TDengine清理数据文件

清理会丢失用户以及库信息，需提前准备好备份

1. 停止taosd、taosAdapter

systemctl stop taosadapter

systemctl status taosadapter

systemctl stop taosd

systemctl status taosd

2. 删除数据文件

rm -rf /var/lib/taos/*

3. 启动taosd、taosAdapter

systemctl start taosd

systemctl status taosd

systemctl start taosadapter

systemctl status taosadapter

4. 进入taos,建库建用户

create database test duration 5d keep 7d;

-- 密码要单引号
create user user_name pass 'password';

5. 执行切换数据库，执行某些建表DDL