老哥来了
show CREATE table test.t1
CREATE TABLE `t1` (
`id` int(11) NOT NULL,
`name` varchar(255) DEFAULT NULL,
PRIMARY KEY (`id`) /*T![clustered_index] CLUSTERED */
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin
INSERT INTO `t1` (`id`, `name`) VALUES (1, '123456789012345611');
INSERT INTO `t1` (`id`, `name`) VALUES (2, '123456789012345612');
INSERT INTO `t1` (`id`, `name`) VALUES (3, '123123');
show CREATE table test.t2
CREATE TABLE `t2` (
`id` int(11) NOT NULL,
`name` bigint(20) DEFAULT NULL,
PRIMARY KEY (`id`) /*T![clustered_index] CLUSTERED */
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin
INSERT INTO `t2` (`id`, `name`) VALUES (1, 123456789012345611);
INSERT INTO `t2` (`id`, `name`) VALUES (2, 123456789012345611);
INSERT INTO `t2` (`id`, `name`) VALUES (3, 123123);
select t1.*,t2.* from test.t1 ,test.t2 where t1.name =t2.name