具有大表的MySQL: 2查询更快，1(未使用索引)

I have two tables:

我有两个表:

CREATE TABLE `linf` (
  `ID` bigint(20) NOT NULL AUTO_INCREMENT,
  `glorious` bit(1) DEFAULT NULL,
  `limad` varchar(127) COLLATE utf8_bin DEFAULT NULL,
  `linfDetails_id` bigint(20) DEFAULT NULL,
  PRIMARY KEY (`ID`),
  KEY `FK242415D3B0D13C` (`linfDetails_id`),
  CONSTRAINT `FK242415D3B0D13C` FOREIGN KEY (`linfDetails_id`) REFERENCES `linfdetails` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=135111 DEFAULT CHARSET=utf8 COLLATE=utf8_bin
CREATE TABLE `lin