diff --git a/pkg/lightning/restore/tidb.go b/pkg/lightning/restore/tidb.go
index a672e7742..18b7713a4 100644
--- a/pkg/lightning/restore/tidb.go
+++ b/pkg/lightning/restore/tidb.go
@@ -196,7 +196,7 @@ func createTableIfNotExistsStmt(p *parser.Parser, createTable, dbName, tblName s
 	}
 
 	var res strings.Builder
-	ctx := format.NewRestoreCtx(format.DefaultRestoreFlags, &res)
+	ctx := format.NewRestoreCtx(format.DefaultRestoreFlags|format.RestoreStringWithoutDefaultCharset, &res)
 
 	retStmts := make([]string, 0, len(stmts))
 	for _, stmt := range stmts {
diff --git a/pkg/lightning/restore/tidb_test.go b/pkg/lightning/restore/tidb_test.go
index 738220353..fab65d679 100644
--- a/pkg/lightning/restore/tidb_test.go
+++ b/pkg/lightning/restore/tidb_test.go
@@ -101,7 +101,7 @@ func (s *tidbSuite) TestCreateTableIfNotExistsStmt(c *C) {
 	c.Assert(
 		createTableIfNotExistsStmt("CREATE TABLE `foo`(`bar` INT(1) COMMENT 'CREATE TABLE');", "foo"),
 		DeepEquals,
-		[]string{"CREATE TABLE IF NOT EXISTS `testdb`.`foo` (`bar` INT(1) COMMENT _UTF8MB4'CREATE TABLE');"},
+		[]string{"CREATE TABLE IF NOT EXISTS `testdb`.`foo` (`bar` INT(1) COMMENT 'CREATE TABLE');"},
 	)
 
 	// upper case becomes shorter
@@ -141,7 +141,7 @@ func (s *tidbSuite) TestCreateTableIfNotExistsStmt(c *C) {
 		`, "m"),
 		DeepEquals,
 		[]string{
-			"SET NAMES _UTF8MB4'binary';",
+			"SET NAMES 'binary';",
 			"SET @@SESSION.`FOREIGN_KEY_CHECKS`=0;",
 			"CREATE TABLE IF NOT EXISTS `testdb`.`m` (`z` DOUBLE) ENGINE = InnoDB AUTO_INCREMENT = 8343230 DEFAULT CHARACTER SET = UTF8;",
 		},
@@ -166,7 +166,7 @@ func (s *tidbSuite) TestCreateTableIfNotExistsStmt(c *C) {
 		`, "m"),
 		DeepEquals,
 		[]string{
-			"SET NAMES _UTF8MB4'binary';",
+			"SET NAMES 'binary';",
 			"DROP TABLE IF EXISTS `testdb`.`m`;",
 			"DROP VIEW IF EXISTS `testdb`.`m`;",
 			"SET @`PREV_CHARACTER_SET_CLIENT`=@@`character_set_client`;",
diff --git a/tests/br_full_ddl/run.sh b/tests/br_full_ddl/run.sh
index 8a351ef31..0fc7e7900 100755
--- a/tests/br_full_ddl/run.sh
+++ b/tests/br_full_ddl/run.sh
@@ -18,6 +18,8 @@ DB="$TEST_NAME"
 TABLE="usertable"
 DDL_COUNT=10
 LOG=/$TEST_DIR/backup.log
+BACKUP_STAT=/$TEST_DIR/backup_stat
+RESOTRE_STAT=/$TEST_DIR/restore_stat
 
 run_sql "CREATE DATABASE $DB;"
 go-ycsb load mysql -P tests/$TEST_NAME/workload -p mysql.host=$TIDB_IP -p mysql.port=$TIDB_PORT -p mysql.user=root -p mysql.db=$DB
@@ -94,10 +96,10 @@ fi
 
 echo "restore full without stats..."
 run_br restore full -s "local://$TEST_DIR/${DB}_disable_stats" --pd $PD_ADDR
-curl $TIDB_IP:10080/stats/dump/$DB/$TABLE | jq '.columns.field0' | jq 'del(.last_update_version)' > restore_stats
+curl $TIDB_IP:10080/stats/dump/$DB/$TABLE | jq '.columns.field0' | jq 'del(.last_update_version)' > $RESOTRE_STAT
 
 # stats should not be equal because we disable stats by default.
-if diff -q backup_stats restore_stats > /dev/null
+if diff -q $BACKUP_STAT $RESOTRE_STAT > /dev/null
 then
   echo "TEST: [$TEST_NAME] fail due to stats are equal"
   exit 1
@@ -134,13 +136,13 @@ fi
 
 run_curl https://$TIDB_STATUS_ADDR/stats/dump/$DB/$TABLE | jq '.columns.field0 | del(.last_update_version)' > $RESOTRE_STAT
 
-if diff -q backup_stats restore_stats > /dev/null
+if diff -q $BACKUP_STAT $RESOTRE_STAT > /dev/null
 then
   echo "stats are equal"
 else
   echo "TEST: [$TEST_NAME] fail due to stats are not equal"
-  cat $backup_stats | head 1000
-  cat $restore_stats | head 1000
+  cat $BACKUP_STAT | head -n 1000
+  cat $RESOTRE_STAT | head -n 1000
   exit 1
 fi