Feature Group Concatenation Config
| KEY | TYPE | Description |
|---|---|---|
| concatenatedTable | str | The feature group to concatenate with the destination feature group. |
| mergeType | str | The type of merge to perform, either `UNION` or `INTERSECTION`. |
| replaceUntilTimestamp | int | The Unix timestamp to specify the point up to which data from the source feature group will be replaced. |
| skipMaterialize | bool | If `True`, the concatenated feature group will not be materialized. |