I'm a Linq noob so please excuse my ignorance but I need to group by a column in a table and then return just that column. I should end up with a list of unique numbers.

This is my Linq

```
from r in myTable
group r.UserID by r.UserID

```

but in Linq pad it gets close to what I want but each similar ID has a 'key' or something with all the same ids grouped together, included in the results. I just want a list of numbers.

this is the SQL that is perfect.

```
SELECT UserID FROM myTable
GROUP BY UserID

```