A
StmtText	
--------------------------------------------------------
  |--Clustered Index Scan(OBJECT:
  ([tempdb].[dbo].[T1].[PK_T1_
  12731CD]), ORDERED BACKWARD)


B
StmtText
--------------------------------------------------------
  |--Sort(ORDER BY:([T1].[keycol] DESC))
     |--Clustered Index Scan(OBJECT:
     ([tempdb].[dbo].[T1].[PK_T1_
     1273C1CD]), ORDERED FORWARD)