| spo_hist_sk | bigint | Primary key for the SPO history row. |
| spo_sk | varchar | Stake pool operator key / identifier. |
| epoch_no | bigint | Epoch number for this status record. |
| status | varchar | SPO status in the epoch. |
| valid_from | bigint | Start of validity for this status. |
| valid_to | bigint | End of validity for this status. |
| _updated_at | timestamp | Timestamp when this record was last updated. |
| _ingested_at | timestamp | Timestamp when this record was ingested into Dune. |
