请求：
```
POST 192.168.8.110:6020/rest/sql

Headers:
    Authorization Basic cm9vdDp0YW9zZGF0YQ==
    Content-Type application/json

Body
    select * from test.t
```

响应：
```
{
    "status": "succ",
    "head": [
        "ts",
        "cdata"
    ],
    "data": [
        [
            "2019-08-09 08:00:00.000",
            10
        ],
        [
            "2019-08-09 08:00:05.000",
            20
        ]
    ],
    "rows": 2
}
```