Fix for the bug #1994: mysqldump does not correctly dump UCS2 data.

client/mysqldump.c

@@ -89,7 +89,11 @@ static char  insert_pat[12 * 1024],*opt_password=0,*current_user=0,
              *where=0,
              *opt_compatible_mode_str= 0,
              *err_ptr= 0;
+#ifdef HAVE_CHARSET_utf8
+static char *default_charset= (char*) "utf8";
+#else
 static char *default_charset= (char*) MYSQL_DEFAULT_CHARSET_NAME;
+#endif
 static ulong opt_compatible_mode= 0;
 static uint     opt_mysql_port= 0, err_len= 0;
 static my_string opt_mysql_unix_port=0;
@@ -351,7 +355,7 @@ static void write_header(FILE *sql_file, char *db_name)
     fprintf(sql_file, "-- Server version\t%s\n",
 	    mysql_get_server_info(&mysql_connection));
     if (!opt_set_names)
-      fprintf(sql_file,"\n/*!40101 SET NAMES %s*/;\n",default_charset);
+      fprintf(sql_file,"\n/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT, CHARACTER_SET_CLIENT=%s */;\n",default_charset);
     fprintf(md_result_file,"\
 /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;\n\
 /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;\n\
@@ -372,6 +376,7 @@ static void write_footer(FILE *sql_file)
 /*!40101 SET SQL_MODE=@OLD_SQL_MODE */;\n\
 /*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;\n\
 /*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;\n\
+/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;\n\
 ");
   }
   fputs("\n", sql_file);

mysql-test/r/mysqldump.result

@@ -62,3 +62,42 @@ INSERT INTO t1 VALUES ("1\""), ("\"2");
 </database>
 </mysqldump>
 DROP TABLE t1;
+CREATE TABLE t1 (a  VARCHAR(255)) DEFAULT CHARSET ucs2;
+INSERT INTO t1  VALUES (_ucs2 x'05D005D505DC05D9');
+-- MySQL dump 10.2
+--
+-- Host: localhost    Database: test
+-- ------------------------------------------------------
+-- Server version	4.1.2-alpha-debug-log
+
+/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT, CHARACTER_SET_CLIENT=utf8 */;
+/*!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 */;
+
+--
+-- Table structure for table `t1`
+--
+
+DROP TABLE IF EXISTS t1;
+CREATE TABLE t1 (
+  a varchar(255) default NULL
+) TYPE=MyISAM DEFAULT CHARSET=ucs2;
+
+--
+-- Dumping data for table `t1`
+--
+
+
+/*!40000 ALTER TABLE t1 DISABLE KEYS */;
+LOCK TABLES t1 WRITE;
+INSERT INTO t1 VALUES ('אולי');
+UNLOCK TABLES;
+/*!40000 ALTER TABLE t1 ENABLE KEYS */;
+
+/*!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 */;
+
+DROP TABLE t1;

mysql-test/t/mysqldump.test

@@ -22,3 +22,12 @@ CREATE TABLE t1 (`a"b"` char(2));
 INSERT INTO t1 VALUES ("1\""), ("\"2");
 --exec $MYSQL_DUMP --skip-all -X test t1
 DROP TABLE t1;
+
+#
+# Bug #1994
+#
+
+CREATE TABLE t1 (a  VARCHAR(255)) DEFAULT CHARSET ucs2;
+INSERT INTO t1  VALUES (_ucs2 x'05D005D505DC05D9');
+--exec $MYSQL_DUMP test t1
+DROP TABLE t1;