mariadb/mysql-test/suite/jp/t/jp_alter_ucs2.test

--source include/have_ucs2.inc

--disable_warnings
DROP TABLE IF EXISTS `ｱｱｱ`;
DROP TABLE IF EXISTS `ｲｲｲ`;
DROP TABLE IF EXISTS `あああ`;
DROP TABLE IF EXISTS `いいい`;
DROP TABLE IF EXISTS `龖龖龖`;
DROP TABLE IF EXISTS `龗龗龗`;
--enable_warnings

#
# Test altering table with Japanese characters in ucs2 encoding
#

SET NAMES ujis;
SET character_set_database = ucs2;
SET collation_connection = ucs2_general_ci;

#
# Test InnoDB
#
CREATE TABLE `ｱｱｱ`(`ｷｷｷ` char(5)) DEFAULT CHARSET = ucs2 engine=INNODB;
CREATE TABLE `ｲｲｲ`(`ｹｹｹ` char(5)) DEFAULT CHARSET = ucs2 engine=INNODB;
CREATE TABLE `あああ`(`ききき` char(5)) DEFAULT CHARSET = ucs2 engine=INNODB;
CREATE TABLE `いいい`(`けけけ` char(5)) DEFAULT CHARSET = ucs2 engine=INNODB;
CREATE TABLE `龖龖龖`(`丂丂丂` char(5)) DEFAULT CHARSET = ucs2 engine=INNODB;
CREATE TABLE `龗龗龗`(`乚乚乚` char(5)) DEFAULT CHARSET = ucs2 engine=INNODB;

INSERT INTO `ｱｱｱ` VALUES ('ｱｱｱｱｱ'),('ｲｲｲｲｲ'),('ｳｳｳｳｳ');
INSERT INTO `あああ` VALUES ('あああああ'),('いいいいい'),('ううううう');
INSERT INTO `龖龖龖` VALUES ('丂丂丂丂丂'),('丄丄丄丄丄'),('丅丅丅丅丅');

# Test basic alter operation

ALTER TABLE `ｱｱｱ` ADD `ｶｶｶ` char(1) FIRST;
ALTER TABLE `ｱｱｱ` ADD `ｸｸｸ` char(1) AFTER `ｷｷｷ`;
ALTER TABLE `ｱｱｱ` ADD `ｹｹｹ` char(1);
ALTER TABLE `ｱｱｱ` ADD INDEX (`ｶｶｶ`);
ALTER TABLE `ｱｱｱ` ADD PRIMARY KEY (`ｷｷｷ`);
ALTER TABLE `ｱｱｱ` ADD UNIQUE (`ｸｸｸ`);
#Multi-byte field name is not allowed for FOREIGN KEY As of 4.1.4
#ALTER TABLE `ｱｱｱ` ADD FOREIGN KEY (`ｹｹｹ`) REFERENCES `ｲｲｲ`(`ｹｹｹ`);
ALTER TABLE `ｱｱｱ` CHANGE `ｶｶｶ` `ｶｶ` char(1);
ALTER TABLE `ｱｱｱ` MODIFY `ｷｷｷ` char(6);

SELECT * FROM `ｱｱｱ`;
DESC `ｱｱｱ`;
SHOW CREATE TABLE `ｱｱｱ`;

ALTER TABLE `ｱｱｱ` DROP INDEX `ｶｶｶ`;
ALTER TABLE `ｱｱｱ` DROP PRIMARY KEY;
ALTER TABLE `ｱｱｱ` DROP INDEX `ｸｸｸ`;
#ALTER TABLE `ｱｱｱ` DROP FOREIGN KEY `ｹｹｹ`;
ALTER TABLE `ｱｱｱ` DROP `ｶｶ`;
ALTER TABLE `ｱｱｱ` DROP `ｸｸｸ`;
ALTER TABLE `ｱｱｱ` DROP `ｹｹｹ`;
SELECT * FROM `ｱｱｱ`;
DESC `ｱｱｱ`;
SHOW CREATE TABLE `ｱｱｱ`;

ALTER TABLE `あああ` ADD `かかか` char(1) FIRST;
ALTER TABLE `あああ` ADD `くくく` char(1) AFTER `ききき`;
ALTER TABLE `あああ` ADD `けけけ` char(1);
ALTER TABLE `あああ` ADD INDEX (`かかか`);
ALTER TABLE `あああ` ADD PRIMARY KEY (`ききき`);
ALTER TABLE `あああ` ADD UNIQUE (`くくく`);
#Multi-byte field name is not allowed for FOREIGN KEY As of 4.1.4
#ALTER TABLE `あああ` ADD FOREIGN KEY (`けけけ`) REFERENCES `いいい`(`けけけ`);
ALTER TABLE `あああ` CHANGE `かかか` `かか` char(1);
ALTER TABLE `あああ` MODIFY `ききき` char(6);

SELECT * FROM `あああ`;
DESC `あああ`;
SHOW CREATE TABLE `あああ`;

ALTER TABLE `あああ` DROP INDEX `かかか`;
ALTER TABLE `あああ` DROP PRIMARY KEY;
ALTER TABLE `あああ` DROP INDEX `くくく`;
#ALTER TABLE `あああ` DROP FOREIGN KEY `けけけ`;
ALTER TABLE `あああ` DROP `かか`;
ALTER TABLE `あああ` DROP `くくく`;
ALTER TABLE `あああ` DROP `けけけ`;

SELECT * FROM `あああ`;
DESC `あああ`;
SHOW CREATE TABLE `あああ`;

ALTER TABLE `龖龖龖` ADD `丄丄丄` char(1) FIRST;
ALTER TABLE `龖龖龖` ADD `丅丅丅` char(1) AFTER `丂丂丂`;
ALTER TABLE `龖龖龖` ADD `乚乚乚` char(1);
ALTER TABLE `龖龖龖` ADD INDEX (`丄丄丄`);
ALTER TABLE `龖龖龖` ADD PRIMARY KEY (`丂丂丂`);
ALTER TABLE `龖龖龖` ADD UNIQUE (`丅丅丅`);
#Multi-byte field name is not allowed for FOREIGN KEY As of 4.1.4
#ALTER TABLE `龖龖龖` ADD FOREIGN KEY (`乚乚乚`) REFERENCES `龗龗龗`(`乚乚乚`);
ALTER TABLE `龖龖龖` CHANGE `丄丄丄` `丄丄` char(1);
ALTER TABLE `龖龖龖` MODIFY `丂丂丂` char(6);

SELECT * FROM `龖龖龖`;
DESC `龖龖龖`;
SHOW CREATE TABLE `龖龖龖`;

ALTER TABLE `龖龖龖` DROP INDEX `丄丄丄`;
ALTER TABLE `龖龖龖` DROP PRIMARY KEY;
ALTER TABLE `龖龖龖` DROP INDEX `丅丅丅`;
#ALTER TABLE `龖龖龖` DROP FOREIGN KEY `乚乚乚`;
ALTER TABLE `龖龖龖` DROP `丄丄`;
ALTER TABLE `龖龖龖` DROP `丅丅丅`;
ALTER TABLE `龖龖龖` DROP `乚乚乚`;

SELECT * FROM `龖龖龖`;
DESC `龖龖龖`;
SHOW CREATE TABLE `龖龖龖`;

DROP TABLE `ｱｱｱ`;
DROP TABLE `ｲｲｲ`;
DROP TABLE `あああ`;
DROP TABLE `いいい`;
DROP TABLE `龖龖龖`;
DROP TABLE `龗龗龗`;

#
# Test MyISAM
#

CREATE TABLE `ｱｱｱ`(`ｷｷｷ` char(5)) DEFAULT CHARSET = ucs2 engine=MYISAM;
CREATE TABLE `ｲｲｲ`(`ｹｹｹ` char(5)) DEFAULT CHARSET = ucs2 engine=MYISAM;
CREATE TABLE `あああ`(`ききき` char(5)) DEFAULT CHARSET = ucs2 engine=MYISAM;
CREATE TABLE `いいい`(`けけけ` char(5)) DEFAULT CHARSET = ucs2 engine=MYISAM;
CREATE TABLE `龖龖龖`(`丂丂丂` char(5)) DEFAULT CHARSET = ucs2 engine=MYISAM;
CREATE TABLE `龗龗龗`(`乚乚乚` char(5)) DEFAULT CHARSET = ucs2 engine=MYISAM;

INSERT INTO `ｱｱｱ` VALUES ('ｱｱｱｱｱ'),('ｲｲｲｲｲ'),('ｳｳｳｳｳ');
INSERT INTO `あああ` VALUES ('あああああ'),('いいいいい'),('ううううう');
INSERT INTO `龖龖龖` VALUES ('丂丂丂丂丂'),('丄丄丄丄丄'),('丅丅丅丅丅');

ALTER TABLE `ｱｱｱ` ADD `ｶｶｶ` char(1) FIRST;
ALTER TABLE `ｱｱｱ` ADD `ｸｸｸ` char(1) AFTER `ｷｷｷ`;
ALTER TABLE `ｱｱｱ` ADD `ｹｹｹ` char(1);
ALTER TABLE `ｱｱｱ` ADD INDEX (`ｶｶｶ`);
ALTER TABLE `ｱｱｱ` ADD PRIMARY KEY (`ｷｷｷ`);
ALTER TABLE `ｱｱｱ` ADD UNIQUE (`ｸｸｸ`);
#ALTER TABLE `ｱｱｱ` ADD FOREIGN KEY (`ｹｹｹ`) REFERENCES `ｲｲｲ`(`ｹｹｹ`);
ALTER TABLE `ｱｱｱ` CHANGE `ｶｶｶ` `ｶｶ` char(1);
ALTER TABLE `ｱｱｱ` MODIFY `ｷｷｷ` char(6);

SELECT * FROM `ｱｱｱ`;
DESC `ｱｱｱ`;
SHOW CREATE TABLE `ｱｱｱ`;

ALTER TABLE `ｱｱｱ` DROP INDEX `ｶｶｶ`;
ALTER TABLE `ｱｱｱ` DROP PRIMARY KEY;
ALTER TABLE `ｱｱｱ` DROP INDEX `ｸｸｸ`;
#ALTER TABLE `ｱｱｱ` DROP FOREIGN KEY `ｹｹｹ`;
ALTER TABLE `ｱｱｱ` DROP `ｶｶ`;
ALTER TABLE `ｱｱｱ` DROP `ｸｸｸ`;
ALTER TABLE `ｱｱｱ` DROP `ｹｹｹ`;
SELECT * FROM `ｱｱｱ`;
DESC `ｱｱｱ`;
SHOW CREATE TABLE `ｱｱｱ`;

ALTER TABLE `あああ` ADD `かかか` char(1) FIRST;
ALTER TABLE `あああ` ADD `くくく` char(1) AFTER `ききき`;
ALTER TABLE `あああ` ADD `けけけ` char(1);
ALTER TABLE `あああ` ADD INDEX (`かかか`);
ALTER TABLE `あああ` ADD PRIMARY KEY (`ききき`);
ALTER TABLE `あああ` ADD UNIQUE (`くくく`);
#ALTER TABLE `あああ` ADD FOREIGN KEY (`けけけ`) REFERENCES `いいい`(`けけけ`);
ALTER TABLE `あああ` CHANGE `かかか` `かか` char(1);
ALTER TABLE `あああ` MODIFY `ききき` char(6);

SELECT * FROM `あああ`;
DESC `あああ`;
SHOW CREATE TABLE `あああ`;

ALTER TABLE `あああ` DROP INDEX `かかか`;
ALTER TABLE `あああ` DROP PRIMARY KEY;
ALTER TABLE `あああ` DROP INDEX `くくく`;
#ALTER TABLE `あああ` DROP FOREIGN KEY `けけけ`;
ALTER TABLE `あああ` DROP `かか`;
ALTER TABLE `あああ` DROP `くくく`;
ALTER TABLE `あああ` DROP `けけけ`;

SELECT * FROM `あああ`;
DESC `あああ`;
SHOW CREATE TABLE `あああ`;

ALTER TABLE `龖龖龖` ADD `丄丄丄` char(1) FIRST;
ALTER TABLE `龖龖龖` ADD `丅丅丅` char(1) AFTER `丂丂丂`;
ALTER TABLE `龖龖龖` ADD `乚乚乚` char(1);
ALTER TABLE `龖龖龖` ADD INDEX (`丄丄丄`);
ALTER TABLE `龖龖龖` ADD PRIMARY KEY (`丂丂丂`);
ALTER TABLE `龖龖龖` ADD UNIQUE (`丅丅丅`);
#ALTER TABLE `龖龖龖` ADD FOREIGN KEY (`乚乚乚`) REFERENCES `龗龗龗`(`乚乚乚`);
ALTER TABLE `龖龖龖` CHANGE `丄丄丄` `丄丄` char(1);
ALTER TABLE `龖龖龖` MODIFY `丂丂丂` char(6);

SELECT * FROM `龖龖龖`;
DESC `龖龖龖`;
SHOW CREATE TABLE `龖龖龖`;

ALTER TABLE `龖龖龖` DROP INDEX `丄丄丄`;
ALTER TABLE `龖龖龖` DROP PRIMARY KEY;
ALTER TABLE `龖龖龖` DROP INDEX `丅丅丅`;
#ALTER TABLE `龖龖龖` DROP FOREIGN KEY `乚乚乚`;
ALTER TABLE `龖龖龖` DROP `丄丄`;
ALTER TABLE `龖龖龖` DROP `丅丅丅`;
ALTER TABLE `龖龖龖` DROP `乚乚乚`;

SELECT * FROM `龖龖龖`;
DESC `龖龖龖`;
SHOW CREATE TABLE `龖龖龖`;

DROP TABLE `ｱｱｱ`;
DROP TABLE `ｲｲｲ`;
DROP TABLE `あああ`;
DROP TABLE `いいい`;
DROP TABLE `龖龖龖`;
DROP TABLE `龗龗龗`;

#
# Test HEAP
#

CREATE TABLE `ｱｱｱ`(`ｷｷｷ` char(5)) DEFAULT CHARSET = ucs2 engine=HEAP;
CREATE TABLE `ｲｲｲ`(`ｹｹｹ` char(5)) DEFAULT CHARSET = ucs2 engine=HEAP;
CREATE TABLE `あああ`(`ききき` char(5)) DEFAULT CHARSET = ucs2 engine=HEAP;
CREATE TABLE `いいい`(`けけけ` char(5)) DEFAULT CHARSET = ucs2 engine=HEAP;
CREATE TABLE `龖龖龖`(`丂丂丂` char(5)) DEFAULT CHARSET = ucs2 engine=HEAP;
CREATE TABLE `龗龗龗`(`乚乚乚` char(5)) DEFAULT CHARSET = ucs2 engine=HEAP;

INSERT INTO `ｱｱｱ` VALUES ('ｱｱｱｱｱ'),('ｲｲｲｲｲ'),('ｳｳｳｳｳ');
INSERT INTO `あああ` VALUES ('あああああ'),('いいいいい'),('ううううう');
INSERT INTO `龖龖龖` VALUES ('丂丂丂丂丂'),('丄丄丄丄丄'),('丅丅丅丅丅');

ALTER TABLE `ｱｱｱ` ADD `ｶｶｶ` char(1) FIRST;
ALTER TABLE `ｱｱｱ` ADD `ｸｸｸ` char(1) AFTER `ｷｷｷ`;
ALTER TABLE `ｱｱｱ` ADD `ｹｹｹ` char(1);
ALTER TABLE `ｱｱｱ` ADD INDEX (`ｶｶｶ`);
ALTER TABLE `ｱｱｱ` ADD PRIMARY KEY (`ｷｷｷ`);
ALTER TABLE `ｱｱｱ` ADD UNIQUE (`ｸｸｸ`);
#ALTER TABLE `ｱｱｱ` ADD FOREIGN KEY (`ｹｹｹ`) REFERENCES `ｲｲｲ`(`ｹｹｹ`);
ALTER TABLE `ｱｱｱ` CHANGE `ｶｶｶ` `ｶｶ` char(1);
ALTER TABLE `ｱｱｱ` MODIFY `ｷｷｷ` char(6);

SELECT * FROM `ｱｱｱ`;
DESC `ｱｱｱ`;
SHOW CREATE TABLE `ｱｱｱ`;

ALTER TABLE `ｱｱｱ` DROP INDEX `ｶｶｶ`;
ALTER TABLE `ｱｱｱ` DROP PRIMARY KEY;
ALTER TABLE `ｱｱｱ` DROP INDEX `ｸｸｸ`;
#ALTER TABLE `ｱｱｱ` DROP FOREIGN KEY `ｹｹｹ`;
ALTER TABLE `ｱｱｱ` DROP `ｶｶ`;
ALTER TABLE `ｱｱｱ` DROP `ｸｸｸ`;
ALTER TABLE `ｱｱｱ` DROP `ｹｹｹ`;
SELECT * FROM `ｱｱｱ`;
DESC `ｱｱｱ`;
SHOW CREATE TABLE `ｱｱｱ`;

ALTER TABLE `あああ` ADD `かかか` char(1) FIRST;
ALTER TABLE `あああ` ADD `くくく` char(1) AFTER `ききき`;
ALTER TABLE `あああ` ADD `けけけ` char(1);
ALTER TABLE `あああ` ADD INDEX (`かかか`);
ALTER TABLE `あああ` ADD PRIMARY KEY (`ききき`);
ALTER TABLE `あああ` ADD UNIQUE (`くくく`);
#ALTER TABLE `あああ` ADD FOREIGN KEY (`けけけ`) REFERENCES `いいい`(`けけけ`);
ALTER TABLE `あああ` CHANGE `かかか` `かか` char(1);
ALTER TABLE `あああ` MODIFY `ききき` char(6);

SELECT * FROM `あああ`;
DESC `あああ`;
SHOW CREATE TABLE `あああ`;

ALTER TABLE `あああ` DROP INDEX `かかか`;
ALTER TABLE `あああ` DROP PRIMARY KEY;
ALTER TABLE `あああ` DROP INDEX `くくく`;
#ALTER TABLE `あああ` DROP FOREIGN KEY `けけけ`;
ALTER TABLE `あああ` DROP `かか`;
ALTER TABLE `あああ` DROP `くくく`;
ALTER TABLE `あああ` DROP `けけけ`;

SELECT * FROM `あああ`;
DESC `あああ`;
SHOW CREATE TABLE `あああ`;

ALTER TABLE `龖龖龖` ADD `丄丄丄` char(1) FIRST;
ALTER TABLE `龖龖龖` ADD `丅丅丅` char(1) AFTER `丂丂丂`;
ALTER TABLE `龖龖龖` ADD `乚乚乚` char(1);
ALTER TABLE `龖龖龖` ADD INDEX (`丄丄丄`);
ALTER TABLE `龖龖龖` ADD PRIMARY KEY (`丂丂丂`);
ALTER TABLE `龖龖龖` ADD UNIQUE (`丅丅丅`);
#ALTER TABLE `龖龖龖` ADD FOREIGN KEY (`乚乚乚`) REFERENCES `龗龗龗`(`乚乚乚`);
ALTER TABLE `龖龖龖` CHANGE `丄丄丄` `丄丄` char(1);
ALTER TABLE `龖龖龖` MODIFY `丂丂丂` char(6);

SELECT * FROM `龖龖龖`;
DESC `龖龖龖`;
SHOW CREATE TABLE `龖龖龖`;

ALTER TABLE `龖龖龖` DROP INDEX `丄丄丄`;
ALTER TABLE `龖龖龖` DROP PRIMARY KEY;
ALTER TABLE `龖龖龖` DROP INDEX `丅丅丅`;
#ALTER TABLE `龖龖龖` DROP FOREIGN KEY `乚乚乚`;
ALTER TABLE `龖龖龖` DROP `丄丄`;
ALTER TABLE `龖龖龖` DROP `丅丅丅`;
ALTER TABLE `龖龖龖` DROP `乚乚乚`;

SELECT * FROM `龖龖龖`;
DESC `龖龖龖`;
SHOW CREATE TABLE `龖龖龖`;

DROP TABLE `ｱｱｱ`;
DROP TABLE `ｲｲｲ`;
DROP TABLE `あああ`;
DROP TABLE `いいい`;
DROP TABLE `龖龖龖`;
DROP TABLE `龗龗龗`;

#
# Test BDB
#

CREATE TABLE `ｱｱｱ`(`ｷｷｷ` char(5)) DEFAULT CHARSET = ucs2 engine=BDB;
CREATE TABLE `ｲｲｲ`(`ｹｹｹ` char(5)) DEFAULT CHARSET = ucs2 engine=BDB;
CREATE TABLE `あああ`(`ききき` char(5)) DEFAULT CHARSET = ucs2 engine=BDB;
CREATE TABLE `いいい`(`けけけ` char(5)) DEFAULT CHARSET = ucs2 engine=BDB;
CREATE TABLE `龖龖龖`(`丂丂丂` char(5)) DEFAULT CHARSET = ucs2 engine=BDB;
CREATE TABLE `龗龗龗`(`乚乚乚` char(5)) DEFAULT CHARSET = ucs2 engine=BDB;

INSERT INTO `ｱｱｱ` VALUES ('ｱｱｱｱｱ'),('ｲｲｲｲｲ'),('ｳｳｳｳｳ');
INSERT INTO `あああ` VALUES ('あああああ'),('いいいいい'),('ううううう');
INSERT INTO `龖龖龖` VALUES ('丂丂丂丂丂'),('丄丄丄丄丄'),('丅丅丅丅丅');

ALTER TABLE `ｱｱｱ` ADD `ｶｶｶ` char(1) FIRST;
ALTER TABLE `ｱｱｱ` ADD `ｸｸｸ` char(1) AFTER `ｷｷｷ`;
ALTER TABLE `ｱｱｱ` ADD `ｹｹｹ` char(1);
ALTER TABLE `ｱｱｱ` ADD INDEX (`ｶｶｶ`);
ALTER TABLE `ｱｱｱ` ADD PRIMARY KEY (`ｷｷｷ`);
#Multiple NULL fields are not allowed in BDB
#ALTER TABLE `ｱｱｱ` ADD UNIQUE (`ｸｸｸ`);
#ALTER TABLE `ｱｱｱ` ADD FOREIGN KEY (`ｹｹｹ`) REFERENCES `ｲｲｲ`(`ｹｹｹ`);
ALTER TABLE `ｱｱｱ` CHANGE `ｶｶｶ` `ｶｶ` char(1);
ALTER TABLE `ｱｱｱ` MODIFY `ｷｷｷ` char(6);

SELECT * FROM `ｱｱｱ`;
DESC `ｱｱｱ`;
SHOW CREATE TABLE `ｱｱｱ`;

ALTER TABLE `ｱｱｱ` DROP INDEX `ｶｶｶ`;
ALTER TABLE `ｱｱｱ` DROP PRIMARY KEY;
#ALTER TABLE `ｱｱｱ` DROP INDEX `ｸｸｸ`;
#ALTER TABLE `ｱｱｱ` DROP FOREIGN KEY `ｹｹｹ`;
ALTER TABLE `ｱｱｱ` DROP `ｶｶ`;
ALTER TABLE `ｱｱｱ` DROP `ｸｸｸ`;
ALTER TABLE `ｱｱｱ` DROP `ｹｹｹ`;
SELECT * FROM `ｱｱｱ`;
DESC `ｱｱｱ`;
SHOW CREATE TABLE `ｱｱｱ`;

ALTER TABLE `あああ` ADD `かかか` char(1) FIRST;
ALTER TABLE `あああ` ADD `くくく` char(1) AFTER `ききき`;
ALTER TABLE `あああ` ADD `けけけ` char(1);
ALTER TABLE `あああ` ADD INDEX (`かかか`);
ALTER TABLE `あああ` ADD PRIMARY KEY (`ききき`);
#ALTER TABLE `あああ` ADD UNIQUE (`くくく`);
#ALTER TABLE `あああ` ADD FOREIGN KEY (`けけけ`) REFERENCES `いいい`(`けけけ`);
ALTER TABLE `あああ` CHANGE `かかか` `かか` char(1);
ALTER TABLE `あああ` MODIFY `ききき` char(6);

SELECT * FROM `あああ`;
DESC `あああ`;
SHOW CREATE TABLE `あああ`;

ALTER TABLE `あああ` DROP INDEX `かかか`;
ALTER TABLE `あああ` DROP PRIMARY KEY;
#ALTER TABLE `あああ` DROP INDEX `くくく`;
#ALTER TABLE `あああ` DROP FOREIGN KEY `けけけ`;
ALTER TABLE `あああ` DROP `かか`;
ALTER TABLE `あああ` DROP `くくく`;
ALTER TABLE `あああ` DROP `けけけ`;

SELECT * FROM `あああ`;
DESC `あああ`;
SHOW CREATE TABLE `あああ`;

ALTER TABLE `龖龖龖` ADD `丄丄丄` char(1) FIRST;
ALTER TABLE `龖龖龖` ADD `丅丅丅` char(1) AFTER `丂丂丂`;
ALTER TABLE `龖龖龖` ADD `乚乚乚` char(1);
ALTER TABLE `龖龖龖` ADD INDEX (`丄丄丄`);
ALTER TABLE `龖龖龖` ADD PRIMARY KEY (`丂丂丂`);
#ALTER TABLE `龖龖龖` ADD UNIQUE (`丅丅丅`);
#ALTER TABLE `龖龖龖` ADD FOREIGN KEY (`乚乚乚`) REFERENCES `龗龗龗`(`乚乚乚`);
ALTER TABLE `龖龖龖` CHANGE `丄丄丄` `丄丄` char(1);
ALTER TABLE `龖龖龖` MODIFY `丂丂丂` char(6);

SELECT * FROM `龖龖龖`;
DESC `龖龖龖`;
SHOW CREATE TABLE `龖龖龖`;

ALTER TABLE `龖龖龖` DROP INDEX `丄丄丄`;
ALTER TABLE `龖龖龖` DROP PRIMARY KEY;
#ALTER TABLE `龖龖龖` DROP INDEX `丅丅丅`;
#ALTER TABLE `龖龖龖` DROP FOREIGN KEY `乚乚乚`;
ALTER TABLE `龖龖龖` DROP `丄丄`;
ALTER TABLE `龖龖龖` DROP `丅丅丅`;
ALTER TABLE `龖龖龖` DROP `乚乚乚`;

SELECT * FROM `龖龖龖`;
DESC `龖龖龖`;
SHOW CREATE TABLE `龖龖龖`;

DROP TABLE `ｱｱｱ`;
DROP TABLE `ｲｲｲ`;
DROP TABLE `あああ`;
DROP TABLE `いいい`;
DROP TABLE `龖龖龖`;
DROP TABLE `龗龗龗`;