How to create double bar charts?

Grafana Time Series Panel
,
1

Hello all,
I want to compare the storage internal and external of each version. But I cant create the chart like image :
1

This is my query :

select buildid , SUM(size) as size , type, (array_agg(inserttime))[1] as time
from tbl_disk
group by buildid, type
order by buildid;

The data when I run query on console :

 buildid                               |          size     | type |            time
 ------------------------------------+------------------+------+----------------------------
 7e048c8b-9998-4222-8c83-ecea7ddf233b  | 228215.439677622 |    1  | 2018-05-28 16:29:54.657+07
 7e048c8b-9998-4222-8c83-ecea7ddf233b  | 22688.4199380986 |    0  | 2018-05-28 16:31:42.218+07
(2 rows)

and chart after query :

11
111754×735 35.5 KB

How can I create the chart like image with Grafana , please tell me if you have any suggest.

2

Suggest me if you have any idea, please.

3

Oh man, I’d love to have that to be able to compare last year and this year solar production!