Fix two things: 1. Fix that the MySQL table displays the garbled code even if the UTF8 is specified for table. 2. Fix that `test_mysql_jdbc_catalog.out` lack of returned data for table `ex_tb13`.
Fix two things: 1. Fix that the MySQL table displays the garbled code even if the UTF8 is specified for table. 2. Fix that `test_mysql_jdbc_catalog.out` lack of returned data for table `ex_tb13`.