- 
    Type:
Task
 - 
    Resolution: Won't Do
 - 
    Priority:
Major - P3
 - 
    None
 - 
    Affects Version/s: None
 - 
    Component/s: None
 - 
    None
 
- 
        Storage Execution
 - 
        None
 
- 
        None
 - 
        None
 - 
        None
 - 
        None
 - 
        None
 - 
        None
 
dbhash performs an an _id index scan provided an _id index exists. However, in capped collections, even if the _id index exists, we should still be performing a collection scan to ensure natural ordering is preserved.
- depends on
 - 
                    
SERVER-82180 Capped inserts on the primary can have a different natural ordering from secondaries
-         
 - Closed
 
 -         
 
- is related to
 - 
                    
SERVER-720 dbhash
-         
 - Closed
 
 -         
 
- related to
 - 
                    
SERVER-86902 Add flag to dbHash to go in recordId order / include recordIds
-         
 - Closed
 
 -         
 - 
                    
SERVER-90303 Complete TODO listed in SERVER-86692
-         
 - Closed
 
 -