HI James and others ,

    currently, for each statement.executequery, even the query is same ,just 
Parameters is different, the statement will be compile everytime,  it seems 
other than the dynamic parameters, other part like ColumnResolver,GroupBy etc 
all of these are same, why cann't these be reused?  i mean the ScanPlan can be 
reused between the same statement.
   it seems, currently we found these much of complie cost too much cpu time.

   got my question?


Regards
Wenli

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