I dont get it. I try to sum up two identical tables with union but it doesnt works.

```
t_fb_data:

id | date      | sum
---------------------
1  | 2017.01.01| 2
2  | 2017.01.02| 1

t_google_data:

id | date      | sum
---------------------
1  | 2017.01.01| 7
2  | 2017.01.02| 1
3  | 2017.01.03| 2

result could looks like:

| date      | sum
------------------
| 2017.01.01| 2
| 2017.01.02| 1
| 2017.01.01| 7
| 2017.01.02| 1
| 2017.01.03| 2

```

This is my Query:

```
SELECT * 
  FROM 
     ( SELECT date
            , sum 
         FROM t_fb_data
     ) T1 
 Union 
     ( SELECT date
            , sum 
         FROM t_google_data
     ) T2 

```

T2 should be wrong because my workbench want an parenthesis in front of T2. But if i do this its wrong two. Do i have to setup something on my workbench?