Hello! I am running: Server version 4.1.2-alpha-max-log On linux RedHat.
When I execute a simple select, it's dying, with no error message reported or so, the query is simply dying together with the server. After query is died entire server is hang on. I can't even shut it down. Query shows as *** DEAD *** in mysql processlist. Here is a query: select contest_id, question_id, answer_id, answer, count(distinct(answer_id)) as count from user_answer group by question_id, answer_id, answer order by question_id, answer_id The table is: CREATE TABLE `user_answer` ( `user_id` int(11) NOT NULL default '0', `contest_id` int(11) NOT NULL default '0', `question_id` int(11) NOT NULL default '0', `answer_id` int(11) NOT NULL default '0', `answer` char(255) NOT NULL default '', `date` datetime NOT NULL default '0000-00-00 00:00:00', KEY `user_id` (`user_id`), KEY `contest_id` (`contest_id`), KEY `question_id` (`question_id`), KEY `answer_id` (`answer_id`), KEY `date` (`date`), CONSTRAINT `0_3488` FOREIGN KEY (`user_id`) REFERENCES `user` (`id`), CONSTRAINT `0_3489` FOREIGN KEY (`contest_id`) REFERENCES `contest` (`id`), CONSTRAINT `0_3490` FOREIGN KEY (`question_id`) REFERENCES `question` (`id`), CONSTRAINT `0_3491` FOREIGN KEY (`answer_id`) REFERENCES `answer` (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1; A real table has 52000 records. I tested it on a 4.0.1 version - the result is same. Any idead what is wrong with it ? -- With best regards, Ivan Latysh. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]