![[assets/ex_tidscan.png|256]] - **Description**: Scans a table using tuple IDs. - **Performance**: Efficient for specific tuple IDs. - **Factors**: Number of tuple IDs. - **Cost**: `cpu_tuple_cost * number of tuple IDs` - ![[assets/ex_tid_scan.svg|200x200]] - **Operates on**: [[Structures/Tuple]] - **Workloads**: - [[Workloads/IO]] - [[Workloads/Sub/DataFileRead]] - [[Workloads/LWLock]] - [[Workloads/Sub/BufferContent]]