MySQL foreign keys' referenced table name always forced to lowercase - mysql

Question

First, create these two tables:
CREATE TABLE IF NOT EXISTS TAB_COMPANY (
ID INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
NAME VARCHAR(100) NOT NULL,
PRIMARY KEY(ID),
UNIQUE KEY(NAME)
) ENGINE=INNODB DEFAULT CHARSET=UTF8;
CREATE TABLE IF NOT EXISTS TAB_DEPARTMENT (
ID INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
NAME VARCHAR(100) NOT NULL,
COMPANYID INT(10) UNSIGNED NOT NULL,
PRIMARY KEY(ID),
INDEX FK_TAB_DEPARTMENT_TAB_COMPANY_COMPANYID(COMPANYID ASC),
CONSTRAINT FK_TAB_DEPARTMENT_TAB_COMPANY_COMPANYID
FOREIGN KEY (COMPANYID) REFERENCES TAB_COMPANY(ID) ON DELETE CASCADE
) ENGINE=INNODB DEFAULT CHARSET=UTF8;
Then show create table TAB_DEPARTMENT:
CREATE TABLE `TAB_DEPARTMENT` (
`ID` int(10) unsigned NOT NULL AUTO_INCREMENT,
`NAME` varchar(100) NOT NULL,
`COMPANYID` int(10) unsigned NOT NULL,
PRIMARY KEY (`ID`),
KEY `FK_TAB_DEPARTMENT_TAB_COMPANY_COMPANYID` (`COMPANYID`),
CONSTRAINT `FK_TAB_DEPARTMENT_TAB_COMPANY_COMPANYID` FOREIGN KEY (`COMPANYID`)
REFERENCES `tab_company` (`ID`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8
The table name in foreign key reference clause is forced to lower case.
mysql> show variables like '%lower%';
lower_case_file_system ON
lower_case_table_names 0
mysql> show variables like 'version';
version 5.1.43-community
My platform is Window XP with SP3. I tested this on Linux, it is OK.
Has anyone encountered this issue before? I already reported a bug to MySQL.
I just tried on version 5.1.49-community, and the issue is still there.

Answer 1

Got the reply from MySQL:
From Miguel Solorzano:
Thank you for the bug report. This a documented restriction of InnoDB
table:
http://dev.mysql.com/doc/refman/5.1/en/innodb-restrictions.html
"On Windows, InnoDB always stores database and table names internally
in lowercase. To move databases in a binary format from Unix to Windows
or from Windows to Unix, you should create all databases and tables
using lowercase names. "