| Column Name | Data Type | Description |
|---|---|---|
| user_id | INTEGER or VARCHAR | User identifier from input table. |
| event | VARCHAR | Clickstream event from input table. |
| time_stamp | TIMESTAMP | Event timestamp from input table. |
| attribution | DOUBLE PRECISION | Fraction of attribution for conversion event that is attributed to this event. |
| time_to_conversion | INTEGER | Elapsed time between attributable event and conversion event. |