SET NAMES utf8mb4; # # MDEV-8765 mysqldump silently corrupts 4-byte UTF-8 data # CREATE TABLE t1 ( point VARCHAR(10) PRIMARY KEY, data VARCHAR(10), comment VARCHAR(64) ) CHARACTER SET utf8mb4; INSERT INTO t1 VALUES ('01f300', UNHEX('f09f8c80'), 'U+1F300 CYCLONE'); ---- Testing XML format output ---- 01f300 🌀 U+1F300 CYCLONE ---- Testing text format output ---- /*!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 utf8mb4 */; /*!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 */; DROP TABLE IF EXISTS `t1`; /*!40101 SET @saved_cs_client = @@character_set_client */; /*!40101 SET character_set_client = utf8 */; CREATE TABLE `t1` ( `point` varchar(10) NOT NULL, `data` varchar(10) DEFAULT NULL, `comment` varchar(64) DEFAULT NULL, PRIMARY KEY (`point`) ); /*!40101 SET character_set_client = @saved_cs_client */; LOCK TABLES `t1` WRITE; /*!40000 ALTER TABLE `t1` DISABLE KEYS */; INSERT INTO `t1` VALUES ('01f300','🌀','U+1F300 CYCLONE'); /*!40000 ALTER TABLE `t1` ENABLE KEYS */; UNLOCK TABLES; /*!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 */; DROP TABLE t1; ---- Testing text format dump/restore ---- CREATE TABLE t1 ( point VARCHAR(10) PRIMARY KEY, data VARCHAR(10), comment VARCHAR(64) ) CHARACTER SET utf8mb4; INSERT INTO t1 VALUES ('01f300', UNHEX('f09f8c80'), 'U+1F300 CYCLONE'); DROP TABLE t1; SELECT * FROM t1; point data comment 01f300 🌀 U+1F300 CYCLONE DROP TABLE t1;