How to use:

1. g++ doris_client.cpp -o doris_client `mysql_config --cflags --libs`
2. ./doris_client

What can this demo do:

This is a cpp demo for doris client, you can test basic function such as
connection, CRUD of your doris. You should install mysql prior to running
this demo.

Supported mysql version: 5.6, 5.7, ..., 8.0