Description:
Pleasee explicitly note that --hex-blob works for BIT fields as well, and you can tell that this is
very helpful when importing MySQL 5.0 tables with BIT columns into older releases.
How to repeat:
http://dev.mysql.com/doc/refman/5.0/en/mysqldump.html
"The affected columns are BINARY, VARBINARY, BLOB."
/bin/mysqldump --defaults-file=my.cnf --hex-blob test btt >res
-- MySQL dump 10.10
--
-- Host: localhost Database: test
-- ------------------------------------------------------
-- Server version 5.0.16-debug-log
/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0
*/;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
--
-- Table structure for table `btt`
--
DROP TABLE IF EXISTS `btt`;
CREATE TABLE `btt` (
`a` bit(1) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin2;
--
-- Dumping data for table `btt`
--
/*!40000 ALTER TABLE `btt` DISABLE KEYS */;
LOCK TABLES `btt` WRITE;
INSERT INTO `btt` VALUES (0x01),(0x00),(0x01),(0x00);
UNLOCK TABLES;
/*!40000 ALTER TABLE `btt` ENABLE KEYS */;
/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
Compare the produced insert statement without --hex-blob
INSERT INTO `btt` VALUES ('^A'),('\0'),('^A'),('\0');
Suggested fix:
Just document this
