http://bugs.mysql.com/bug.php?id=65648
On Fri, Jun 15, 2012 at 7:00 PM, Rick James <rja...@yahoo-inc.com> wrote: > You are very close to a standalone test case. Please create such. Then post > it on bugs.mysql.com . > >> -----Original Message----- >> From: GF [mailto:gan...@gmail.com] >> Sent: Friday, June 15, 2012 12:45 AM >> To: Rick James >> Cc: Shawn Green; mysql@lists.mysql.com >> Subject: Re: Foreign key and uppercase / lowercase values >> >> I think the following might give complete information (I removed some >> columns not involved in the problem) >> >> Server version: 5.1.49-3 (Debian) >> >> SET collation_connection = utf8_unicode_ci; Query OK, 0 rows affected >> (0.00 sec) >> >> >> >> show variables like '%colla%'; >> +----------------------+-----------------+ >> | Variable_name | Value | >> +----------------------+-----------------+ >> | collation_connection | utf8_unicode_ci | >> | collation_database | utf8_unicode_ci | >> | collation_server | utf8_unicode_ci | >> +----------------------+-----------------+ >> 3 rows in set (0.00 sec) >> >> show variables like '%char%'; >> +--------------------------+----------------------------+ >> | Variable_name | Value | >> +--------------------------+----------------------------+ >> | character_set_client | utf8 | >> | character_set_connection | utf8 | >> | character_set_database | utf8 | >> | character_set_filesystem | binary | >> | character_set_results | utf8 | >> | character_set_server | utf8 | >> | character_set_system | utf8 | >> | character_sets_dir | /usr/share/mysql/charsets/ | >> +--------------------------+----------------------------+ >> 8 rows in set (0.00 sec) >> >> >> select USER_ID from TBL_USER where USER_ID = 'GIUSEPPE'; >> +----------+ >> | USER_ID | >> +----------+ >> | GIUSEPPE | >> +----------+ >> 1 row in set (0.00 sec) >> >> select USER_ID from TBL_USER where USER_ID = 'giuseppe'; >> +----------+ >> | USER_ID | >> +----------+ >> | GIUSEPPE | >> +----------+ >> 1 row in set (0.00 sec) >> >> >> update TBL_USER set USER_ID = LOWER(USER_ID) where USER_ID = >> 'GIUSEPPE'; ERROR 1451 (23000): Cannot delete or update a parent row: a >> foreign key constraint fails (`myschema`.`TBL_COMMENT`, CONSTRAINT >> `FK4F6E52581590B46E` FOREIGN KEY (`USER_ID`) REFERENCES `TBL_USER` >> (`USER_ID`)) >> >> >> >> | TBL_USER | CREATE TABLE `TBL_USER` ( >> `USER_ID` varchar(50) COLLATE utf8_unicode_ci NOT NULL, >> >> << cut >> >> PRIMARY KEY (`USER_ID`), >> << cut >> >> ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci | >> >> >> >> | TBL_COMMENT | CREATE TABLE `TBL_COMMENT` ( >> << cut >> >> `ID` bigint(20) NOT NULL AUTO_INCREMENT, >> << cut >> >> `USER_ID` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL, >> << cut >> >> PRIMARY KEY (`ID`), >> << cut >> >> KEY `FK4F6E52581590B46E` (`USER_ID`), >> << cut >> >> CONSTRAINT `FK4F6E52581590B46E` FOREIGN KEY (`USER_ID`) REFERENCES >> `TBL_USER` (`USER_ID`), >> << cut >> >> ) ENGINE=InnoDB AUTO_INCREMENT=7876 DEFAULT CHARSET=utf8 >> COLLATE=utf8_unicode_ci | -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql
