM test01.MyClass
WHERE 
	name in (SELECT name FROM test01.MyClass GROUP BY name)
	AND inserttime in (SELECT max(inserttime) FROM test01.MyClass GROUP BY name);

Full table scan query _ result ：

according to ’name’ Field de duplication statistics query latest data _ result ：