set names utf8;
drop table if exists t1;
CREATE TABLE `t1` (
  `id` int(11) NOT NULL,
  `word` varchar(50) collate utf8_unicode_ci NOT NULL,
  `intval` int not null,
  UNIQUE KEY `word_id_key` (`word`,`id`),
  KEY `id_key` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

INSERT INTO t1 (id, word, intval)  VALUES (1,'ＤＤＤ',0);
DELETE FROM t1 ;
INSERT INTO t1 (id, word, intval)  VALUES  (1,'DDD',0) ;