I have Module in DataHub without any Dimension
I need to create a column that count distinct (Unique) Value of Agent
Program and Agent are in Text Format
| Date | Program | Agent | Distinct Agent count |
| 01-01-22 | 1 | 21 | 3 |
| 01-01-22 | 1 | 22 | |
| 01-01-22 | 1 | 23 | |
| 01-01-22 | 2 | 21 | 3 |
| 01-01-22 | 2 | 22 | |
| 01-01-22 | 2 | 27 | |
| 01-01-22 | 3 | 21 | 4 |
| 01-01-22 | 3 | 22 | |
| 01-01-22 | 3 | 35 | |
| 01-01-22 | 3 | 46 | |
| 02-01-22 | 1 | 21 | 2 |
| 02-01-22 | 1 | 24 | |
| 02-01-22 | 2 | 29 | 1 |
| 02-01-22 | 2 | 29 | |
| 02-01-22 | 3 | 52 | 1 |