CreateImportTask - 创建数据导入任务

-- MySQL 5.7
mysql> CREATE USER 'myadmin'@'%' IDENTIFIED BY 's3cret';
mysql> GRANT RELOAD, LOCK TABLES, PROCESS, REPLICATION CLIENT, REPLICATION SLAVE ON *.* TO
       'myadmin'@'%';
mysql> FLUSH PRIVILEGES;
-- MySQL 8.0
mysql> CREATE USER 'myadmin'@'%' IDENTIFIED BY 'Test123!';
mysql> GRANT BACKUP_ADMIN, PROCESS, RELOAD, LOCK TABLES, REPLICATION CLIENT, REPLICATION SLAVE ON *.* TO 'myadmin'@'%';
mysql> GRANT SELECT ON performance_schema.log_status TO 'myadmin'@'%';
mysql> GRANT SELECT ON performance_schema.keyring_component_status TO myadmin@'%';
mysql> GRANT SELECT ON performance_schema.replication_group_members TO myadmin@'%';
mysql> FLUSH PRIVILEGES;