- **Description**: Performs a sequential scan of a table. - **Performance**: Scans the entire table, can be slow. - **Factors**: Table size, disk access speed. - **Cost**: `disk I/O cost * table size` - ![[ex_scan.svg|200x200]] - **Operates on**: [[Table]] - **Workloads**: - [[IO]] - [[DataFileRead]] - [[DataFilePrefetch]] - [[LWLock]] - [[BufferContent]] - [[BufferMapping]] - [[SyncScan]]