[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3161) No Dialect mapping for JDBC type: -4

No Dialect mapping for JDBC type: -4 ------------------------------------ Key: HHH-3161 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3161 Project: Hibernate3 Issue Type: Bug Components: core, query-hql, query-sql Affects Versions: 3.2.1 Environment: hibernate 3.2.1 + mysql Reporter: cyrus Priority: Critical When I execute the statement below: SELECT concat(case ip_protocol when 6 then 'TCP' when 17 then 'UDP' else 'OTHER' end, ', PORT ', repeat(' ', 5 - length(if(port is NULL, 0, port))), if(port is NULL, 0, port)) as protocol, concat(case ip_protocol when 6 then 'TCP' when 17 then 'UDP' else 'OTHER' end, if(port is NULL, 0, port)) as id, sum(byte_subtotal) as total FROM usage_sum_minute WHERE from_unixtime(time_min * 60) between '2008-02-03 14:00:00' and '2008-03-05 13:59:00' GROUP BY protocol ORDER BY total DESC LIMIT 0, 20 DB schema: CREATE TABLE `ascot`.`usage_sum_minute` ( `id` int(11) NOT NULL auto_increment, `igateway_id` smallint(5) NOT NULL, `time_min` int(11) NOT NULL, `user_name` varchar(255) default NULL, `mac_local` varchar(80) NOT NULL, `ip_local` bigint(20) NOT NULL, `ip_remote` bigint(20) NOT NULL, `ip_protocol` smallint(5) NOT NULL, `port` smallint(6) default NULL, `domain_name` char(80) default NULL, `url` varchar(1024) default NULL, `byte_subtotal` int(11) NOT NULL, PRIMARY KEY (`id`), UNIQUE KEY `id` (`id`), KEY `index_igateway` (`igateway_id`), KEY `index_protocol` (`ip_protocol`), KEY `index_minute` (`time_min`), KEY `index_user` (`user_name`), KEY `index_port` (`port`), KEY `index_ip` (`ip_remote`) ) ENGINE=InnoDB AUTO_INCREMENT=505699 DEFAULT CHARSET=latin1 It give an exception "No Dialect mapping for JDBC type: -4"