+------------------+-----------------+------+-----+
| Very Long Column Group Name Here   | Short      |
+------------------+-----------------+------+-----+
| mpg              | cyl             | disp | hp  |
+==================+=================+======+=====+
| 21.0             | 6               | 160  | 110 |
+------------------+-----------------+------+-----+
| 21.0             | 6               | 160  | 110 |
+------------------+-----------------+------+-----+
| 22.8             | 4               | 108  | 93  |
+------------------+-----------------+------+-----+ 
