By using db<>fiddle, you agree to license everything you submit by Creative Commons CC0.
6 rows affected
| sendinguser | ReceivingUser | MessageCount |
|---|---|---|
| User 1 | User 2 | 3 |
| User 2 | User 1 | 1 |
| User 3 | User 4 | 2 |
6 rows affected
| sendinguser | ReceivingUser | MessageCount |
|---|---|---|
| User 1 | User 2 | 3 |
| User 2 | User 1 | 1 |
| User 3 | User 4 | 2 |