I've tried looking on the JIRA website and through the JQL Documentation. We've got a Kanban board that we're using, and ideally, I'd like it to show the highest priority issue per user that has an issue in the column before sorting in any other way. 

Right now, I've got it ordered by priority DESC, and it will show the following:

```
 - UserA P1
 - UserA P2
 - UserB P2
 - UserB P3
 - UserC P3
 - UserC P3
 - UserA P4
 - UserB P4

```

What I would like to see, ideally, would be this (using the same data):

```
 - UserA P1
 - UserB P2
 - UserC P3
 - Rest of tickets ordered by priority

```

Is that possible to do in JQL?